10 Best Pulse Oximeters: Buyer’s Guide With Reviews, Prices, and Everything You Need to Know

Cover image of Best Pulse Oximeters

Why is a pulse oximeter so crucial to medical professionals? It is a tool used daily in hospitals and measures the oxygen haemoglobin in a person’s blood supply. As for the name, the device measures the pulse as a part of a medical checkup. You can get the device for home use. Also, you can monitor your oxygen levels as and when required. They are also an excellent product for sports personnel to monitor the pulse rate during a workout. 

Doctors need to analyze the human body thoroughly during the examination to determine the health of the individual. The human body requires oxygen to function, and it is vital to know if there are any problems related to the same. To clarify, none of the organs of the human body can survive without oxygen-rich blood. The brain especially requires oxygen and deprivation, which could lead to long term problems with the body. The Pulse Oximeters measures the amount of oxygen in the body for doctors to determine if the person is healthy. It is used after surgery, and also to check if a medication is working. 

If oxygen levels in your blood are of concern, you will need a pulse oximeter to determine the accurate reading of your blood oxygen level. The device is easy to use, and results come in quickly. To get the best, you will have to purchase the top tool in the market, and we have a list to help you through the rough. 

What are ‘Pulse Oximeters’?

A Pulse Oximeter is a device that measures oxygen saturation in a person’s body. By this, we mean that it measures the level of oxygen in the blood without the need for invasive means. You can clip the device on your finger, toe, or earlobe. It is a handy device for athletes who continuously monitor their heart rates. Especially during a workout, these athletes can see when they are pushing themselves over the limit. Many experts suggest constant monitoring, especially while mountain climbing and other adventure sports activities. 

When blood flows from the heart to different parts of the body, it carries fresh oxygen along with it. If there is insufficient oxygen in the blood, your organs and tissues will not be adequately oxygenated. Consequently, it could lead to health issues. The device is vital to individuals who receive oxygen from an external source like concentrators or tanks. Knowing how much oxygen is needed to avoid hazardous health issues is the primary goal of this device. 

In addition to the primary function, you can check heart rate status, blood flow, and necessarily monitor the health status of an individual. You can also check the pulse rate of patients quickly. As a result of the convenience, this device allows Doctors to substitute blood gas tests with Oximeters. Doctors and other medical experts no longer need to use invasive measures to check the oxygen level in blood. And as health is the primary function, you need to check on the best pulse oximeters available online. If you are looking for similar premium products to keep your health in check, take a look at our list of the best ECG monitors you can purchase for home use.  

How Does a Pulse Oximeter Work?

The principle that the device works on is the wavelength of light that goes through the blood. From here, the Pulse Oximeter analyzes this wavelength and determines how much blood has been oxygenated and de-oxygenated (The ratio between both is called oxygen saturation). Also, it measures the percentage of arterial oxygen carried in the blood known as SpO2. 

The clip part of the device is attached to the most transparent parts of the body, i.e., the ear lobe, finger, or toe, and the light source emits a broad spectrum of light. Deoxygenated blood absorbs more red light, and oxygenated blood absorbs infrared light. The receiving end calculates the wavelength of light and processes the components and provides results. 

Many factors can affect the result, such as ambient lights, the size of the individual’s finger, and the ability of the tissue to absorb light. But the device can calibrate the readings and provide a precise result. Additionally, the Heart Rate is simultaneously calculated and allows doctors to carry out a complete examination. 

Did You Know?

The pulse oximetry functions by analysing the infrared and red light absorption characteristics of oxygenated and deoxygenated haemoglobin.

Types of Pulse Oximeter 

1) Wrist Pulse Oximeters – Just like wristwatches, these are worn around the wrist and monitor the beats of a person’s pulse. They are the best choice for patients who need to be monitored by doctors throughout the day, especially during sleep. Doctors attach the probe to the patient’s finger, and it displays the result on the watch screen. These devices are very convenient. Most of them have USB connectivity and Bluetooth. 

2) Finger Pulse Oximeters – These devices are clipped on the fingers of the user and are very convenient and portable. The display screen is on the probe itself. As a result, it shows results instantly and continuously. It is usually battery operated and suitable for home use. Many doctors use them on patients as well to check blood oxygen levels. 

