Samsung SM-G991U1 Galaxy S21 5G UW Dual SIM TD-LTE US 128GB (Samsung Unbound M1) - Frequency Bands and Network Compatibility
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The Samsung SM-G991U1 Galaxy S21 5G UW Dual SIM TD-LTE US 128GB (Samsung Unbound M1) supports 4 GSM bands, 5 UMTS bands, 25 LTE bands, and 3 CDMA bands. See the tables below for details.
This device accepts the following SIM types to connect to mobile networks:
- e-SIM
- Nano-SIM (4FF)
Run a cross-reference compatibility check of this device on a specific network and country using the following links:
Supported Frequency Bands (37)
GSM
| Name | Interface |
|---|---|
| 850 MHz | GSM |
| 900 MHz (E-GSM) | GSM |
| 1800 MHz (DCS) | GSM |
| 1900 MHz (PCS) | GSM |
Supported GSM Protocols
| Name | Generation |
|---|---|
| GPRS | 2.5G |
| GPRS C12 | 2G |
| EDGE | 2.5G |
| EDGE MSC12 | 2G |
UMTS
| Name | Interface |
|---|---|
| B1 (2100 MHz) | UMTS |
| B2 (1900 MHz PCS) | UMTS |
| B4 (1700/2100 MHz AWS 1) | UMTS |
| B5 (850 MHz) | UMTS |
| B8 (900 MHz GSM) | UMTS |
Supported UMTS Protocols
| Name | Generation |
|---|---|
| UMTS | 3G |
| HSUPA | 3.5G |
| HSUPA 5.8 | 3.5G |
| HSDPA | 3.5G |
| HSPA+ 21.1 | 3.5G (4G speed) |
| HSPA+ 42.2 | 3.5G (4G speed) |
| DC-HSDPA 42.2 | 3.5G |
LTE
Supported LTE Protocols
| Name | Generation |
|---|---|
| LTE 100/50 | 4G |
| LTE 150/50 | 4G |
| LTE 300/50 | 4G |
| LTE 300/75 | 4G |
| LTE 300/100 | 4G |
| LTE 400/150 | 4G |
| LTE 450/50 | 4G |
| LTE 450/100 | 4G |
| LTE 600/50 | 4G |
| LTE 600/100 | 4G |
| LTE 1000/100 | 4G |
| LTE 1200/200 | 4G |
| LTE 1600 | 4G |
| LTE 2000/300 | 4G |
CDMA
| Name | Interface |
|---|---|
| BC0 (800 MHz) | CDMA |
| BC1 (1900 MHz PCS) | CDMA |
| BC10 (Secondary 800 MHz) | CDMA |
Supported CDMA Protocols
| Name | Generation |
|---|---|
| cdmaOne | 2G |
| CDMA2000 1x | 3G |
| CDMA2000 1xEV-DO | 3G |
| CDMA2000 1xEV-DO Rev A | 3G |
