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| Phone | Samsung MM-A900 / SPH-A900 / Ace | Sanyo RL-4930 | HTC Droid Eris | ZTE Z431 / Altair |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
3.2" diag. 5 : 3 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
128 x 112 pixels LCD (STN) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | ? | 1,700 mAh | 1,300 mAh | 1,000 mAh |
| Processor | ? | ? | 528 MHz MSM7600 | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | - | 5 megapixel | 2 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | CIF (352 x 288) | QVGA (320 x 240) |
| Front Camera | - | - | - | - |
| Weight |
3.9 oz (111g) |
4.4 oz (125g) |
4.43 oz (126g) |
3.52 oz (100g) |
| Dimensions |
3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm) |
4.5" x 2" x 1" (114 x 51 x 25.4 mm) |
4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm) |
4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO r0 | 1xRTT | EVDO rA | ? |
| Features | ||||
| GPS / Location | Yes | Yes | n/a | Yes |
| Ruggedized | - | Yes | - | - |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| USB | Yes | Yes |
Yes Mini-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 802.11 b,g |
- |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | Yes |
| Voice Dialing | Yes | Yes | n/a | - |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | - | n/a | Yes |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | - | - | n/a | Yes |
| Instant Messaging | - | - | n/a | - |
| MMS | - | - | n/a | Yes |
| Text Messaging Templates | Yes | - | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | Yes | - | n/a | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | - | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | Yes | Yes | n/a | - |
| Voice Memo | Yes | Yes | n/a | Yes |
| Software | ||||
| BREW | - | - | n/a | Yes |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | - |
| Voice | ||||
| Call Screening | - | Yes | - | - |
| Headset Jack (2.5 mm) | Yes | - | n/a | - |
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung MM-A900 / SPH-A900 / Ace | Sanyo RL-4930 | HTC Droid Eris | ZTE Z431 / Altair | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung MM-A900 / SPH-A900 / Ace | Sanyo RL-4930 | HTC Droid Eris | ZTE Z431 / Altair |
