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| Phone | ZTE Obsidian | Kyocera DuraPlus | Samsung SCH-A990 | Nokia N81 | Samsung UpStage M620 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
2" diag. 4 : 3 |
? |
2.4" diag. 4 : 3 |
2.1" diag. 4 : 3 |
| Display Resolution & Type |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | ? | ? |
| Battery | 1,800 mAh | 1,650 mAh | 1,000 mAh | 1,050 mAh | 620 mAh |
| Processor | 1 GHz MediaTek / MT6735M | ? | ? | 369 MHz ARM 11 | ? |
| RAM | 1 GB | 128 MB | ? | ? | ? |
| Storage | 8 GB | 256 MB | ? raw hardware | 8 GB * | ? raw hardware |
| Main Camera | 5 megapixel | - | 3 megapixel | 2 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 720p HD | - | ? | VGA (640 x 480) | ? |
| Front Camera | 2 megapixel | - | - | - | - |
| Weight |
4.66 oz (132g) |
6.67 oz (189g) |
4.4 oz (125g) |
4.94 oz (140g) |
2.57 oz (73g) |
| Dimensions |
5.41" x 2.7" x 0.39" (137 x 69 x 10 mm) |
5.28" x 2.17" x 0.93" (134 x 55 x 23.6 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
4.07" x 1.73" x 0.37" (103 x 44 x 9.4 mm) |
| Form Factor | Slab | Slab | Clamshell | Slide | Slab |
| Platform / OS | Android | (proprietary) | (proprietary) | S60 (Symbian) | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
CDMA: 850, 1900 |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 4) | EVDO rA | EVDO r0 | EDGE | EVDO r0 |
| Features | |||||
| Flashlight | Yes | Yes | Yes | - | - |
| GPS / Location | n/a | Yes | Yes | n/a | - |
| Ruggedized | - | Yes | - | - | - |
| Water-Resistant | - | Yes | - | - | - |
| Accessibility | |||||
| Adjustable Text Size | n/a | Yes | - | n/a | Yes |
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
Yes M4 (very compatible) |
| Multiple Languages | n/a | Yes | Yes | n/a | - |
| TTY/TDD (Digital) | Yes | Yes | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | - | Yes | - | Yes |
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | - | - | n/a | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
Yes 802.11 b,g |
- |
| Contacts | |||||
| Picture ID | n/a | - | Yes | n/a | Yes |
| Ringer ID | n/a | Yes | Yes | n/a | Yes |
| Voice Dialing | n/a | Yes | Yes | n/a | Yes |
| Customization | |||||
| Custom Graphics | n/a | Yes | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | Yes | n/a | Yes |
| Data & Network | |||||
| Data Tethering | n/a | - | Yes | n/a | - |
| External Antenna Jack | n/a | - | - | n/a | Yes |
| WAP / Web Browser | n/a | Yes | Yes | n/a | Yes |
| Input | |||||
| Predictive Text Entry | n/a | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - | - | - |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | Yes * | Yes |
| Messaging | |||||
| Email Client | n/a | - | - | n/a | - |
| EMS / Picture Messaging | n/a | - | Yes | n/a | - |
| Instant Messaging | n/a | - | - | n/a | Yes |
| MMS | n/a | Yes | Yes | n/a | Yes |
| Text Messaging Templates | n/a | Yes | Yes | n/a | Yes |
| Music | |||||
| FM Radio | - | - | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | - | Yes | - |
| Music Player | n/a | - | Yes | n/a | Yes |
| Stereo Speakers | - | - | Yes | Yes | - |
| Photo & Video | |||||
| TV Output | - | - | Yes | - | - |
| Video Calling | n/a | - | - | n/a | - |
| Productivity | |||||
| Alarm | n/a | Yes | Yes | n/a | Yes |
| Calculator | n/a | Yes | Yes | n/a | Yes |
| Calendar | n/a | Yes | Yes | n/a | Yes |
| To-Do List | n/a | - | - | n/a | Yes |
| Voice Memo | n/a | Yes | Yes | n/a | Yes |
| Software | |||||
| BREW | n/a | Yes | Yes | n/a | - |
| Games | n/a | Yes | Yes | n/a | Yes |
| Java (J2ME) | n/a | Yes | - | n/a | Yes |
| Voice | |||||
| Headset Jack (2.5 mm) | n/a | Yes | - | n/a | - |
| Push-To-Talk | - | Yes | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| ZTE Obsidian | Kyocera DuraPlus | Samsung SCH-A990 | Nokia N81 | Samsung UpStage M620 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Obsidian | Kyocera DuraPlus | Samsung SCH-A990 | Nokia N81 | Samsung UpStage M620 |
