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| Phone | Nokia N81 | HP iPAQ hw6920 / hw6925 / hw6915 / hw6945 | Samsung Byline R310 | Motorola VA76r Tundra | HTC Windows Phone 8S |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
? |
1.8" diag. 4 : 3 |
2.2" diag. 4 : 3 |
4" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
240 x 240 pixels LCD (TFT/TFD) |
128 x 160 pixels (~116 ppi) LCD (STN) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 1,050 mAh | 1,200 mAh | 800 mAh | 1,130 mAh | 1,700 mAh |
| Processor | 369 MHz ARM 11 | 416 MHz Intel XScale PXA270 | ? | ? | 1 GHz Qualcomm Snapdragon S4 |
| RAM | ? | ? | ? | ? | 512 MB |
| Storage | 8 GB * | ? raw hardware | ? raw hardware | ? raw hardware | 4 GB |
| Main Camera | 2 megapixel | 1 megapixel | - | 2 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | VGA (640 x 480) | ? | - | ? | 720p HD |
| Front Camera | - | - | - | - | - |
| Weight |
4.94 oz (140g) |
6.33 oz (179g) |
3.25 oz (92g) |
5.15 oz (146g) |
3.99 oz (113g) |
| Dimensions |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
4.65" x 2.8" x 0.71" (118 x 71 x 18 mm) |
3.5" x 1.7" x 0.77" (89 x 43 x 19.6 mm) |
3.84" x 2.14" x 0.95" (98 x 54 x 24.1 mm) |
4.74" x 2.48" x 0.4" (121 x 63 x 10.3 mm) |
| Form Factor | Slide | Slab | Clamshell | Clamshell | Slab |
| Platform / OS | S60 (Symbian) | Windows Mobile Professional | (proprietary) | (proprietary) | Windows |
| Network Bands |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EDGE | EDGE | 1xRTT | HSDPA 3.6 | HSPA+ 21 |
| Features | |||||
| Flashlight | - | - | - | - | Yes |
| GPS / Location | n/a | n/a | Yes | Yes | n/a |
| Ruggedized | - | - | - | Yes | - |
| Accessibility | |||||
| Hearing Aid Compatible | - | - |
Yes M4 (very compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | - | Yes | Yes | - |
| Ringer Profiles | Yes | Yes | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - | - | - |
| USB |
Yes Micro-USB |
Yes | - |
Yes Mini-USB |
Yes |
| Wi-Fi |
Yes 802.11 b,g |
Yes | - | - |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | n/a | n/a | Yes | Yes | n/a |
| Ringer ID | n/a | n/a | Yes | Yes | n/a |
| Voice Dialing | n/a | n/a | Yes | Yes | n/a |
| Customization | |||||
| Custom Graphics | n/a | n/a | Yes | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | Yes | n/a |
| Real-Music Ringers | n/a | n/a | - | Yes | n/a |
| Data & Network | |||||
| Data Tethering | n/a | n/a | - | Yes | n/a |
| WAP / Web Browser | n/a | n/a | Yes | Yes | n/a |
| Input | |||||
| Predictive Text Entry | n/a | n/a | Yes | Yes | n/a |
| Side Keys | Yes | - | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen | - | Yes | - | - |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes * | Yes | - | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | n/a | - | Yes | n/a |
| Instant Messaging | n/a | n/a | - | Yes | n/a |
| MMS | n/a | n/a | Yes | Yes | n/a |
| Text Messaging Templates | n/a | n/a | Yes | Yes | n/a |
| Music | |||||
| FM Radio | Yes | - | - | - | - |
| Headphone Jack (3.5mm) | Yes | - | - | - | Yes |
| Music Player | n/a | n/a | - | Yes | n/a |
| Stereo Speakers | Yes | - | - | - | - |
| Photo & Video | |||||
| Video Calling | n/a | n/a | - | - | n/a |
| Productivity | |||||
| Alarm | n/a | n/a | Yes | Yes | n/a |
| Calculator | n/a | n/a | Yes | Yes | n/a |
| Calendar | n/a | n/a | Yes | Yes | n/a |
| To-Do List | n/a | n/a | - | Yes | n/a |
| Voice Memo | n/a | n/a | - | Yes | n/a |
| Software | |||||
| BREW | n/a | n/a | Yes | - | n/a |
| Games | n/a | n/a | Yes | Yes | n/a |
| Java (J2ME) | n/a | n/a | - | Yes | n/a |
| Voice | |||||
| Push-To-Talk | Yes * | - | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Nokia N81 | HP iPAQ hw6920 / hw6925 / hw6915 / hw6945 | Samsung Byline R310 | Motorola VA76r Tundra | HTC Windows Phone 8S | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia N81 | HP iPAQ hw6920 / hw6925 / hw6915 / hw6945 | Samsung Byline R310 | Motorola VA76r Tundra | HTC Windows Phone 8S |
