I thought the Series 7 could make it a full day? My wife has a S6 and makes it about 36 hours with her normal usage (which is admittedly quite light).
For me, it's not a watch if it has to be charged every day or two. I need 4+ days of battery life so that I don't have to bring another charger on every overnight/weekend trip.
From what I understand, impact of radio on battery life is very real but often invisible / not thought about. Cellular really can chew through battery when the base stations are far away.
When the AirPods first came out there were a lot of reviews saying "Battery life is about 5 hours, this is just barely acceptable but it's not a problem."
And then two years later the same authors were writing articles complaining that their AirPod battery life has gotten unacceptably short as if they'd never owned anything with a non-removable battery before and had no idea it was going to happen.
Maybe I should have bought a signal booster for my office instead. I got one for my car because I would consistently drop calls in one spot; with the booster I had 5 bars the whole commute. Before COVID, anyway.
That makes me wonder - what does Apple Watch do that Mi Band doesn't that makes the time on battery so much different? I guess screen size and GPS during workout (Mi Band uses phone GPS), but other than that? (I'm not sure what other features it has, might be comparing apples to oranges, no pun intended)
> If you don’t agree to let them sell your information, then every single time you connect your watch to the phone, it automatically transfers you to settings on your phone because it wants you to alter them so they can sell your information.
[0] https://play.google.com/store/apps/details?id=com.mc.miband1