3) Handheld Oximeters – The biggest of the three is the handheld pulse oximeter. The device has a probe and a handheld display screen. The probe is placed on the person’s finger, and the blood oxygen levels are shown on the screen. A cable connects both parts. The results are very accurate. Because of this, the device is used in primary medical services like EMS, medical institutions, ambulances, hospitals, and other medical departments. 

Best Pulse Oximeters – Our Top 10 Recommendations

Now that you know the basics, here’s our list of the top 10 Pulse Oximeters available online:

  1. Innovo Deluxe iP900AP Fingertip Pulse Oximeter – A Sports enthusiasts best friend, This Oximeter is precise and very useful for adventure sports. It is light and convenient to carry around.
  2. Pulse Oximeter Fingertip - Saturation Oxygen Monitor Fingertip – A fingertip Pulse oximeter that works so easily with the push of a button. This device can be used for any environment.
  3. Zacurate Pro Series 500DL Fingertip Pulse Oximeter  – The Zacurate Pulse Oximeter comes with  brand quality and is a product of expert recommendations, designed to give you instant and accurate results. 
  4. Santamedical Generation 2 Fingertip Pulse Oximeter – A device that brings you reliability, convenience, and accuracy. It also provides a Heart rate reading and is very quick.
  5. Finger Pulse Oximeter, (SpO2) Blood Oxygen Saturation Monitor – With a unique pulse bar graph, this device is recommended for doctors and nurses.
  6. Facelake ® FL400 Pulse Oximeter – A device that you wouldn’t even feel when it’s on your finger and the best choice for the elderly.
  7. Santamedical SM-150BL Fingertip Pulse Oximeter – If you can send a little more, this is the best device out there with everything you need in an Oximeter. It also switches off automatically after 10 seconds. 
  8. FaceLake ® FL400 Pulse Oximeter –For instant results and the most accurate readings, Facelake’s pulse oximeter is an incredible piece of equipment. 
  9. Wellue Fingertip Pulse Oximeter – With audible and visual alerts, this easy to use device is great for medical and sports professionals. 
  10. Buyter(TM) Finger Tip Pulse Oximeter  – This Oximeter is certified by Respiratory Therapists and backed by experts from all over. This is a fingertip Pulse Oximeter with brand quality trust.

Did You Know?

A normal reading for the oxygen level ranges from 95% to 100% and anything less than 95% should get medical assistance from a doctor as soon as possible.

Best Pulse Oximeters for Sports Enthusiasts.  

1) Innovo Deluxe iP900AP Fingertip Pulse Oximeter

If you like skiing and mountain climbing, then this is the best Oximeter for you. This device can measure the oxygen level in your blood and warn you when the pulse rate drops. This easy to use tool for adventure sports has a slide open battery slot which comes in handy when you want to change batteries quickly. Make sure you only use the digital oxygen sensor before and after working out. If this product interests you, we recommend taking a look at our list of the best nebulizers available online and improving your home medical equipment. 


  • The device is reliable and durable. It has consistent monitoring and provides accurate readings. 
  • It can tell you if the SpO2 and pulse rate is in order. Also, the device can easily be used on your finger and is excellent for doctors and nurses. 
  • The device has an alarm and beeps when it detects the pulse. It has adjustable brightness and is excellent for sports, especially high altitude adventure sports. 


  • The device is very small. Make sure you not moving while using the device. 

Innovo Deluxe iP900AP Fingertip Pulse Oximeter with Plethysmograph and Perfusion Index (Off-White with Black)
14,836 Reviews
Innovo Deluxe iP900AP Fingertip Pulse Oximeter with Plethysmograph and Perfusion Index (Off-White with Black)
  • ACCURATE AND RELIABLE - Consistently beat other pulse oximeter in terms of accuracy and reliability during clinical tests.
  • PLETHYMOSGRAPH AND PERFUSION INDEX - Tells you if you are taking your SpO2 and Pulse Rate properly. No more second guessing if the readings are reliable or why...
  • UPGRADED HARDWARE AND SOFTWARE – Improved with internal hardware and software upgrades that boost performance. The latest version of the iP900AP model...
  • SPORT ENTHUSIASTS - Suitable for mountain climbers, skiers, bikers, aviators or anyone interested in measuring their SpO2 and pulse rate while on the move.You...
  • READY TO USE OUT OF THE BOX - Include 2X AAA BATTERIES and a LANYARD for convenience.

