Samsung SM-F721N Galaxy Z Flip 4 5G TD-LTE KR 256GB (Samsung B4) is compatible with 8 out of 11 bands on Optus (Australia). See the tables below for details.


Frequency Bands Used by Optus (Australia)

Select a band or interface for more details

UMTS

Compatibility - 1 out of 1 band supported
100%
Interface Name Supported by device?
UMTS B8 (900 MHz GSM) Yes

Supported UMTS Protocols

Name Generation Supported by device?
UMTS 3G No
HSPA+ 3.5G (4G speed) No

LTE

Compatibility - 6 out of 6 bands supported
100%
Interface Name Supported by device?
LTE B1 (2100 MHz) Yes
LTE B3 (1800 MHz +) Yes
LTE B7 (2600 MHz) Yes
LTE B8 (900 MHz) Yes
LTE B28 (700 MHz APT) Yes
LTE B40 (TD 2300 MHz) Yes

Supported LTE Protocols

Name Generation Supported by device?
LTE 4G No
LTE-A 4G No

5G NR

Compatibility - 1 out of 4 bands supported
25%
Interface Name Supported by device?
5G NR N1 (2100 MHz) No
5G NR N8 (900 MHz) No
5G NR N40 (2300 MHz) No
5G NR N78 (3500 MHz) Yes

* A matching frequency band does not guarantee coverage. There may be additional network or device software restrictions that prevent a device from connecting on a certain frequency. Additionally, certain bands may only be available regionally within a country.

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