- The gadget is really class. It monitors a bunch of indicators (advertising has it all) - very informative and accurate. Oxygen measures accurately (we hold it correctly on the wrist). The functionality is much cooler than Garmin and others for a lot of money. Synchronization with a smartphone is the easiest. And just 117 training modes! Tracking monitoring - accurate! An extra step - does not count (for sure). Everything matches the description.
- While everything is cool, they just fly . But, when all tracking indicators are turned on (this is without constant monitor backlighting), we have an autonomy of 5 days (no more), in principle, it does not bother (enough). Full charge in 1.5 hours.