Best Finger Tip Pulse Oximeters for Quick Reading

2) Pulse Oximeter Fingertip – Saturation Oxygen Monitor Fingertip (SpO2) for Adults

If you can spend and you want to get a quick reading, this blood oxygen monitor is the best device online. Suitable for all kinds of environments, the device has a large screen and displays the readings accurately. Both sports enthusiasts and health care professionals can use the tool and expect great results. The device is hardly 50g in weight. It requires two AAA batteries and provides 24 hours of readings. If you are a medical professional look for similar products, take a look at this article on the best medical gloves you can purchase online. 


  • The alarm is substantially louder than ordinary devices. The device is suitable for children and adults. 
  • This Oximeter monitors your blood oxygen levels quickly and efficiently. Additionally, the device measures pulse strength in 10 seconds flat. 
  • The device has a large LED screen. 
  • The tool is easy to use. It has a single button to turn off and on. It also has an automatic shut off feature. 
  • The device is specific to sports enthusiasts. 


  • Clean your finger thoroughly before using the device

Pulse Oximeter Fingertip - Saturation Oxygen Monitor Fingertip (SpO2) for Adults - Finger Pulse Oximeter for Heart Rate Measurements - Portable Oxygen Meter - Oximetro with Batteries
  • ACCURATE AND RELIABLE - InvoSpa's oxygen saturation monitor will determine your SpO2, Pulse Rate and Pulse Strength results in 10 seconds or less displayed on...
  • SPORT ENTHUSIASTS - This oxygen monitor fingertip is suitable for mountain climbers, skiers, bikers, aviators or anyone interested in measuring their SpO2 and...
  • PORTABLE AND LIGHTWEIGHT - This oximeter finger with pulse is weighing only 50 grams, and comes with a lanyard so its easy carried on its own or inside your gym...
  • READY TO USE OUT OF THE BOX - Fingertip Pulse Oximeter device, 2 AAA Batteries, User manual & a Lanyard for your convenience.
  • LOW POWER CONSUMPTION - Equipped with two AAA batteries, the finger pulse oximeter fingertip automatically powers off when not in use and delivers up to 24...

Best Pulse Oximeters for Respiratory Therapists

3) Buyter(TM) Finger Tip Pulse Oximeter and Blood Oxygen Saturation Monitor with Lanyard Color in Random 

If certification is everything, this device is number one on the list of pulse oximeters. Not only is this device safe, but it provides an accurate reading every single time. Nurses, doctors and even respiratory therapists prefer to use the Buyter Fingertip pulse Oximeter because of its reliability and brand quality. If you are looking for more premium medical products and money is not a limitation, take a look at our list of the most expensive hearing aids available. 


  • This Oximeter is a useful device for asthma patients and provides a precise reading. 
  • The device is light and requires AAA batteries to operate. 
  • You can use this tool for sports and other activities. 
  • Registered respiratory therapists have certified the device. 
  • The device can be used for children and adults. 


  • The device does not come with batteries. 
  • The reading will not be accurate if you have nail polish. 

Buyter Finger Tip Pulse Oximeter, Heart Rate Monitor+ Blood Oxygen Saturation Monitor with Led Display SPO2 Pulse Oximeter - Portable Pulse Oximeter Blue with Lanyard
  • ✔Track your health: Our SPO2 Sensor will spot check and display in real-time SpO2, PR which great for checking your pulse signal strength, help you a better...
  • ✔Easy to use with High Accuracy: The Buyter SpO2 Pulse Oximeter is easy to use by one button, and the Range:0%-100% with Accuracy ±2%
  • ✔Quick Reading: Once measured,the LED Pulse Oximeter will display the Pluse rate, heart rate and Blood Oxygen Saturation(SpO2)in 8 seconds
  • ✔Suitable for all ages: Our oxygen saturation finger monitor can be used as a pediatric pulse oximeter for kids and children as well as a blood oxygen monitor...
  • ✔Tips: The oximeter is intended to check blood oxygen saturation level at home, sports or aviation use. Not for medical use, great for mountain climbers,...

