MIL-STD-810H compliant*
50m water resistant (IP68)
ECG certified
Blood pressure monitor
Compatible with standard 20mm straps
*does not guarantee ruggedness or use in extreme conditions
none of that happens here so far thankfully... second day since I updated it, watch is even better than before, passed like 30 hours since last charging it, and battery is still 55%, and the watch is on my hand 24/7 with some activities in between