But LineageOS, GrapheneOS, CalyxOS is open source. No need to trust airplane mode. You can look through the code and see what happens when you disable wifi, bluetooth etc. Is it actually doing that or not? With Apple though... turning off wifi is annoying because it just toggles off (til later 🤦🏻‍♂️)

This, I wouldn't trust airplane mode

That's just a software switch

expatriotic

A graphene phone is not more secure than TailsOS on an airgapped laptop to create a wallet, save the seed, then turn off the computer

bitcoin

Cold storage without a hardware wallet

A graphene phone is not more secure than TailsOS on an airgapped laptop to create a wallet, save the seed, then turn off the computer 