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 Denmark

2G B3 (1800)B8 (900)
3G B1 (2100)B8 (900)
4G B3 (1800)B7 (2600)B20 (800)
5G No

Operators of Denmark

2G 3G 4G 5G
TDC B3 (1800)B8 (900) B1 (2100)B8 (900) B3 (1800)B7 (2600)B20 (800) No
Telenor B3 (1800)B8 (900) B1 (2100)B8 (900) B3 (1800)B7 (2600)B20 (800) No
Telia B3 (1800)B8 (900) B1 (2100)B8 (900) B3 (1800)B7 (2600) No
Tre No B1 (2100)B8 (900) B3 (1800)B7 (2600) No