MagSafe
Apple magnetic charging + accessory standard.
MagSafe (the iPhone version, distinct from the original MacBook power connector) uses an array of magnets to align Qi-compatible wireless chargers, cases, and accessories on the back of the phone. Charging: 25W on iPhone 17 Pro at peak. Accessory ecosystem: PopSockets, wallets, mounts, even external batteries — all snap on without adhesives.