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| Phone | BlackBerry Key2 | Samsung SGH-X640 | Sony Xperia XZ1 | Nokia Lumia 521 / 520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.5" diag. 5 : 3 |
? |
5.2" diag. 16 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
1080 x 1620 pixels (~433 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 1920 pixels (~424 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 3,500 mAh | 800 mAh | 2,700 mAh | 1,430 mAh |
| Processor | 2.2 GHz Qualcomm Snapdragon 660 | ? | 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) | 1 GHz Qualcomm Snapdragon S4 MSM8270 |
| RAM | 6 GB | ? | 4 GB | 512 MB |
| Storage | 64 GB * | ? raw hardware | 64 GB | 8 GB |
| Main Camera | 12 megapixel | Yes | 19 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | 12 megapixel | - | - | - |
| Video Capture | 4K UHD | - | 4K UHD | 720p HD |
| Front Camera | 8 megapixel | - | 13 megapixel | - |
| Weight |
5.93 oz (168g) |
3 oz (85g) |
5.5 oz (156g) |
4.39 oz (124g) |
| Dimensions |
5.96" x 2.82" x 0.33" (151 x 72 x 8.4 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.82" x 2.89" x 0.29" (148 x 73 x 7.4 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | Android | (proprietary) | Android | Windows |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 28, 29, 30, 38, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | LTE (Cat 11) | GPRS | LTE (Cat 16) | HSPA+ 21 |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader |
Yes stand-alone |
- |
Yes * stand-alone |
- |
| Flashlight | Yes | - | Yes | - |
| GPS / Location | n/a | - | n/a | n/a |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Mobile Hotspot | n/a | - | n/a | n/a |
| NFC | Yes | - | Yes | - |
| USB |
Yes USB Type C |
- |
Yes USB Type C |
Yes |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
Yes |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | n/a |
| Ringer ID | n/a | Yes | n/a | n/a |
| Voice Dialing | n/a | - | n/a | n/a |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | n/a |
| Custom Ringtones | n/a | Yes | n/a | n/a |
| Real-Music Ringers | n/a | - | n/a | n/a |
| Data & Network | ||||
| Data Tethering | n/a | - | 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 |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | - | n/a | n/a |
| EMS / Picture Messaging | n/a | Yes | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a |
| MMS | n/a | Yes | n/a | n/a |
| Text Messaging Templates | n/a | Yes | n/a | n/a |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes |
| Music Player | n/a | - | n/a | n/a |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| TV Output | Yes | - | - | - |
| Power | ||||
| Fast Charging | Yes | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | n/a |
| Calculator | n/a | Yes | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a |
| To-Do List | n/a | Yes | n/a | n/a |
| Voice Memo | n/a | Yes | n/a | n/a |
| Software | ||||
| Games | n/a | Yes | n/a | n/a |
| Java (J2ME) | n/a | Yes | n/a | n/a |
| Voice | ||||
| HD Voice | Yes | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| BlackBerry Key2 | Samsung SGH-X640 | Sony Xperia XZ1 | Nokia Lumia 521 / 520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | BlackBerry Key2 | Samsung SGH-X640 | Sony Xperia XZ1 | Nokia Lumia 521 / 520 |
