App doesn't record sleep pattern correctly. Data recorded on wrong day. No reply from HiTec when emailed re this problem. Forgot password to log into device reset password which wiped two months of data. Can't get app to link to device now as I need a new log in number which the device doesn't show.
Needs improving Loses information unless you Bluetooth over to app every day. Only shows sleep for that night so you can't compare over the weeks. Would like to see a weight loss graph added to the app.
Seems to work in basic mode but no charts The app is good but cannot view charts as app hangs on blank screen. No manual only a very basic quick start guide.
All working on watch but not the app Everything works except the info for HR monitor, no data at all. Yet the green sensors pick up my HR and I can get it manually. It's a little frustrating 😕
Unreliable At first all was good but now resting heart rate is stuck to the 4th of July - perhaps it wanted it's own independence
Does not record data It worked for first few days but now loses data so cannot see what I have done in last week even though I sync it every night and can see data but gone next day.