Biggest crap ever!
1st day - not great but OK. 1st night - didn’t pick up the sleeping data. 2nd day - didn’t record my exercise session. 2nd evening - app crashed straight away without opening (like 10 times at least). I deleted and downloaded the app again and it didn’t even find my bracelet, let alone connecting to it. Although my phone actually showed that the bracelet was connected through BT. If I could, I would give it minus 3 stars for the frustration it put me through and the time it stole from me.