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| Phone | Nokia N81 | Motorola Charm | Samsung SPH-i550 | Microsoft Lumia 950 XL |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
2.8" diag. 4 : 3 |
? |
5.7" diag. 16 : 9 |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
320 x 240 pixels (~143 ppi) LCD (TFT/TFD) |
320 x 320 pixels LCD (TFT/TFD) |
1440 x 2560 pixels (~515 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | ? | ? |
| Battery | 1,050 mAh | 1,170 mAh | ? | 3,340 mAh |
| Processor | 369 MHz ARM 11 | 720 MHz TI OMAP3410 | 200 MHz Motorola MX-1 | 2 GHz Qualcomm Snapdragon 810 (MSM8994) |
| RAM | ? | ? | ? | 3 GB |
| Storage | 8 GB * | ? raw hardware | ? raw hardware | 32 GB |
| Main Camera | 2 megapixel | 3 megapixel | 1 megapixel | 20 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | VGA (640 x 480) | ? | ? | 4K UHD |
| Front Camera | - | - | - | 5 megapixel |
| Weight |
4.94 oz (140g) |
3.88 oz (110g) |
? |
5.82 oz (165g) |
| Dimensions |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm) |
3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm) |
5.98" x 3.09" x 0.32" (152 x 78 x 8.1 mm) |
| Platform / OS | S60 (Symbian) | Android | Palm OS | Windows |
| Network Bands |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 40 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | EDGE | HSDPA 3.6 | 1xRTT | LTE (Cat 6) |
| Features | ||||
| Flashlight | - | - | - | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | - | - |
Yes M3, T4 (very tele-coil compatible) |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| Infrared (IR) | - | - | Yes | - |
| NFC | - | - | - | Yes |
| USB |
Yes Micro-USB |
Yes Micro-USB |
- |
Yes USB Type C |
| Wi-Fi |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Input | ||||
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - |
Yes Capacitive |
Yes |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes * | Yes | Yes | Yes |
| Music | ||||
| FM Radio | Yes | - | - | Yes |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| Miracast | - | - | - | Yes |
| TV Output | - | - | - | Yes |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Wireless Charging | - | - | - | Yes |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | - | Yes |
| * Some versions only | ||||
| Nokia N81 | Motorola Charm | Samsung SPH-i550 | Microsoft Lumia 950 XL | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia N81 | Motorola Charm | Samsung SPH-i550 | Microsoft Lumia 950 XL |
