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| Phone | Coolpad Quattro 4G | Samsung SGH-X640 | HTC Droid Eris | Sharp TM100 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
? |
3.2" diag. 5 : 3 |
? |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 1,600 mAh | 800 mAh | 1,300 mAh | 780 mAh |
| Processor | ? | ? | 528 MHz MSM7600 | ? |
| RAM | ? | ? | ? | ? |
| Storage | 512 MB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | Yes | 5 megapixel | Yes |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | VGA (640 x 480) | - | CIF (352 x 288) | ? |
| Front Camera | Yes | - | - | - |
| Weight |
3.31 oz (94g) |
3 oz (85g) |
4.43 oz (126g) |
3.7 oz (105g) |
| Dimensions |
4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm) |
3.94" x 1.93" x 0.76" (100 x 49 x 19.3 mm) |
| Form Factor | Slab | Clamshell | Slab | Slide |
| Platform / OS | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | LTE (Cat 3) | GPRS | EVDO rA | GPRS |
| Features | ||||
| GPS / Location | n/a | - | n/a | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | - |
| Alerts | ||||
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | - |
| Infrared (IR) | - | - | - | Yes |
| Mobile Hotspot | n/a | - | n/a | - |
| USB | Yes | - |
Yes Mini-USB |
Yes |
| Wi-Fi | Yes | - |
Yes 802.11 b,g |
- |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | Yes |
| Voice Dialing | n/a | - | n/a | - |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | - | n/a | Yes |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | Yes |
| EMS / Picture Messaging | n/a | Yes | n/a | Yes |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | Yes | n/a | Yes |
| Text Messaging Templates | n/a | Yes | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | Yes | - |
| Music Player | n/a | - | n/a | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| To-Do List | n/a | Yes | n/a | - |
| Voice Memo | n/a | Yes | n/a | Yes |
| Software | ||||
| Games | n/a | Yes | n/a | Yes |
| Java (J2ME) | n/a | Yes | n/a | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | n/a | Yes | n/a | - |
| Speaker Phone | Yes | Yes | Yes | - |
| Coolpad Quattro 4G | Samsung SGH-X640 | HTC Droid Eris | Sharp TM100 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Coolpad Quattro 4G | Samsung SGH-X640 | HTC Droid Eris | Sharp TM100 |