Best Pulse Oximeter for Sleep Apnea

4) Zacurate Pro Series 500DL Fingertip Pulse Oximeter

When it comes to reliability, Zacurate Oximeters are never a disappointment. The device has a blood oxygen monitors and reads the pulse rate accurately. Additionally, the device has all the essentials, including a bright screen, a suitable finger grip, and is very convenient to carry around. It is an excellent choice for sports enthusiasts and respiratory therapists. Similarly, it is excellent for doctors and nurses as well. It also comes with a handy cord to keep it from getting lost. If you are looking for more products to help improve your medical equipment at home, start with our list of the best tens units available online. 


  • The device has a super bright LED screen. You can view the result in any environment. 
  • You can easily use the device by clipping it on your finger. 
  • The device shows accurate results.
  • This is an excellent tool for sports enthusiasts. 
  • The Oximeterter is small and convenient to carry. 
  • There is an anti-loss strap attached to the probe, which keeps it with you all the time. 


  • The device does not come with batteries. 

Zacurate Pro Series 500DL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicon Cover, Batteries and Lanyard (Royal Black)
  • ACCURATE AND RELIABLE - Accurately determine your SpO2 (blood oxygen saturation levels), pulse rate and pulse strength in 10 seconds and display it conveniently...
  • FULL SPO2 VALUE - The ONLY LED pulse oximeter that can read and display up to 100% for SpO2.
  • SPORT/HEALTH ENTHUSIASTS - For sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. SpO2 and...
  • ACCOMODATES WIDE RANGE OF FINGER SIZES - Finger chamber with SMART Spring System. Works for ages 12 and above.
  • LOADED WITH ACCESSORIES - Include 2X AAA BATTERIES that will allow the pulse oximeter to be used right out of the box, a SILICON COVER to protect your pulse...

Best Pulse Oximeters for Nurses

5) Santamedical Generation 2 Fingertip Pulse Oximeter

When the brand offers you a money-back guarantee, you know the product is right. Santamedical’s Pulse Oximeter is a one of a kind blood oxygen monitor and has a single OLED screen which works in any lighting. The device is accurate, durable, and just 10.6 ounces. It also has a rotating display which is great for nurses. If you are looking for similar quality products, take a look at our list of the top ankle braces available. 


  • Automatic power-off in 10 seconds. 
  • The measurement is precise and fast. So fast, that it takes only 6 seconds to get a reading. 
  • Readings appear is four different directions.  
  • The Oximeterter uses AAA batteries and runs for 30 hours.
  • One year warranty


  • The device does not have an alarm system. 

Santamedical Generation 2 Fingertip Pulse Oximeter Oximetry Blood Oxygen Saturation Monitor with Batteries and Lanyard
  • VERY ACCURATE READINGS - Our pulse oximeter has been clinically tested and consistently beat other pulse oximeter in terms of accuracy and reliability, it is...
  • FAST AND EASY OXIMETER READINGS - Taking your oxygen and pulse readings with this digital oximeter is as simple as pressing a button. It uses patented...
  • BRIGHT & COMPACT - Bright OLED display allows clear reading in dark, inside home or in bright sunlight. Oxygen saturation monitor shows real time Pulse Rate,...
  • LIGHT, COMPACT & LONG BATTERY LIFE- Light and compact, accommodates wide range of finger sizes, long battery life, automatic power off after 10 seconds.
  • You Get: Fingertip Pulse Oximeter, Neck/Wrist Cord, User Manual, 2-AAA Batteries, plus our no-hassle 1 year warranty and friendly customer service.

