I recently had a problem during a triathlon and my doctor recommended I buy an EKG machine during training, so the Visual Beat. I checked out some video reviews and Visual Beat seemed to suit me. Why I gave 1 star - the heart rate was inaccurate. When cycling I used a Garmin watch and a bike computer. Both showed a heart rate of 150 seconds, the visual beat had a heart rate of 117. I know for a fact that I didn't have a 117 which makes this device literally useless. The app must be running in the foreground in order for it to record your EKG. . That means if you want to record your EKG for, say, 10 minutes while you're running, you can't just select the recording and put your phone in your pocket. As soon as the screen saver starts or you switch to another application, the recording stops. I had many problems connecting to the app on the go. For some reason, connecting to the app during exercise is very intermittent and frustrating, impossible to record an EKG or check your real-time heart rate. When you're at home, your device randomly syncs your data downloads. Due to sporadic connection issues, there's no real way of knowing if the device is working. The chest strap is very cheap and uncomfortable. The touchpads on the strap are made of plastic and itch when running. What did I like about it? It came in a nice box.
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