Hi Shocket. There is no problem with your hardware (watch). I have changed watch myself and the problem remains. The problem is in the software. The only way to get a descent watch is to change brand since Samsung refuses to correct the faulty code. I recommend you choose a Garmin or Suunto instead.
"I fixed it. Press both buttons on your watch till it turns OFF. Then restart the same way. Heart rate worked last night and today sleep pattern is back.
This thread is about the HRM cutting out during manually selected exercises, not while it is set to constant while not exercising. I tried that two button reboot trick and started an exercise session. It cut out just short of four minutes like it always does. The workaround is to use Endomondo or UA Record to track workouts until Samsung fixes the software.
I have the same problem. When I'm cycling and run app for cycling training, my heart are correct measure on begining, but after some time it's stop and it is constant line on the graph. It's very anoying, because after 3 km distance it shows that burn 300 kcal!
Dear Samsun when you solve this problem?
Wll Alburnus. Samsung seems to abandoned this watch. They don´t care about fixing the software and also it seemes that some major shops have stopped selling them (Media Markt for example) so my best advice to you is to dump it in the nearest garbage bin and buy another one, and NOT Samsung.