Which iPhone SE model# to buy?

My iPhone 5 is due for replacement. Bought it since 2012. I was with Verizon but cancelled my plan since I am traveling long term. Luckily my iPhone 5 works with all the local SIM cards so far in my travels. I'm currently traveling and won't be back in the USA until the end of the year. I don't know which wireless company I'm going with, but I want it to work withthe 4 major ones. So which iPhone SE model do I buy?

Cellular and Wireless
Model A1662*
LTE (Bands 1, 2, 3, 4, 5, 8, 12, 13, 17, 18, 19, 20, 25, 26, 29)

CDMA EV‑DO Rev. A (800, 1700/2100, 1900, 2100 MHz)

UMTS/HSPA+/DC‑HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)

GSM/EDGE (850, 900, 1800, 1900 MHz)

Model A1723*
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28)

TD‑LTE (Bands 38, 39, 40, 41)

TD‑SCDMA 1900 (F), 2000 (A)

CDMA EV‑DO Rev. A (800, 1700/2100, 1900, 2100 MHz)

UMTS/HSPA+/DC‑HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)

GSM/EDGE (850, 900, 1800, 1900 MHz)

All models
802.11a/b/g/n/ac Wi‑Fi

Bluetooth 4.2 wireless technology

NFC

 

Thanks for the replies. I'm only buying a new iPhone coz my current iPhone 5 doesn't work anymore. I was thinking a1723 model because it has more bands. i will probably end up buying the SE when I go to Japan next week. It's only $50 more than the USA price. but on average, iPhone prices outside the USA is like $200 more usually

 

Lol why is that anyways? Is that for security and safety reason? I'm imagining it's to prevent lonely middle age salarymen from taking pictures of Japanese schoolgirls on the train?

alrigh, I just googled it, hahaha, my suspicion was confirmed. Maybe I'll just buy it in Taiwan instead.