Apple's iPhone 13 has Wi-Fi 6 with MIMO and Bluetooth 5.0, but the iPhone 14 has Bluetooth 5.3.

Apple claims the iPhone 13 can play local video for 19 hours. The iPhone 14 can play local video for 20 hours, streamed video for 16 hours, and audio for 80 hours. 

Emergency SOS via Satellite sends a message from your iPhone 14 via satellite. The messages take less than 15 seconds to send in the U.S. and Canada.

Design is very similar, but the 14 is a bit thicker, so cases for the 13 won't fit.

iPhone 14 vs iPhone 13