Samsung SM-Z400F/DS Z4 Duos LTE is compatible with 3 out of 7 bands on Softbank (Japan). See the tables below for details.


Frequency Bands Used by Softbank (Japan)

Select a band or interface for more details

UMTS

Compatibility - 2 out of 3 bands supported
67%
Interface Name Supported by device?
UMTS B1 (2100) Yes
UMTS B8 (900 GSM) Yes
UMTS B11 (1500 Lower) No

Supported UMTS Protocols

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

LTE

Compatibility - 1 out of 4 bands supported
25%
Interface Name Supported by device?
LTE B1 (2100) Yes
LTE B8 (900) No
LTE B9 (1800) No
LTE B41 (TD 2500) No

Supported LTE Protocols

Name Generation Supported by device?
LTE 4G 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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