Best Pulse Oximeter for Overnight Monitoring

6) Finger Pulse Oximeter, (SpO2) Blood Oxygen Saturation Monitor

Super light and super accurate are two ways to describe the Santamedical Oximeter. This device comes with batteries and is convenient to carry around because it fits in your pocket. You can record readings from the large HD screen, and it has a pulse rate reading of 30bpm-250bpm give or take ±1%. Another product much like this pulse oximeter is the back brace. If you are looking for the best back braces for lower or upper back pain, click on this link!


  • The device is very light, with a weight of just 50g. 
  • It operates on 2 AAA7 batteries.
  • An OLED display on the top provides a sharp display of the readings. 
  • It is suitable for being used in crowded places. 
  • The device is sweat and dustproof. It is also very durable and can be used by anyone. 
  • The readings for blood saturation are withing the range of 36%-99% give or take ±2%.


  • The device is not suitable for children. 
  • Though it is tiny in size, it is easy to misplace. 

Finger Pulse Oximeter, (SpO2) Blood Oxygen Saturation Monitor with Pulse Rate Measurements and Pulse Bar Graph, Digital Reading LED Display
  • VERY ACCURATE READINGS - Our pulse oximeter has been clinically tested and consistently beat other pulse oximeter in terms of accuracy and reliability, it is...
  • SUITABLE FOR ALL AGES - This device allows for almost all size of fingers from children to adults due to the finger chamber design.
  • SPORTS ENTHUSIASTS - Intended for sport and aviation use. This device is ideal for using during high endurance and outdoor sports such as mountain climbing,...
  • Oxygen saturation monitor shows real time Pulse Rate, Pulse Rate Bar and SpO2 level. Light Weight, Easy to carry & Accommodates wide range of finger sizes.
  • LOADED WITH ACCESSORIES - Package includes 2-AAA Batteries to power up the Pulse Oximeter, Neck/Wrist Cord, User Manual, plus no-hassle 1 year warranty and...

Best Pulse Oximeter for Doctors

7) Facelake ® FL400 Pulse Oximeter

Doctors need a Pulse oximeter that can run for a long time. The Nonin 8500 can handle 100 hours of uninterrupted measuring and give you accurate readings. Besides this, the device is very portable, and it comes with a sensor. The light device offers a bright screen and a one year warranty so you can use it hassle-free. Similar to this product, for sports professionals, we recommend going through our list of the best knee braces available online. 


  • The device is known for its portability and durability. 
  • It is quick and provides continuous readings. 
  • It operates with just three buttons and has a bright LED display. 
  • There is a three-year warranty along with the product. 
  • Efficient in any environment – sports or medical use. 


  • Not suitable for sports

FaceLake ® FL400 Pulse Oximeter Fingertip with Carrying Case, Batteries, Lanyard, and Warranty (Blue)
  • ACCURATE SPO2: Determine your blood oxygen saturation levels (SPO2) and pulse rate.
  • SPORT/HEALTH ENTHUSIASTS : For enthusiast runners, bikers, swimmers, and others looking to monitor their SPO2 and pulse rate on the go.
  • EASY TO USE: Simple fingertip insert with results in under 10 seconds on a large LED display.
  • FREE ACCESSORIES: Includes 2x AAA batteries, nylon carrying case, lanyard, and user manual.
  • 1 YEAR WARRANTY: Every pulse oximeter is inspected, warrantied, and serviced by our US based support team available in Illinois by phone and e-mail.

Best Pulse Oximeters for Home Use

8) Nonin PalmSat 2500 Handheld Pulse Oximeter with Alarms – Large Soft Sensor 3ft (Finger/Toe Thickness .5 to 1 in) 8000SL

Nonin once again takes the cake with this handheld Pulse Oximeter being easy to use and convenient for home use. It can record 72 hours of readings which can help while a doctor is examining the patient. It is a simple device with two operating buttons. If you are looking for premium products similar to this one, take a look at our list of the most expensive first-aid kits money can buy!


  • The device has a loud alarm for alerting warnings.
  • It comes with 72 hours of data storage which is very useful for doctors and other medical personnel. 
  • The device weighs just 7.5 ounces.
  • The battery life ranges from 40-100 hours
  • The device comes with a charger stand and requires AA batteries. 
  • Forty hours of storage memory. 
  • Three-year warranty. 


  • The device is too bulky for sports, especially if you are running or climbing
  • The batteries are not included in the device. 

