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| Phone | ZTE Prelude / Avail 2 | BlackBerry 7750 | AT&T Vista | Cricket Debut S2 / AT&T Calypso 4 |
| Current U.S. Carriers | (none) | (none) | (none) | AT&T |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
? |
5.5" diag. 18 : 9 |
6.1" diag. 19.5 : 9 |
| Display Resolution & Type |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | 60 Hz |
| Battery | 1,500 mAh | ? | 2,450 mAh | 3,000 mAh |
| Processor | 1 GHz Qualcomm Snapdragon MSM7225A | ? | 2 GHz MediaTek Helio A22 (MT6761V) | 2 GHz MediaTek Helio A22 (MT6761WB) |
| RAM | 512 MB | ? | 3 GB | 3 GB |
| Storage | 4 GB | ? raw hardware | 32 GB | 64 GB |
| Main Camera | 2 megapixel | - | 8 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | VGA (640 x 480) | - | 1080p HD | ? |
| Front Camera | - | - | 5 megapixel | 5 megapixel |
| Weight |
4.4 oz (125g) |
5.01 oz (142g) |
5.51 oz (156g) |
5.64 oz (160g) |
| Dimensions |
4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
| Platform / OS | Android | BlackBerry OS | Android | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
| Data Technology | HSPA 7.2 | 1xRTT | LTE (Cat 4) | LTE (Cat 4) |
| Features | ||||
| Flashlight | - | - | Yes | Yes |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| TTY/TDD (Digital) | Yes | Yes | - | - |
| Alerts | ||||
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| USB | Yes | Yes |
Yes USB Type C |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | Yes |
Yes 5 (802.11 a,ac,b,g,n) |
| Input | ||||
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | Yes |
| Speaker Phone | Yes | - | Yes | Yes |
| ZTE Prelude / Avail 2 | BlackBerry 7750 | AT&T Vista | Cricket Debut S2 / AT&T Calypso 4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Prelude / Avail 2 | BlackBerry 7750 | AT&T Vista | Cricket Debut S2 / AT&T Calypso 4 |
