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| Phone | ZTE Z998 / Unico LTE | Samsung SCH-A310 | BlackBerry 7750 | Sanyo RL-4920 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
? | ? | ? |
| Display Resolution & Type |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (Grayscale) |
240 x 240 pixels LCD (Color) |
128 x 112 pixels LCD (Color) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 2,070 mAh | ? | ? | 1,700 mAh |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | ? | ? | ? |
| RAM | 1 GB | ? | ? | ? |
| Storage | 4 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | - | - | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | - | - | - |
| Front Camera | 1 megapixel | - | - | - |
| Weight |
4.8 oz (136g) |
3.2 oz (91g) |
5.01 oz (142g) |
4.03 oz (114g) |
| Dimensions |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
3.43" x 1.89" x 0.87" (87 x 48 x 22.1 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
4.22" x 1.85" x 0.85" (107 x 47 x 21.6 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | Android | (proprietary) | BlackBerry OS | (proprietary) |
| Network Bands |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
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| Data Technology | LTE (Cat 3) | 1xRTT | 1xRTT | 1xRTT |
| Features | ||||
| GPS / Location | n/a | Yes | n/a | Yes |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | n/a | - |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- | - | - |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | - | - | - |
| Mobile Hotspot | n/a | - | n/a | - |
| USB |
Yes Micro-USB |
Yes | Yes | Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | ||||
| Picture ID | n/a | - | n/a | Yes |
| Ringer ID | n/a | - | n/a | Yes |
| Voice Dialing | n/a | Yes | n/a | Yes |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | n/a | - | n/a | Yes |
| Custom Ringtones | n/a | - | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | - |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen |
Yes Capacitive |
- | - | - |
| Memory | ||||
| Memory Card Slot | Yes | - | - | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | - |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | - | n/a | - |
| Text Messaging Templates | n/a | - | n/a | - |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | n/a | - | n/a | - |
| Productivity | ||||
| Alarm | n/a | - | n/a | Yes |
| Calculator | n/a | - | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| To-Do List | n/a | - | n/a | Yes |
| Voice Memo | n/a | Yes | n/a | Yes |
| Software | ||||
| Games | n/a | Yes | n/a | Yes |
| Java (J2ME) | n/a | - | n/a | Yes |
| Voice | ||||
| Call Screening | - | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | Yes |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | - | - | Yes |
| * Some versions only | ||||
| ZTE Z998 / Unico LTE | Samsung SCH-A310 | BlackBerry 7750 | Sanyo RL-4920 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z998 / Unico LTE | Samsung SCH-A310 | BlackBerry 7750 | Sanyo RL-4920 |