Nonin PalmSat 2500 Handheld Pulse Oximeter with Alarms - Large Soft Sensor 3ft (Finger/Toe Thickness .5 to 1 in) 8000SL
  • Nonin PalmSat 2500 Handheld Pulse Oximeter with Alarms - Large Soft Sensor 3ft (Finger/Toe thickness .5 to 1 in) 8000SL
  • Made in the USA and Backed by Nonin's superior 3 year warranty
  • Loud 75 decibel Alarms can be set for Oximeter or Pulse rate
  • Powerful — 72 hours data storage
  • Simple — easy two-button operation

Best Wrist Pulse Oximeter

9) BodiMetrics O2 Vibe Sleep & Fitness Monitor – Oxygen & Heart Rate Recorder – Wearable Health & Activity Tracker 

Being a device that you can wear on your wrist, the Bodimetrics O2 is a great monitor for sleep and fitness. This is because it is convenient and has a thumb clip. The readings are very accurate, and the device is very light. Additionally, it is compatible with Android and IOS, and it is excellent to keep you in check with your fitness goals. Another great product to help you improve your health is the posture corrector, and we have listed the best posture correctors you can find on the internet. 


  • This device is very light and one of the best tools in the market. 
  • The SpO2 monitor is comfortable to use, and Bodimetrics has a patent over the thumb sensor. 
  • ThOximeterter can measure track steps pulse rate and has a digital clock to display time. 
  • The monitor vibrates when your pulse rate drops below the threshold while exercising. 
  • The device is recommended for sleep apnea and recording pulse rate during sleep.

BodiMetrics O2 Vibe Sleep & Fitness Monitor - Oxygen & Heart Rate Recorder - Wearable Health & Activity Tracker
  • - Lightest and smallest SpO2 monitor on the market; Comfortable (patent pending) thumb sensor frees your finger, unlike any other pulse oximeter on the market;...
  • - The monitor has 5 vibration settings to remind you if your SpO2 drops below the threshold you set (80-95%) while exercising.
  • - Track SpO2 while exercising to maximize fitness regimens; monitor will remind you to keep moving throughout the day to reach your step goals
  • - Compatible with Android and iOS devices; Download the free O2 Vibe mobile app on your devices and sync it with your monitor
  • - Comes with everything you need; O2 Vibe device, 1 ring sensor, 1 USB charging cable, 1 quick start guide

Best Pediatric Pulse Oximeter

10) Santamedical SM-150BL Fingertip Pulse Oximeter

Santamedical’s finger pulse oximeter is a great device to use for kids because of the lively colours and ease of use. The tool has an LED display and provides a reading in any lightings. Additionally, it has an indicator for low voltage and a PI indicator. We recommend this product for sports personnel as it can help immediately determine the pulse rate and provide insights on how your body is performing. 

Similarly, we have listed more products to help sporting professional improve their performance, such as this list of the best wrist braces available online. 


  • The device is small. However, it provides a reliable and accurate reading. 
  • It is very suitable for children.
  • The device comes in a bright yellow colour which kids love.
  • There are two colours on the LED screen and three parameters which include SpO2. 
  • The Oximeter has a sound alarm and adjustable brightness. 
  • There is an alarm that sounds when the battery is low. 


  • The device is easy to carry but can get lost easily. 

Santamedical SM-150BL Fingertip Pulse Oximeter Oximetry Blood Oxygen Saturation Monitor with Carrying Case, Batteries and Lanyard
  • NEWLY UPGRADED - Measures quick and precise pulse rate and SpO2 blood oxygen saturation of arterial hemoglobin levels. It is not a Medical Device.
  • PRECISE AND RELIABLE - Quickly determine your SpO2 (blood oxygen saturation levels), Fast SpO2 readings, pulse measurements and display it conveniently on a...
  • BRIGHT & COMPACT - Light Weight, Easy to carry & Accommodates wide range of finger sizes. Bright LED display shows real time Pulse Rate, Pulse Rate Bar and SpO2...
  • LIGHT, COMPACT & LONG BATTERY LIFE- Light and compact, accommodates wide range of finger sizes, long battery life, automatic power off after 10 seconds.
  • You Get: Fingertip Pulse Oximeter, Neck/Wrist Cord, Case, User Manual, 2-AAA Batteries, plus our no-hassle 1 year warranty and friendly customer service.

