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| Phone | Samsung SCH-A990 | Motorola Charm | Motorola i50sx | Motorola i85s / i88s | ZTE Z431 / Altair |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.8" diag. 4 : 3 |
? | ? |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
320 x 240 pixels (~143 ppi) LCD (TFT/TFD) |
? LCD (Grayscale) |
? LCD (Grayscale) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? | ? |
| Battery | 1,000 mAh | 1,170 mAh | 750 mAh | 750 mAh | 1,000 mAh |
| Processor | ? | 720 MHz TI OMAP3410 | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | 3 megapixel | - | - | 2 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | ? | ? | - | - | QVGA (320 x 240) |
| Front Camera | - | - | - | - | - |
| Weight |
4.4 oz (125g) |
3.88 oz (110g) |
5.1 oz (145g) |
4.8 oz (136g) |
3.52 oz (100g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm) |
5.24" x 2.05" x 1.18" (133 x 52 x 30 mm) |
5.16" x 1.97" x 1.14" (131 x 50 x 29 mm) |
4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
iDEN: 800 |
iDEN: 800 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | EVDO r0 | HSDPA 3.6 | - | - | ? |
| Features | |||||
| Flashlight | Yes | - | - | - | - |
| GPS / Location | Yes | n/a | - | Yes * | Yes |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
- | - | - |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | Yes | - | - | - | - |
| Ringer Profiles | - | - | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | Yes | Yes | - | - | Yes |
| USB | Yes |
Yes Micro-USB |
- | - |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | |||||
| Picture ID | Yes | n/a | - | - | Yes |
| Ringer ID | Yes | n/a | - | - | Yes |
| Voice Dialing | Yes | n/a | Yes | Yes | - |
| Customization | |||||
| Changeable Body Plates | - | - | Yes | - | - |
| Custom Graphics | Yes | n/a | - | - | Yes |
| Custom Ringtones | Yes | n/a | - | - | Yes |
| Real-Music Ringers | Yes | n/a | - | - | Yes |
| Data & Network | |||||
| Data Tethering | Yes | n/a | Yes | Yes | Yes |
| WAP / Web Browser | Yes | n/a | Yes | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- | - | - |
| Memory | |||||
| Memory Card Slot | Yes | Yes | - | - | Yes |
| Messaging | |||||
| Email Client | - | n/a | - | - | Yes |
| EMS / Picture Messaging | Yes | n/a | - | - | - |
| Instant Messaging | - | n/a | - | - | - |
| MMS | Yes | n/a | - | - | Yes |
| Text Messaging Templates | Yes | n/a | - | - | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | - | Yes |
| Music Player | Yes | n/a | - | - | Yes |
| Stereo Speakers | Yes | - | - | - | - |
| Photo & Video | |||||
| TV Output | Yes | - | - | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | Yes | Yes |
| Calculator | Yes | n/a | - | - | Yes |
| Calendar | Yes | n/a | Yes | Yes | Yes |
| Voice Memo | Yes | n/a | - | Yes | Yes |
| Software | |||||
| BREW | Yes | n/a | - | - | Yes |
| Games | Yes | n/a | - | - | Yes |
| Java (J2ME) | - | n/a | - | Yes | - |
| Voice | |||||
| Headset Jack (2.5 mm) | - | n/a | Yes | Yes | - |
| Push-To-Talk | - | - | Yes | Yes | - |
| Speaker Phone | Yes | Yes | - | Yes | Yes |
| * Some versions only | |||||
| Samsung SCH-A990 | Motorola Charm | Motorola i50sx | Motorola i85s / i88s | ZTE Z431 / Altair | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | Motorola Charm | Motorola i50sx | Motorola i85s / i88s | ZTE Z431 / Altair |
