BBK Vivo Y21s 2021 Premium Edition Dual SIM TD-LTE VN V3 V2110 (BBK V2109) vs. Oppo A57 5G 2022 Standard Edition Dual SIM TD-LTE CN 128GB PFTM20 Frequency Band Comparison

Comparison Criteria

Device 1

Device 2

Frequency Band Comparison

Select a band for more details

Frequency Band	BBK Vivo Y21s 2021 Premium Edition Dual SIM TD-LTE VN V3 V2110 (BBK V2109) View device details	Oppo A57 5G 2022 Standard Edition Dual SIM TD-LTE CN 128GB PFTM20 View device details
GSM 850 MHz	Yes	Yes
GSM 900 MHz (E-GSM)	Yes	Yes
GSM 1800 MHz (DCS)	Yes	Yes
GSM 1900 MHz (PCS)	Yes	Yes
UMTS B1 (2100 MHz)	Yes	Yes
UMTS B2 (1900 MHz PCS)	No	Yes
UMTS B5 (850 MHz)	Yes	Yes
UMTS B6 (850 MHz Japan)	No	Yes
UMTS B8 (900 MHz GSM)	Yes	Yes
UMTS B19 (800 MHz Japan)	No	Yes
LTE B1 (2100 MHz)	Yes	Yes
LTE B3 (1800 MHz +)	Yes	Yes
LTE B5 (850 MHz)	Yes	Yes
LTE B7 (2600 MHz)	Yes	Yes
LTE B8 (900 MHz)	Yes	Yes
LTE B20 (800 MHz DD)	Yes	No
LTE B28 (700 MHz APT)	No	Yes
LTE B34 (TD 2000 MHz)	No	Yes
LTE B38 (TD 2600 MHz)	Yes	Yes
LTE B39 (TD 1900 MHz +)	Yes	Yes
LTE B40 (TD 2300 MHz)	Yes	Yes
LTE B41 (TD 2500 MHz)	Yes	Yes
CDMA BC0 (800 MHz)	No	Yes
5G NR N1 (2100 MHz)	No	Yes
5G NR N5 (850 MHz)	No	Yes
5G NR N8 (900 MHz)	No	Yes
5G NR N28 (700 MHz)	No	Yes
5G NR N41 (2500 MHz)	No	Yes
5G NR N77 (3700 MHz)	No	Yes
5G NR N78 (3500 MHz)	No	Yes