https://www.g2a.com/r/tarantulo – Buy Steam games way cheaper here. I always buy all my games there 🙂
After a couple of weeks with my IWOWNFIT I6 PRO Smart Wristband Heart Rate Monitor IP67 Smart Bracelet Fitness Tracker for Andriod 4.4.
I can safely say, that you should take heart rate monitoring with a grain of salt. For some of these it will work properly (my friends one does work) but for some reason my watch does not detect heart rate properly. As you can see in the charts on the phone 140 bpm is not normal 🙂
Also got a refund from a seller for this watch for 5$.
In other ways the watch is quite good.