Apple Watch Edition Series 7 45mm Global TD-LTE A2478 (Apple Watch 6,9) vs. BBK iQOO U3x Normal 2021 Premium Edition Dual SIM TD-LTE CN V2143A (BBK V2143) Frequency Band Comparison

Comparison Criteria

Device 1

Device 2

Frequency Band Comparison

Select a band for more details

Frequency Band	Apple Watch Edition Series 7 45mm Global TD-LTE A2478 (Apple Watch 6,9) View device details	BBK iQOO U3x Normal 2021 Premium Edition Dual SIM TD-LTE CN V2143A (BBK V2143) View device details
GSM 850 MHz	No	Yes
GSM 900 MHz (E-GSM)	No	Yes
GSM 1800 MHz (DCS)	No	Yes
UMTS B1 (2100 MHz)	Yes	Yes
UMTS B2 (1900 MHz PCS)	Yes	No
UMTS B4 (1700/2100 MHz AWS 1)	Yes	No
UMTS B5 (850 MHz)	Yes	Yes
UMTS B8 (900 MHz GSM)	Yes	Yes
UMTS B34 (TD 2000 MHz)	No	Yes
UMTS B39 (TD 1900 MHz +)	No	Yes
LTE B1 (2100 MHz)	Yes	Yes
LTE B2 (1900 MHz PCS)	Yes	No
LTE B3 (1800 MHz +)	Yes	Yes
LTE B4 (1700/2100 MHz AWS 1)	Yes	No
LTE B5 (850 MHz)	Yes	Yes
LTE B7 (2600 MHz)	Yes	No
LTE B8 (900 MHz)	Yes	Yes
LTE B18 (800 MHz Lower)	Yes	No
LTE B19 (800 MHz Upper)	Yes	No
LTE B20 (800 MHz DD)	Yes	No
LTE B25 (1900 MHz +)	Yes	No
LTE B26 (850 MHz +)	Yes	No
LTE B28 (700 MHz APT)	Yes	No
LTE B34 (TD 2000 MHz)	No	Yes
LTE B38 (TD 2600 MHz)	No	Yes
LTE B39 (TD 1900 MHz +)	Yes	Yes
LTE B40 (TD 2300 MHz)	Yes	Yes
LTE B41 (TD 2500 MHz)	Yes	Yes
LTE B66 (1700/2100 MHz)	Yes	No
CDMA BC0 (800 MHz)	No	Yes