Samsung Galaxy S21+5G Notes Of Usage page 61

5...GHz...frequency...band...precautions
Wireless LAN (Wi-Fi ® ) function of the
product uses 5 GHz band. Using the 5.2
GHz band/5.3 GHz band wireless LAN
outdoors is prohibited by Law (except when
communicating with access point of 5.2 GHz
high-output data communication system or
relay station).
The channels used on the product are as
follows.
W52 (5.2 GHz band/36, 40, 44, 48 ch)
W53 (5.3 GHz band/52, 56, 60, 64 ch)
W56 (5.6 GHz band/100, 104, 108, 112,
116, 120, 124, 128, 132, 136, 140, 144
ch)
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Notes...on...Usage