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GRT89521

macrumors regular
Apr 24, 2018
105
106
I leave it on all day. I believe the cellular radio only turns on when you seperate from your phone.
 
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Baldrake

macrumors 6502
Original poster
May 22, 2012
335
353
Great White North
Oh, great - thanks guys. I was wondering if the battery was capable of handling cell-always-on, but sounds like the OS is smart about only turning on the radio when necessary.
 

GRT89521

macrumors regular
Apr 24, 2018
105
106
Here are the three states. Connected to iPhone, lost connection with iPhone/wifi, turns on cellular. There is a fourth state of wifi but I didn’t post a picture of that.
IMG_0541.jpg
 
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ManicMarc

macrumors 6502
Jul 1, 2012
487
149
Do you guys keep your cell modem on all day, or just turn it on if you're out without your phone?

I usually leave it on all the time, as others have said the OS manages it very well.
However if I purposely go out for the evening without my phone and notice that my watch has low battery, I will selectively turn it on when I want to check messages or text someone. It’s a nice trick to extend the battery life if you don’t mind being unreachable.
 
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