Microsoft Lumia 640 3G vs. UMI X3 Frequency Band Comparison
Comparison Criteria
Frequency Band Comparison
Select a band for more details
| Frequency Band |
Microsoft Lumia 640 3G View device details |
UMI X3 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) | Yes | Yes |
| UMTS B2 (1900 MHz PCS) | Yes | No |
| UMTS B5 (850 MHz) | Yes | No |
| UMTS B8 (900 MHz GSM) | Yes | Yes |
