ZTE Avail Z990 (ZTE Roamer) vs. O2 Xda Diamond 2 (HTC Topaz 100) Frequency Band Comparison
Comparison Criteria
Frequency Band Comparison
Select a band for more details
| Frequency Band |
ZTE Avail Z990 (ZTE Roamer) View device details |
O2 Xda Diamond 2 (HTC Topaz 100) View device details |
|---|---|---|
| GSM 850 MHz | Yes | No |
| GSM 900 MHz (E-GSM) | Yes | Yes |
| GSM 1800 MHz (DCS) | Yes | Yes |
| GSM 1900 MHz (PCS) | Yes | Yes |
| UMTS B1 (2100 MHz) | Yes | Yes |
| UMTS B2 (1900 MHz PCS) | Yes | No |
| UMTS B5 (850 MHz) | Yes | No |
| UMTS B8 (900 MHz GSM) | No | Yes |