What Are The Normal Ranges for Pulse Oximeter?

There are a few things to keep in mind – 

  • Firstly, consider the age of the person using the device. The device will have a different reading for old and young people. 
  • Secondly, we should keep in mind the activities in which the individual is involved, such as sports or fitness activities, etc. 
  • Lastly, the health and surroundings of the person using the device

With these in mind, the normal ranges of a human being are:

  • For Heart Rate – 60 – 100 BPM
  • Oxygen Saturation – 90-100 %

Benefits of Using a Pulse Oximeter

1) For Adventure Sports Activities – The pulse oximeter should be attached to you so it can alert you when oxygen-deprived. The high altitude activities such as mountain climbing, skydiving, hand gliding, and other related sports can lead to the lower oxygen level in the blood—the device can monitor this. 

2) COPD – If you have COPD, you need this device at all times. It is crucial to make sure your lungs are providing enough oxygen to your body. And this device can help monitor the same. It helps doctors get alerts for patients that need medication and is a great way to monitor their SpO2 Levels. 

3) Asthma – Patients can get alerted before the attack takes place and keep their inhaler ready. 

4) Sleep Apnea – The device can monitor the blood saturation level and is a great way to combat severe snoring. 

In the event of an emergency, the device can alert doctors and nurses in a hospital when there is a problem with the patient’s oxygen levels. 

Precautions and Warnings When Using Pulse Oximeters

There are no side effects of using a Pulse Oximeter. As long as the device provides an accurate reading, you are in good hands. But there are certain elements to consider, such as:

1) Dark Skin – Tests have revealed that the devices overestimate the concentration of blood oxygen. As a result, these tests have confirmed that people with darker skin tones have a different reading than people with lighter skin tones.

2) Toe and Finger Nail Paint – Paint on nails can alter the readings and cause problems for the device. In the end, the SPO2 reading may not be on point. 

3) Bright light – Sunlight or direct light falling over the device can alter the reading and disrupt the accuracy. So make sure the room is dim for accurate results. 

4) Carboxyhemoglobin – The tool cannot calculate the carbon dioxide level in the blood. Therefore, you should use gas-blood analysis to determine the spike in carbon dioxide levels in the blood. 

5) Also, Make sure the patient is not Shivering as it could result in a wrong reading. 

You should go to the emergency room if your SPO2 level is less than 80%. If the results are repeated, it may prove fatal. Make sure the device does not have any scratches or damage as it could deter the device from accurate readings. 

Buying Guide For The Best Pulse Oximeters 

Here’s our 20 point rule to purchasing the right Pulse Oximeter for you – 

Device Physical Features

  1. Battery Life – Battery life is critical in providing readings, especially for continuously monitored people. The best Pulse Oximeters have a long battery life, and this is crucial when you are travelling or using it over a long period before you can recharge the device. 
  2. Warning Systems – Three vital warning systems that your device must indicate are irregular heartbeat rate, Low SpO2, and low battery. 
  3. Durability – Cracks, scratches, and water are three things you need to make sure your OximeterOximeter can withstand. If you use the device for outdoor activities, scratches are bound to happen. Pick a strong pulse oximeter than can last long and comes with a cover. 
  4. Size – Small tools are more comfortable to carry around and are more convenient for the traveller and for people who constantly engage in sports. Thus, the size of the device is essential when you consider purchasing a pulse oximeter.
  5. Design – It’s ok to choose a device that isn’t boring. Look for fancy tools that you can take along when you go outdoor. Many sports personalities use stylish accessories while exercising or performing activities. 
  6. Lightweight – Light devices allow you to move freely without any restrictions. For sports, the lighter the equipment, the better the range of motion. Even if the patient is on a bed, a light device will not cause much of a disturbance. 
  7. Display – Make sure the screen is bright enough to read in any circumstances. The screen must also state the required components for a proper examination and give a good idea of the reading. 
  8. Warranty And Support – Make sure the company or brand you purchase offers excellent support and warranty for the product. Having instant help when you need it can be crucial at certain times.

