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| Phone | Nokia N81 | Motorola i50sx | Samsung Galaxy Fold | Motorola MPx200 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
? |
7.3" diag. 4 : 3 |
? |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
? LCD (Grayscale) |
1536 x 2152 pixels (~362 ppi) AMOLED |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 1,050 mAh | 750 mAh | 4,380 mAh | 850 mAh |
| Processor | 369 MHz ARM 11 | ? | 2.8 GHz Qualcomm Snapdragon 855 | ? |
| RAM | ? | ? | 12 GB | ? |
| Storage | 8 GB * | ? raw hardware | 512 GB | ? raw hardware |
| Main Camera | 2 megapixel | - | 12 megapixel | - |
| Wide Camera | - | - | 16 megapixel | - |
| Tele Camera | - | - | 12 megapixel | - |
| Video Capture | VGA (640 x 480) | - | 4K UHD | - |
| Front Camera | - | - | 10 megapixel | - |
| Weight |
4.94 oz (140g) |
5.1 oz (145g) |
9.74 oz (276g) |
4.16 oz (118g) |
| Dimensions |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
5.24" x 2.05" x 1.18" (133 x 52 x 30 mm) |
6.33" x 2.47" x 0.67" (161 x 63 x 17 mm) |
3.5" x 1.88" x 1.06" (89 x 48 x 26.9 mm) |
| Form Factor | Slide | Slab | Foldable | Clamshell |
| Platform / OS | S60 (Symbian) | (proprietary) | Android | Windows Mobile Standard |
| Network Bands |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
iDEN: 800 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 40, 41, 46, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 1800, 1900 |
| Data Technology | EDGE | - | LTE (Cat 18) | GPRS |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | - |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | - |
| Alerts | ||||
| Extra Display | - | - | Yes | Yes |
| Ringer Profiles | Yes | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | - |
| Infrared (IR) | - | - | - | Yes |
| MirrorLink | - | - | Yes | - |
| NFC | - | - | Yes | - |
| USB |
Yes Micro-USB |
- |
Yes USB Type C |
Yes |
| Wi-Fi |
Yes 802.11 b,g |
- |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | - | n/a | n/a |
| Ringer ID | n/a | - | n/a | n/a |
| Voice Dialing | n/a | Yes | n/a | n/a |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | n/a | - | n/a | n/a |
| Custom Ringtones | n/a | - | n/a | n/a |
| Real-Music Ringers | n/a | - | n/a | n/a |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | n/a |
| Dual-SIM | - | - | Yes | - |
| WAP / Web Browser | n/a | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes * | - | - | Yes |
| Messaging | ||||
| Email Client | n/a | - | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a |
| MMS | n/a | - | n/a | n/a |
| Text Messaging Templates | n/a | - | n/a | n/a |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | n/a | - | n/a | n/a |
| Stereo Speakers | Yes | - | Yes | - |
| Photo & Video | ||||
| TV Output | - | - | Yes | - |
| Video Calling | n/a | - | n/a | n/a |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Wireless Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | n/a |
| Calculator | n/a | - | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a |
| To-Do List | n/a | - | n/a | n/a |
| Voice Memo | n/a | - | n/a | n/a |
| Software | ||||
| Games | n/a | - | n/a | n/a |
| Java (J2ME) | n/a | - | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a |
| Push-To-Talk | Yes * | Yes | - | - |
| Speaker Phone | Yes | - | Yes | Yes |
| * Some versions only | ||||
| Nokia N81 | Motorola i50sx | Samsung Galaxy Fold | Motorola MPx200 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia N81 | Motorola i50sx | Samsung Galaxy Fold | Motorola MPx200 |
