Reverse Wireless Charging introduces a lot of heat, and it's not by any means effective. You lose around 50%, plus it's really slow (4.5W) and you need to have the devices alligned almost perfectly for that to work.I'm going to add a few more:
- Ability to charge another iPhone without needing a USB-C cable
- USB 3.2 Gen 2 transfer speeds of up to 10Gb/s on 16/16 Plus models (special and still sold separately higher spec USB-C required), not just 16 Pro / 16 Pro Max
- Capacitive Haptic buttons
I've tried this with Galaxy S10, Note 10, Note 20 Ultra, and S23 Ultra, it's more a gimmick because the amount of energy it can share its pretty low for any usability.