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| Phone | HTC G2 | Samsung Gravity TXT | Samsung SCH-A990 | Ericsson T39 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.7" diag. 5 : 3 |
2.4" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
480 x 800 pixels (~252 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
? LCD (Grayscale) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 1,300 mAh | 1,000 mAh | 1,000 mAh | ? |
| Processor | 800 MHz Qualcomm S2 MSM7230 | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 2 megapixel | 3 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | QVGA (320 x 240) | ? | - |
| Front Camera | - | - | - | - |
| Weight |
6.5 oz (184g) |
3.95 oz (112g) |
4.4 oz (125g) |
3.03 oz (86g) |
| Dimensions |
4.68" x 2.37" x 0.55" (119 x 60 x 14 mm) |
4.41" x 2.09" x 0.55" (112 x 53 x 14 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.78" x 1.97" x 0.71" (96 x 50 x 18 mm) |
| Form Factor | Slab | Slide | Clamshell | Flip |
| Platform / OS | Android | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 4 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | HSPA 14.4 | HSPA 7.2 | EVDO r0 | GPRS |
| Features | ||||
| Flashlight | - | - | Yes | - |
| GPS / Location | n/a | Yes | Yes | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | - | Yes | - |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | - | Yes |
| Mobile Hotspot | n/a | - | - | - |
| USB | Yes |
Yes Micro-USB |
Yes | - |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | ||||
| Picture ID | n/a | Yes | Yes | - |
| Ringer ID | n/a | Yes | Yes | - |
| Voice Dialing | n/a | Yes | Yes | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes | Yes |
| Real-Music Ringers | n/a | Yes | Yes | - |
| Data & Network | ||||
| Data Tethering | n/a | - | Yes | Yes |
| WAP / Web Browser | n/a | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | Yes |
| Side Keys | 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 | n/a | - | Yes | - |
| Instant Messaging | n/a | Yes | - | - |
| MMS | n/a | Yes | Yes | - |
| Text Messaging Templates | n/a | Yes | Yes | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | Yes | - | - |
| Music Player | n/a | Yes | Yes | - |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| TV Output | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | Yes |
| Calculator | n/a | Yes | Yes | Yes |
| Calendar | n/a | Yes | Yes | Yes |
| Voice Memo | n/a | Yes | Yes | Yes |
| Software | ||||
| BREW | n/a | - | Yes | - |
| Games | n/a | Yes | Yes | Yes |
| Java (J2ME) | n/a | Yes | - | - |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | - |
| HTC G2 | Samsung Gravity TXT | Samsung SCH-A990 | Ericsson T39 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | HTC G2 | Samsung Gravity TXT | Samsung SCH-A990 | Ericsson T39 |
