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| Phone | Nokia N81 | Apple iPhone Xr | Sony Xperia XZ2 | Samsung Zeal / Alias 2 SCH-U750 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
6.1" diag. 19.5 : 9 |
5.7" diag. 18 : 9 |
2.6" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
828 x 1792 pixels (~324 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~424 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? |
| Battery | 1,050 mAh | 2,942 mAh | 3,180 mAh | 880 mAh |
| Processor | 369 MHz ARM 11 | Apple A12 Bionic | Qualcomm Snapdragon 845 | ? |
| RAM | ? | 3 GB | 4 GB | ? |
| Storage | 8 GB * | 64 GB * | 64 GB | ? raw hardware |
| Main Camera | 2 megapixel | 12 megapixel | 19 megapixel | 2 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | VGA (640 x 480) | 4K UHD | 4K UHD | QCIF (176 x 144) |
| Front Camera | - | 7 megapixel | 5 megapixel | - |
| Weight |
4.94 oz (140g) |
6.84 oz (194g) |
6.98 oz (198g) |
4.34 oz (123g) |
| Dimensions |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
5.94" x 2.98" x 0.33" (151 x 76 x 8.4 mm) |
6.02" x 2.83" x 0.44" (153 x 72 x 11.1 mm) |
4.01" x 2.04" x 0.67" (102 x 52 x 17 mm) |
| Form Factor | Slide | Slab | Slab | Clamshell |
| Platform / OS | S60 (Symbian) | iOS | Android | (proprietary) |
| Network Bands |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 29, 30, 32, 34, 38, 39, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 29, 38, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | EDGE | LTE (Cat 9) | LTE (Cat 18) | EVDO r0 |
| Features | ||||
| Barometer | - | Yes | - | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes | - |
| GPS / Location | n/a | n/a | n/a | Yes |
| Water-Resistant | - |
Yes IPX7 (snorkeling) |
Yes IPX5 (direct spray) |
- |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | n/a | Yes |
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4 (very compatible) |
| Multiple Languages | n/a | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | - | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| NFC | - | Yes | Yes | - |
| USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
Yes |
| Wi-Fi |
Yes 802.11 b,g |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,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 |
| Real-Music Ringers | n/a | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | n/a | n/a | Yes |
| Dual-SIM | - | Yes | Yes | - |
| WAP / Web Browser | n/a | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | 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 | Yes |
| MMS | n/a | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | n/a | Yes |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | n/a | n/a | n/a | Yes |
| Stereo Speakers | Yes | Yes | Yes | - |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| TV Output | - | Yes | - | - |
| Video Calling | n/a | n/a | n/a | - |
| Power | ||||
| Fast Charging | - | Yes | Yes | - |
| Wireless Charging | - | Yes | Yes | - |
| Productivity | ||||
| Alarm | n/a | n/a | n/a | 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 | - |
| Voice Memo | n/a | n/a | n/a | Yes |
| Software | ||||
| BREW | n/a | n/a | n/a | Yes |
| Games | n/a | n/a | n/a | Yes |
| Java (J2ME) | n/a | n/a | n/a | - |
| Voice | ||||
| HD Voice | - | Yes | Yes | - |
| Headset Jack (2.5 mm) | n/a | n/a | n/a | Yes |
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Nokia N81 | Apple iPhone Xr | Sony Xperia XZ2 | Samsung Zeal / Alias 2 SCH-U750 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia N81 | Apple iPhone Xr | Sony Xperia XZ2 | Samsung Zeal / Alias 2 SCH-U750 |
