Is there a watch you like that works with GrapheneOS? I use a Garmin Instinct Solar. Lock down permissions and turn off unnecessary features and one charge lasts about 30 days.
Discussion
I’m old school 😁 
casio calculator watch is peak
I bet nostr:npub1az9xj85cmxv8e9j9y80lvqp97crsqdu2fpu3srwthd99qfu9qsgstam8y8 would make better 😄
Why wouldn't your Garmin work with graphene?
It does work. I was speaking highly of it and wondering if others used different smart watches with GrapheneOS.
Got you, was just curious if you had issues.
are they paired via app or Bloututh?
An app you install and always on Bluetooth for notifications and passing GPS data to the phone if you allow it. I originally got it because I wanted waterproof and notifications on my wrist when I wanted them. It has ended up being the best watch I have ever owned. In my opinion, the perfect balance of low / high tech.
And all of the features computable with graphene right ?
Yes, through the Garmin Connect App. The cool thing about GrapheneOS is you can deny the app whatever permissions you don't want it to have or grant permissions only when you are using the feature. The GPS in the watch is a passive receiver, but obviously the app can call the mothership if you let it use the network permission.
Adjacent question, since you gents obviously like to keep your data away from the big tech conglomerates:
What, if anything, are you using for health and fitness tracking with your smart watches? Anything that can back data up to a self-hosted server?
I have not explored this. Garmin can track it, but it goes to big tech cloud.