Samsung Galaxy S21 Ultra 5G Bands

2G B2 (1900), B3 (1800), B5 (850), B8 (900)
3G B1 (2100), B2 (1900), B4 (1700/2100), B5 (850), B8 (900)
4G B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100), B5 (850), B7 (2600), B8 (900), B12 (700), B13 (700), B14 (700), B18 (800), B19 (800), B20 (800), B25 (1900), B26 (850), B28 (700), B29 (700), B30 (2300), B34 (2000), B38 (2600), B39 (1900), B40 (2300), B41 (2500), B46 (5200), B48 (3800), B66 (1700/2100), B71 (600)
5G N1 (2100), N2 (1900), N3 (1800), N5 (850), N7 (2600), N8 (900), N28 (700), N40 (2300), N41 (2500), N66 (1700), N71 (600), N77 (3700), N78 (3500), N79 (4700), N260 (39GHz), N261 (28GHz)

Coverage in Trinidad and Tobago

2G B2 (1900)B3 (1800)B5 (850)
3G B2 (1900)B5 (850)
4G B2 (1900)
5G No

Operators of Trinidad and Tobago

2G 3G 4G 5G
Digicel B2 (1900)B5 (850) B2 (1900)B5 (850) B2 (1900) No
Bmobile B3 (1800) B2 (1900)B5 (850) B2 (1900) No