I found an article that specifies phone models and explains why[1]. It's iPhone 11 and 12 because it requires a UWB/U1 chip. This thread (via Craig Federighi)[2

I found an article that specifies phone models and explains why[1]. It's iPhone 11 and 12 because it requires a UWB/U1 chip. This thread (via Craig Federighi)[2] asserts UWB isn't the part that's used, but those phones have a newer Bluetooth chipset. [1] https://beebom.com/how-find-lost-iphone-turned-off-erased/ https://beebom.com/how-find-lost-iphone-turned-off-erased/ [2] https://www.reddit.com/r/iOSBeta/comments/otcn02/iphone_remains_findable_after_power_off_has/h6veidf/?utm_source=reddit&utm_medium=web2x&context=3 https://www.reddit.com/r/iOSBeta/comments/otcn02/iphone_rema...