O+ Air Dual SIM vs. T-Mobile SDA II (HTC Robbie) Frequency Band Comparison
Comparison Criteria
Device 1
Air Dual SIM
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Device 2
SDA II (HTC Robbie)
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Frequency Band Comparison
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| Frequency Band |
O+ Air Dual SIM View device details |
T-Mobile SDA II (HTC Robbie) 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 | No |
| UMTS B5 (850 MHz) | Yes | No |