Features That Make It The Best Pulse Oximeter

  1. Accuracy – Make sure you find a device that provides an accurate reading. This reason is important because it is the most obvious reason to buy OximeterOximeter. The Best Pulse Oximeters can give a reading as close as ±2% of the actual blood oxygen level. As a result, the reading can provide sufficient details about the blood that can help check if your SpO2 level is average or something to be of concern. 
  2. Response Time – Calculating your blood oxygen level should not take more than 10 seconds. Newer models of the device are around this corner. The best ones mostly work within the 10-second time frame. The older models take about 30 seconds, which might sound ok, but it is a bit of a wait. 
  3. Portability – A suitable pulse oximeter should tick off portability from your list. If you love travelling and are a fan of adventure sports, having the device with you at all times can prove to be useful. Find an excellent case for your device and purchase one that is the right size, which you can carry around easily. 
  4. FDA – The FDA approved devices are certified and more reliable. These devices are medical appliances and, thus, are essential. Do not ignore FDA approval. 
  5. Easy To Use – The best Pulse Oximeters are automatically activated. Once you clip them on, they start working, provide the reading, and switch off either with the push of a button or automatically. Some of them monitor for a longer time and have easy ways to set alarms, etc. 
  6. Popularity – Choose a device that has a useful review and purchased by a lot of people. And never underestimate a helpful review. Sometimes devices might be cheaper but have better functionality. A review quickly determines this factor. 


The pulse-oximeter cannot detect respiratory problems. They are used to provide short readings to determine if there are any issues with the user’s pulse rate or blood oxygen level.

Additional Features The Pulse Oximeters Must Have

  1. Alarms – Having a loud alarm in place is essential. Make sure the device is loud enough to hear from all parts of your home. This feature is not mandatory for people who use the tool for sports-related activities, but rather for older individuals who need constant care and attention. 
  2. Cost – If you pay more for your product, you can expect better and easier functions. Also, be open to spending a little more on your product as you should never think twice about purchasing health-related equipment. 
  3. Receptacle Size – Different people have different finger sizes. Because of this, you need to make sure that the one you use is more adapt to your finger. It makes it easier if you can try out the device before using it. Purchase an oximeter that is adaptable to different finger sizes to avoid the issue from arising during use. 
  4. Storage – Make sure the device can store information about earlier readings, so you have one single place to look when you need it. This feature is convenient and allows doctors to compare readings whenever necessary. 
  5. Compatibility – Purchasing a device that is compatible with other devices is another excellent point when buying your Oximeterter. Some Oximeters have Bluetooth and allow you to sync up to your smartphone. With this feature will enable you to move freely without having to look at your pulse oximeter always. 
  6. Convenience – At the end of the day, satisfaction is king, and you need a device that does the job with the least amount of effort. It is a combination of all the above points and expert’s advice. Choose the right tool from the list above and make the right choice when buying your Pulse Oximeter. 


1) Why do I need a Pulse Oximeter?

A) If you have started a heavy workout routine, or are feeling discomfort while breathing, tOximeterter is a great way to keep your heart rate in check and monitor yourself for overworking your body. The device is also great if you want to check your oxygen level in your blood and should not be ignored if you have Hypoxemia.

2) What is Hypoxemia?

A) If your blood oxygen level dips below the healthy range, it is called Hypoxemia. Because of its name, it is easily confused with Hypoxia, which means the SpO2 has fallen to a level that indicates possible death. 

3) Which finger should I use for the reading?

A) It is standard to use your middle finger. The reading is usually precise, especially if you are using one of the best pulse oximeters available. 

4) What are the risks involved when using a Pulse Oximeter?

A) There are no risks involved when using the device. But you should use a reliable tool to avoid getting an incorrect reading. 


Choosing the right device should be a lot easier with our analysis. Also, make sure you follow the guide and pick a brand that you can trust. Remember – never choose a device just because it is expensive, check the features first. 

Last updated on 2021-01-15 // Source: Amazon Affiliates