The most obvious answer is also the most important: once you disable Find My, you cannot locate your device through Apple's network anymore. If you lose your iPhone with Find My switched off, you won't be able to check its location through the Find My app on another of your Apple devices or the iCloud site in a browser.
Find My's suite of features also includes Lost Mode, which enables you to display a custom message with your number on the screen for anyone who finds it. This won't be available once the feature is disabled, and Activation Lock will no longer protect the phone either. Because
Apple added support for digital car keys in its Wallet app with the release of iOS 14. Through the new (at the time) CarKey API, developers gained the ability to add a digital key to users' iPhone that can lock or unlock a vehicle with a tap. The feature launched on devices running iOS 14 and iOS 13 simultaneously, and Apple later introduced the ability for anyone with an iPhone or Apple Watch that has a U1 ultra-wideband chip to passively unlock or lock cars when within range.
Depending on your car, the Wallet app can unlock, lock and start your car. And if you enable what Apple calls "Expres
Apple's approach to car keys is similar to Google's and is based on the Car Connectivity Consortium's Digital Key specification. Once your phone and car are paired, a digital copy of your key is cryptographically secured on your device. Locking and unlocking a car works using your iPhone's NFC chip, just like tapping to pay. A Bluetooth connection between your smartphone and your car can remotely unlock and lock your car. Passive entry, where your phone automatically unlocks your car when you're nearby, uses Bluetooth and your phone's U1 chip to determine your location before locking your car'
Rivian At a minimum, Apple's digital car keys require an iPhone running iOS 13 with an NFC chip built in. That means you'll need to own either an iPhone XS or later or a second-generation iPhone SE or newer to use the feature.
The iPhone's digital car keys were only available on the BMW 5 Series at launch, but several major car makers have adopted the feature since. For example, you can now use digital keys on Hyundai's Tucson, Ioniq 5 and 6, as well as the Rivian R1T and R1S. Apple doesn't maintain a list of which cars support digital keys (instead directing customers to call their car manufa