Apple Watch Series 4 40mm TD-LTE NA A1975 (Apple Watch 4,3) vs. Oppo A31 2020 Dual SIM TD-LTE V2 TH 128GB CPH2015 (BBK 2015) Frequency Band Comparison
Comparison Criteria
Frequency Band Comparison
Select a band for more details
| Frequency Band |
Apple Watch Series 4 40mm TD-LTE NA A1975 (Apple Watch 4,3) View device details |
Oppo A31 2020 Dual SIM TD-LTE V2 TH 128GB CPH2015 (BBK 2015) View device details |
|---|---|---|
| GSM 850 MHz | No | Yes |
| GSM 900 MHz (E-GSM) | No | Yes |
| GSM 1800 MHz (DCS) | No | Yes |
| GSM 1900 MHz (PCS) | No | Yes |
| UMTS B1 (2100 MHz) | No | Yes |
| UMTS B2 (1900 MHz PCS) | Yes | No |
| UMTS B4 (1700/2100 MHz AWS 1) | Yes | No |
| UMTS B5 (850 MHz) | Yes | Yes |
| UMTS B8 (900 MHz GSM) | No | Yes |
| LTE B1 (2100 MHz) | No | Yes |
| LTE B2 (1900 MHz PCS) | Yes | No |
| LTE B3 (1800 MHz +) | No | Yes |
| LTE B4 (1700/2100 MHz AWS 1) | Yes | No |
| LTE B5 (850 MHz) | Yes | Yes |
| LTE B7 (2600 MHz) | No | Yes |
| LTE B8 (900 MHz) | No | Yes |
| LTE B12 (700 MHz ac) | Yes | No |
| LTE B13 (700 MHz c) | Yes | No |
| LTE B17 (700 MHz bc) | Yes | No |
| LTE B18 (800 MHz Lower) | Yes | No |
| LTE B19 (800 MHz Upper) | Yes | No |
| LTE B25 (1900 MHz +) | Yes | No |
| LTE B26 (850 MHz +) | Yes | No |
| LTE B38 (TD 2600 MHz) | No | Yes |
| LTE B40 (TD 2300 MHz) | No | Yes |
| LTE B41 (TD 2500 MHz) | Yes | Yes |
