BBK Vivo Y15A Dual SIM TD-LTE V2 VN 64GB V2134 (BBK V2134) vs. Samsung SM-F721U Galaxy Z Flip 4 5G UW TD-LTE US 128GB / SM-F721V (Samsung B4) Frequency Band Comparison

Comparison Criteria

Device 1

Device 2

Frequency Band Comparison

Select a band for more details

Frequency Band	BBK Vivo Y15A Dual SIM TD-LTE V2 VN 64GB V2134 (BBK V2134) View device details	Samsung SM-F721U Galaxy Z Flip 4 5G UW TD-LTE US 128GB / SM-F721V (Samsung B4) 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)	No	Yes
UMTS B1 (2100 MHz)	Yes	Yes
UMTS B2 (1900 MHz PCS)	No	Yes
UMTS B5 (850 MHz)	Yes	Yes
UMTS B8 (900 MHz GSM)	Yes	Yes
LTE B1 (2100 MHz)	Yes	Yes
LTE B2 (1900 MHz PCS)	No	Yes
LTE B3 (1800 MHz +)	Yes	Yes
LTE B4 (1700/2100 MHz AWS 1)	No	Yes
LTE B5 (850 MHz)	Yes	Yes
LTE B7 (2600 MHz)	Yes	Yes
LTE B8 (900 MHz)	Yes	Yes
LTE B12 (700 MHz ac)	No	Yes
LTE B13 (700 MHz c)	No	Yes
LTE B18 (800 MHz Lower)	No	Yes
LTE B19 (800 MHz Upper)	No	Yes
LTE B20 (800 MHz DD)	Yes	Yes
LTE B26 (850 MHz +)	No	Yes
LTE B28 (700 MHz APT)	No	Yes
LTE B38 (TD 2600 MHz)	Yes	Yes
LTE B39 (TD 1900 MHz +)	No	Yes
LTE B40 (TD 2300 MHz)	Yes	Yes
LTE B41 (TD 2500 MHz)	Yes	Yes
LTE B48 (TD 3600 MHz)	No	Yes
LTE B66 (1700/2100 MHz)	No	Yes
5G NR N2 (1900 MHz)	No	Yes
5G NR N5 (850 MHz)	No	Yes
5G NR N48 (3600 MHz)	No	Yes
5G NR N66 (1700/2100 MHz)	No	Yes
5G NR N77 (3700 MHz)	No	Yes
5G NR N78 (3500 MHz)	No	Yes
5G NR N257 (mmWave 28 GHz)	No	Yes
5G NR N260 (mmWave 39 GHz)	No	Yes
5G NR N261 (mmWave 28 GHz)	No	Yes