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| Phone | ZTE Force | Nokia N81 | Sony Xperia S | Sony Ericsson K850 | Ericsson R278d |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
2.4" diag. 4 : 3 |
4.3" diag. 16 : 9 |
2.2" diag. 4 : 3 |
? |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~342 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
101 x 40 pixels |
| Display Refresh | 60 Hz | ? | 60 Hz | ? | ? |
| Battery | 1,735 mAh | 1,050 mAh | 1,750 mAh | ? | ? |
| Processor | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 | 369 MHz ARM 11 | 1.5 GHz Qualcomm Snapdragon S3 MSM8260 | ? | ? |
| RAM | 1 GB | ? | 1 GB | ? | ? |
| Storage | 4 GB | 8 GB * | 32 GB | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 2 megapixel | 12 megapixel | 5 megapixel | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 720p HD | VGA (640 x 480) | 1080p HD | ? | - |
| Front Camera | 1 megapixel | - | 1 megapixel | - | - |
| Weight |
5.4 oz (153g) |
4.94 oz (140g) |
5.1 oz (145g) |
4.2 oz (119g) |
9.28 oz (263g) |
| Dimensions |
4.88" x 2.54" x 0.47" (124 x 65 x 11.9 mm) |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
5" x 2.5" x 0.4" (127 x 64 x 10.2 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
| Form Factor | Slab | Slide | Slab | Slab | Slab |
| Platform / OS | Android | S60 (Symbian) | Android | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 25 CDMA: 800, 850, 1900 |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
TDMA: 850, 1900 AMPS: 850 |
| Data Technology | LTE (Cat 3) | EDGE | HSPA 14.4 | HSDPA 3.6 | - |
| Features | |||||
| GPS / Location | n/a | n/a | n/a | - | - |
| Accessibility | |||||
| Adjustable Text Size | n/a | n/a | n/a | - | - |
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
- | - | - | - |
| Multiple Languages | n/a | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | - | Yes | - |
| Alerts | |||||
| Ringer Profiles | - | Yes | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | - |
| Mobile Hotspot | n/a | n/a | n/a | - | - |
| NFC | Yes | - | Yes | - | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
Yes | - |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | |||||
| Picture ID | n/a | n/a | n/a | Yes | - |
| Ringer ID | n/a | n/a | n/a | Yes | - |
| Voice Dialing | n/a | n/a | n/a | Yes | - |
| Customization | |||||
| Custom Graphics | n/a | n/a | n/a | Yes | - |
| Custom Ringtones | n/a | n/a | n/a | Yes | Yes |
| Real-Music Ringers | n/a | n/a | n/a | Yes | - |
| Data & Network | |||||
| Data Tethering | n/a | n/a | n/a | Yes | Yes |
| WAP / Web Browser | n/a | n/a | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | n/a | n/a | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- | - |
| Memory | |||||
| Memory Card Slot | Yes | Yes * | - | Yes | - |
| Messaging | |||||
| Email Client | n/a | n/a | n/a | Yes | - |
| Instant Messaging | n/a | n/a | n/a | - | - |
| MMS | n/a | n/a | n/a | Yes | - |
| Text Messaging Templates | n/a | n/a | n/a | Yes | - |
| Music | |||||
| FM Radio | - | Yes | Yes | Yes | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - | - |
| Music Player | n/a | n/a | n/a | Yes | - |
| Stereo Speakers | - | Yes | - | - | - |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| TV Output | - | - | Yes | - | - |
| Video Calling | n/a | n/a | n/a | Yes * | - |
| Productivity | |||||
| Alarm | n/a | n/a | n/a | Yes | Yes |
| Calculator | n/a | n/a | n/a | Yes | - |
| Calendar | n/a | n/a | n/a | Yes | - |
| To-Do List | n/a | n/a | n/a | Yes | - |
| Voice Memo | n/a | n/a | n/a | Yes | - |
| Software | |||||
| Games | n/a | n/a | n/a | Yes | - |
| Java (J2ME) | n/a | n/a | n/a | Yes | - |
| Voice | |||||
| HD Voice | Yes | - | - | - | - |
| Push-To-Talk | - | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | - |
| * Some versions only | |||||
| ZTE Force | Nokia N81 | Sony Xperia S | Sony Ericsson K850 | Ericsson R278d | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Force | Nokia N81 | Sony Xperia S | Sony Ericsson K850 | Ericsson R278d |
