BBK Vivo X21 UD Dual SIM TD-LTE IN 1728 vs. HTC P6550 (HTC Sirius) Frequency Band Comparison
Comparison Criteria
Frequency Band Comparison
Select a band for more details
| Frequency Band |
BBK Vivo X21 UD Dual SIM TD-LTE IN 1728 View device details |
HTC P6550 (HTC Sirius) View device details |
|---|---|---|
| GSM 850 MHz | Yes | Yes |
| GSM 900 MHz (E-GSM) | Yes | Yes |
| GSM 1800 MHz (DCS) | Yes | Yes |
| GSM 1900 MHz (PCS) | Yes | Yes |
| UMTS B1 (2100 MHz) | No | Yes |
| UMTS B2 (1900 MHz PCS) | No | Yes |
| UMTS B5 (850 MHz) | No | Yes |
