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shankar2

macrumors 65816
Original poster
Jun 7, 2009
1,020
54
Hi so I have an iphone with ios 12.1.x and s4 watch. I'm outside of USA. I bought the s4 watch from US and the ECG is working fine.

I wouldn't be upgrading to 5.2 because of ECG restrictions for now. I was wondering if I can upgrade the iphone to 12.2 ios? Does 12.2 force you to update watch os too to 5.2? Some feedback would be appreciated. Thanks!
 
No, it is the other way around. To be on the latest watch OS, you have a minimum iOS requirement. The newer iOS' are backwards compatible with older watch OS'.

I have a S4 on the latest, and when it is charging I use a S0, which is on the latest watch OS it works with (one of the 4's).
 
Thanks I’m only worried about ecg... perhaps other users here can post their own experience... I don’t want ecg functionality to be disabled
 
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