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| Phone | Samsung Galaxy Ring / Prevail 2 | Coolpad Defiant | Samsung SGH-X640 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
5" diag. 16 : 9 |
? |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | ? |
| Battery | 1,750 mAh | 2,450 mAh | 800 mAh |
| Processor | 1.4 GHz Qualcomm Snapdragon S2 MSM8655 | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | ? |
| RAM | 1 GB | 1 GB | ? |
| Storage | 4 GB | 8 GB | ? raw hardware |
| Main Camera | 5 megapixel | 5 megapixel | Yes |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | 720p HD | - |
| Front Camera | 1 megapixel | 2 megapixel | - |
| Weight |
3.4 oz (96g) |
6.5 oz (184g) |
3 oz (85g) |
| Dimensions |
4.83" x 2.48" x 0.47" (123 x 63 x 11.9 mm) |
5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
| Form Factor | Slab | Slab | Clamshell |
| Platform / OS | Android | Android | (proprietary) |
| Network Bands |
CDMA: 800, 850, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | EVDO rA | LTE (Cat 4) | GPRS |
| Features | |||
| Flashlight | - | Yes | - |
| GPS / Location | n/a | n/a | - |
| Accessibility | |||
| Adjustable Text Size | n/a | n/a | - |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | - |
| USB | Yes |
Yes Micro-USB |
- |
| Wi-Fi |
Yes 4 (802.11 a,b,g,n) |
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 | n/a | - |
| Customization | |||
| Custom Graphics | n/a | n/a | Yes |
| Custom Ringtones | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | - |
| Data & Network | |||
| WAP / Web Browser | n/a | n/a | Yes |
| Input | |||
| Predictive Text Entry | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | n/a | n/a | - |
| EMS / Picture Messaging | n/a | n/a | Yes |
| Instant Messaging | n/a | n/a | - |
| MMS | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | Yes |
| Music | |||
| Headphone Jack (3.5mm) | Yes | Yes | - |
| Music Player | n/a | n/a | - |
| Photo & Video | |||
| DLNA | Yes | - | - |
| Productivity | |||
| Alarm | n/a | n/a | Yes |
| Calculator | n/a | n/a | Yes |
| Calendar | n/a | n/a | Yes |
| To-Do List | n/a | n/a | Yes |
| Voice Memo | n/a | n/a | Yes |
| Software | |||
| Games | n/a | n/a | Yes |
| Java (J2ME) | n/a | n/a | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | n/a | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes |
| Samsung Galaxy Ring / Prevail 2 | Coolpad Defiant | Samsung SGH-X640 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy Ring / Prevail 2 | Coolpad Defiant | Samsung SGH-X640 |
