Samsung SM-F721U Galaxy Z Flip 4 5G UW TD-LTE US 256GB / SM-F721A (Samsung B4) vs. Asus ZenFone 4 Pro Dual SIM TD-LTE AM ZS551KL 64GB Frequency Band Comparison

Comparison Criteria

Device 1

Device 2

Frequency Band Comparison

Select a band for more details

Frequency Band	Samsung SM-F721U Galaxy Z Flip 4 5G UW TD-LTE US 256GB / SM-F721A (Samsung B4) View device details	Asus ZenFone 4 Pro Dual SIM TD-LTE AM ZS551KL 64GB 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)	Yes	Yes
UMTS B3 (1800 MHz DCS)	No	Yes
UMTS B4 (1700/2100 MHz AWS 1)	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 B2 (1900 MHz PCS)	Yes	Yes
LTE B3 (1800 MHz +)	Yes	Yes
LTE B4 (1700/2100 MHz AWS 1)	Yes	Yes
LTE B5 (850 MHz)	Yes	Yes
LTE B7 (2600 MHz)	Yes	Yes
LTE B8 (900 MHz)	Yes	Yes
LTE B12 (700 MHz ac)	Yes	Yes
LTE B13 (700 MHz c)	Yes	No
LTE B14 (700 MHz PS)	Yes	No
LTE B17 (700 MHz bc)	No	Yes
LTE B18 (800 MHz Lower)	No	Yes
LTE B19 (800 MHz Upper)	No	Yes
LTE B20 (800 MHz DD)	Yes	Yes
LTE B25 (1900 MHz +)	Yes	No
LTE B26 (850 MHz +)	Yes	Yes
LTE B28 (700 MHz APT)	Yes	Yes
LTE B29 (700 MHz de)	Yes	Yes
LTE B30 (2300 MHz WCS)	Yes	Yes
LTE B38 (TD 2600 MHz)	Yes	Yes
LTE B39 (TD 1900 MHz +)	Yes	Yes
LTE B40 (TD 2300 MHz)	Yes	No
LTE B41 (TD 2500 MHz)	Yes	Yes
LTE B46 (TD 5900 MHz)	Yes	No
LTE B48 (TD 3600 MHz)	Yes	No
LTE B66 (1700/2100 MHz)	Yes	No
5G NR N2 (1900 MHz)	Yes	No
5G NR N5 (850 MHz)	Yes	No
5G NR N66 (1700/2100 MHz)	Yes	No
5G NR N77 (3700 MHz)	Yes	No
5G NR N260 (mmWave 39 GHz)	Yes	No