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| Phone | Samsung SCH-A990 | HTC G2 | Nokia N81 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
3.7" diag. 5 : 3 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
480 x 800 pixels (~252 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? |
| Battery | 1,000 mAh | 1,300 mAh | 1,050 mAh |
| Processor | ? | 800 MHz Qualcomm S2 MSM7230 | 369 MHz ARM 11 |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 8 GB * |
| Main Camera | 3 megapixel | 5 megapixel | 2 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | 720p HD | VGA (640 x 480) |
| Front Camera | - | - | - |
| Weight |
4.4 oz (125g) |
6.5 oz (184g) |
4.94 oz (140g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.68" x 2.37" x 0.55" (119 x 60 x 14 mm) |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
| Form Factor | Clamshell | Slab | Slide |
| Platform / OS | (proprietary) | Android | S60 (Symbian) |
| Network Bands |
CDMA: 850, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO r0 | HSPA 14.4 | EDGE |
| Features | |||
| Flashlight | Yes | - | - |
| GPS / Location | Yes | n/a | n/a |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | - | - |
| Alerts | |||
| Extra Display | Yes | - | - |
| Ringer Profiles | - | - | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a |
| USB | Yes | Yes |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 802.11 b,g |
| Contacts | |||
| Picture ID | Yes | n/a | n/a |
| Ringer ID | Yes | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a |
| Customization | |||
| Custom Graphics | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a |
| Data & Network | |||
| Data Tethering | Yes | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes * |
| Messaging | |||
| Email Client | - | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a |
| Instant Messaging | - | n/a | n/a |
| MMS | Yes | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a |
| Music | |||
| FM Radio | - | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Music Player | Yes | n/a | n/a |
| Stereo Speakers | Yes | - | Yes |
| Photo & Video | |||
| TV Output | Yes | - | - |
| Video Calling | - | n/a | n/a |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | Yes | n/a | n/a |
| Calendar | Yes | n/a | n/a |
| To-Do List | - | n/a | n/a |
| Voice Memo | Yes | n/a | n/a |
| Software | |||
| BREW | Yes | n/a | n/a |
| Games | Yes | n/a | n/a |
| Java (J2ME) | - | n/a | n/a |
| Voice | |||
| Push-To-Talk | - | - | Yes * |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung SCH-A990 | HTC G2 | Nokia N81 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | HTC G2 | Nokia N81 |
