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| Phone | ZTE Z431 / Altair | Sony Ericsson Z750 | Motorola V220 | LG AX-390 / UX-390 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
2.2" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
128 x 128 pixels LCD (STN) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,000 mAh | 950 mAh | 820 mAh | 1,000 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 2 megapixel | 2 megapixel | Yes | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | ? | - | - |
| Front Camera | - | - | - | - |
| Weight |
3.52 oz (100g) |
3.88 oz (110g) |
3.7 oz (105g) |
3.74 oz (106g) |
| Dimensions |
4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm) |
3.83" x 1.93" x 0.79" (97 x 49 x 20.1 mm) |
3.29" x 1.73" x 0.94" (84 x 44 x 23.9 mm) |
3.82" x 1.98" x 0.94" (97 x 50 x 23.9 mm) |
| Form Factor | Slab | Clamshell | Clamshell | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
| Data Technology | ? | HSDPA 1.8 | GPRS | 1xRTT |
| Features | ||||
| GPS / Location | Yes | - | - | Yes |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | - | Yes | Yes | Yes |
| Ringer Profiles | Yes | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | - |
| USB |
Yes Micro-USB |
Yes | Yes | - |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | Yes |
| Ringer ID | Yes | Yes | Yes | - |
| Voice Dialing | - | - | Yes | Yes |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | Yes | Yes | Yes | Yes |
| Data & Network | ||||
| Data Tethering | Yes | Yes | Yes | - |
| External Antenna Jack | - | Yes | - | - |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | - | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | - |
| Messaging | ||||
| Email Client | Yes | Yes | - | - |
| EMS / Picture Messaging | - | - | Yes | - |
| Instant Messaging | - | Yes | Yes | - |
| MMS | Yes | Yes | Yes | Yes |
| Text Messaging Templates | Yes | Yes | Yes | - |
| Music | ||||
| FM Radio | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | Yes | Yes | - | - |
| Photo & Video | ||||
| Video Calling | - | Yes * | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | - | Yes | - | - |
| Voice Memo | Yes | Yes | - | Yes |
| Software | ||||
| BREW | Yes | - | - | Yes |
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | - | Yes | Yes | - |
| Voice | ||||
| Headset Jack (2.5 mm) | - | - | Yes | Yes |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| ZTE Z431 / Altair | Sony Ericsson Z750 | Motorola V220 | LG AX-390 / UX-390 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z431 / Altair | Sony Ericsson Z750 | Motorola V220 | LG AX-390 / UX-390 |
