Hi! I reported the same issue (iOS 14) and Wyze Support told me to change Location services to “Always” and to have it on ( I particularly do not like that, but OK, had to check if this was the reason).
After trying this for 4 days, the connectivity problems persist : band keeps disconnecting (4-5 times a day), having the cellphone with me all the time , Bluetooth always on, location services always on, and of course Wyze app in the background. Besides, I’ve performed a couple of factory resets and issues were still there. Bluetooth range is worse than in Mi Band 4 .
The problem is not the disconnection itself (unpleasant, though), but the fact that it does not reconnect automatically: I have to go to the app and manually sync to recover the connection.
Besides, I’ve noticed something strange: many times, the “no bluetooth” icon appears in the band, but I still receive notifications from my phone (meaning there still is a connection); nevertheless, I can’t use Alexa or other features.
Although I’ve been using the band for a month or less, I “have the feeling” that the connection issues appeared with the latest band firmware/Wyze app update.
Other issue: using the activity tracking mode, 1/3 of the times the band does not record my heart rate. This seems to be happening randomly, since one day I did a 2-hours routine and divided it into several tracking sessions with my Band, and it was in the second one (unfortunately the longest one) where my heart rate was not tracked. Of course, I did not change any configuration at all, just started and finished several “free training” tracking sessions in a row.
Hope it helps to see what’s going on. If there’s anything you can’t understand due to my (basic) English, please tell me!!