Samsung SM-G991U1 Galaxy S21 5G UW Dual SIM TD-LTE US 256GB (Samsung Unbound M1) Compatibility on KDDI au (Japan) Mobile Network
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Samsung SM-G991U1 Galaxy S21 5G UW Dual SIM TD-LTE US 256GB (Samsung Unbound M1) is compatible with 4 out of 6 bands on KDDI au (Japan). See the tables below for details.
This carrier only accepts approved devices on its network.
Even if a device supports some or all of the required frequencies for this carrier, it will not be able to connect unless the device is approved for this network. Check with the network operator to confirm whether a device is approved or not.
Even if a device supports some or all of the required frequencies for this carrier, it will not be able to connect unless the device is approved for this network. Check with the network operator to confirm whether a device is approved or not.
Frequency Bands Used by KDDI au (Japan)
Select a band or interface for more details
LTE
Compatibility - 3 out of 4 bands supported
Interface | Name | Supported by device? |
---|---|---|
LTE | B1 (2100) | Yes |
LTE | B11 1500 Lower | No |
LTE | B18 (800 Lower) | Yes |
LTE | B41 (TD 2500) | Yes |
Supported LTE Protocols
Name | Generation | Supported by device? |
---|---|---|
LTE | 4G | No |
CDMA
Compatibility - 1 out of 2 bands supported
Interface | Name | Supported by device? |
---|---|---|
CDMA | BC0 (800) | Yes |
CDMA | BC6 (2 Ghz) | No |
Supported CDMA Protocols
Name | Generation | Supported by device? |
---|---|---|
CDMA2000 1xRTT | 3G | No |
CDMA2000 1xEV-DO Rev A | 3G | 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.