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| Phone | Samsung SCH-A990 | ZTE Z998 / Unico LTE | Coolpad Defiant | Motorola Charm |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4.5" diag. 16 : 9 |
5" diag. 16 : 9 |
2.8" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
320 x 240 pixels (~143 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 1,000 mAh | 2,070 mAh | 2,450 mAh | 1,170 mAh |
| Processor | ? | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | 720 MHz TI OMAP3410 |
| RAM | ? | 1 GB | 1 GB | ? |
| Storage | ? raw hardware | 4 GB | 8 GB | ? raw hardware |
| Main Camera | 3 megapixel | 5 megapixel | 5 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | 720p HD | 720p HD | ? |
| Front Camera | - | 1 megapixel | 2 megapixel | - |
| Weight |
4.4 oz (125g) |
4.8 oz (136g) |
6.5 oz (184g) |
3.88 oz (110g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm) |
3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | EVDO r0 | LTE (Cat 3) | LTE (Cat 4) | HSDPA 3.6 |
| Features | ||||
| Flashlight | Yes | - | Yes | - |
| GPS / Location | Yes | n/a | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| 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 | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | Yes | n/a | n/a | n/a |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| BREW | Yes | n/a | n/a | n/a |
| Games | Yes | n/a | n/a | n/a |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SCH-A990 | ZTE Z998 / Unico LTE | Coolpad Defiant | Motorola Charm | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | ZTE Z998 / Unico LTE | Coolpad Defiant | Motorola Charm |
