About AliveCor
AliveCor is a Mountain View, California medical device and AI company founded in 2011 by cardiologist Dr. David Albert, the former chief clinical scientist of cardiology at GE Healthcare. Its Kardia product line turns a smartphone into a clinical-grade electrocardiogram: the original KardiaMobile records a single-lead ECG in 30 seconds through two finger electrodes, the KardiaMobile 6L adds Bluetooth connectivity and six simultaneous lead vectors for the diagnostic detail cardiologists increasingly request, and the KardiaMobile Card shrinks the same platform to the exact dimensions of a credit card. AliveCor also sells the Kardia 12L, a portable 12-lead system built for clinics and research use. Each consumer device carries FDA clearance: the KardiaMobile in 2012, the KardiaMobile 6L in 2019 as the first six-lead personal ECG device ever cleared, and the KardiaMobile Card in 2021 as the first credit-card-sized personal ECG.
The Kardia algorithm behind these devices has the deepest published clinical record of any consumer ECG platform we reviewed. A National Institute for Health and Care Excellence (NICE) review spanning four independent peer-reviewed studies put AliveCor's AFib-detection algorithm at 92 to 99 percent sensitivity and 92 to 98 percent specificity per recorded ECG, with the Cleveland Clinic's own published evaluation and the PEAK-AF study reaching similar figures. That validation history is why the platform is recognized inside cardiology practices as a legitimate remote-monitoring input, not just a consumer gadget. On Amazon, the flagship KardiaMobile has accumulated more than 67,000 verified customer reviews at a 4.7-star average, the largest real-world review base of any device in the home ECG category.
Brand website: alivecor.com
What AliveCor makes
AliveCor's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
KardiaMobile
1-lead personal ECG, smartphone-connected, FDA-cleared 2012 — the flagship device — featured on BestRatedDocs
KardiaMobile 6L
6-lead personal ECG over Bluetooth, FDA-cleared 2019 as the first six-lead device of its kind — featured on BestRatedDocs
KardiaMobile Card
credit-card-sized 1-lead ECG, FDA-cleared 2021 as the first of its kind — featured on BestRatedDocs
Kardia 12L
portable 12-lead ECG system for clinics and research use
Kardia app
free companion app for recording, storing, and sharing ECG results
KardiaCare
subscription service adding AI-detected rhythm classifications beyond normal/possible AFib
Why we recognized AliveCor
The BestRatedDocs Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our category reviews. AliveCor earned it on the strength of the products below, evaluated the same way every product on this site is: assessed against clinical criteria, verified specifications, and real-world user outcomes, and judged on merit.
AliveCor products we rated highly
KardiaMobile Personal EKG Monitor
FDA-cleared with published AFib detection accuracy independent studies place above 93 percent, and backed by more than 67,000 Amazon reviews at 4.7 stars, the deepest real-world validation of any device in our roundup. At 18 grams with a CR2016 battery lasting about a year, it records a shareable single-lead ECG in 30 seconds with no mandatory subscription.
Read the 7 Best Home ECG Monitors of 2026 guide →
KardiaMobile 6L Personal EKG Monitor
Six simultaneous lead vectors (I, II, III, aVR, aVL, aVF) give cardiologists the spatial detail a single-lead trace cannot show, and Bluetooth connectivity replaces the standard model's microphone-based link, removing the interference that affects ultrasonic pairing in loud rooms or with hearing aids.
Read the 7 Best Home ECG Monitors of 2026 guide →
KardiaMobile Card Personal EKG Monitor
The first FDA-cleared credit-card-sized ECG, at 7.4 grams and exact wallet dimensions with a non-rechargeable battery rated for roughly two years of use. It runs the same validated Kardia algorithm as the rest of the lineup, detecting AFib, bradycardia, tachycardia, and three additional arrhythmia types over Bluetooth.
Read the 7 Best Home ECG Monitors of 2026 guide →What earned AliveCor the recognition
- Three separate Kardia devices earned places among our top picks in our home ECG monitor coverage, breadth built on a common validated platform rather than a single product.
- A clearance history that leads the category: the KardiaMobile in 2012, the KardiaMobile 6L in 2019 as the first six-lead personal ECG device the FDA ever cleared, and the KardiaMobile Card in 2021 as the first credit-card-sized personal ECG.
- The deepest independently published clinical record of any consumer ECG platform, with a NICE review of four peer-reviewed studies putting the Kardia algorithm at 92 to 99 percent sensitivity for AFib detection.
- More than 67,000 verified Amazon reviews at a 4.7-star average on the flagship KardiaMobile, the largest real-world review base of any device in our roundup.
- Founded in 2011 by cardiologist Dr. David Albert, former chief clinical scientist of cardiology at GE Healthcare, giving the platform clinical pedigree from its origin rather than a later medical partnership.