iphone 6s -- model A1633 technical question

Hello,

I am trying to determine whether my iphone 6s model A1633 will be compatible with a Japanese sim. The company selling this sim states, "You can use the Japan Unlimited SIM in any unlocked phone that supports the 3G or 4G Band 1 (2100MHz) frequency."

Tech specs for my iphone 6s are as follows. I need help interpreting whether it will work with the sim or not. Specifically, is "LTE" the same as either 3G or 4G? I have highlighted the relevant info below.

Model A1633*

LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30)

TD-LTE (Bands 38, 39, 40, 41)

TD-SCDMA 1900 (F), 2000 (A)

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

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

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

Thank you for your help.