Does the iPhone SE have NFC / Apple Pay?
Yes, the iPhone SE does support Apple Pay. The iPhone SE is equipped with Apple's Touch ID fingerprint sensor for using Apple Pay at retail locations and within apps. It is also capable of receiving and redeeming rewards using rewards cards. Every available iPhone model supports Apple Pay.
The iPhone SE also has NFC with reader mode and supports Express Cards. Even when the battery is dead, the iPhone SE has a power reserve feature that allows transit cards to be accessible.