First of all I have generation 3 with the iPhone 5s and it work perfectly ever time what a awesome tool you can email or print them and take the, with you when you got it the Dr or for a small fee you can sent it and get it reviewed I used it and I love it you can use it on your pets ! I have mine with me always now checking the whole family and friends and it will instantly tell you if you have AFib it detects its and tells you buy it use it buy the Machint from their website super fast if your in California plus its way cheaper than most websites
Mirageiv about Kardia