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| Phone | Nokia Lumia 521 / 520 | Sony Xperia XZ1 | BlackBerry Key2 | Motorola Moto z4 | T-Mobile REVVL V |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
5.2" diag. 16 : 9 |
4.5" diag. 5 : 3 |
6.4" diag. 19.5 : 9 |
6.5" diag. 20 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~424 ppi) LCD (TFT/TFD) |
1080 x 1620 pixels (~433 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~403 ppi) AMOLED |
720 x 1600 pixels (~269 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
| Battery | 1,430 mAh | 2,700 mAh | 3,500 mAh | 3,600 mAh | 4,000 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) | 2.2 GHz Qualcomm Snapdragon 660 | 2 GHz Qualcomm Snapdragon 675 | 2 GHz MediaTek Helio G25 (MT6762V) |
| RAM | 512 MB | 4 GB | 6 GB | 4 GB | 3 GB |
| Storage | 8 GB | 64 GB | 64 GB * | 128 GB | 32 GB |
| Main Camera | 5 megapixel | 19 megapixel | 12 megapixel | 48 megapixel | 13 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | 12 megapixel | - | - |
| Video Capture | 720p HD | 4K UHD | 4K UHD | 4K UHD | 1080p HD |
| Front Camera | - | 13 megapixel | 8 megapixel | 25 megapixel | 5 megapixel |
| Weight |
4.39 oz (124g) |
5.5 oz (156g) |
5.93 oz (168g) |
6 oz (170g) |
6.45 oz (183g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
5.82" x 2.89" x 0.29" (148 x 73 x 7.4 mm) |
5.96" x 2.82" x 0.33" (151 x 72 x 8.4 mm) |
6.22" x 2.96" x 0.29" (158 x 75 x 7.4 mm) |
6.57" x 3.01" x 0.34" (167 x 76 x 8.6 mm) |
| Platform / OS | Windows | Android | Android | Android | Android |
| Network Bands |
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 |
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 |
4G LTE: 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 29, 30, 38, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 25, 26, 41, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSPA+ 21 | LTE (Cat 16) | LTE (Cat 11) | LTE (Cat 12) | LTE (Cat 6) |
| Features | |||||
| Barometer | - | Yes | - | - | - |
| Fingerprint Reader | - |
Yes * stand-alone |
Yes stand-alone |
Yes |
Yes stand-alone |
| Flashlight | - | Yes | Yes | Yes | Yes |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
- | Yes | - |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| NFC | - | Yes | Yes | Yes | - |
| USB | Yes |
Yes USB Type C |
Yes USB Type C |
Yes USB Type C |
Yes USB Type C |
| Wi-Fi | Yes |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Data & Network | |||||
| Dual-SIM | - | Yes * | - | - | - |
| Input | |||||
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - | - |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | Yes | Yes |
| Music | |||||
| FM Radio | - | - | Yes | Yes | Yes |
| Headphone Jack (3.5mm) | Yes | Yes | Yes | Yes | Yes |
| Stereo Speakers | - | Yes | - | - | - |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - |
| Miracast | - | Yes | - | - | - |
| TV Output | - | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | Yes | Yes | Yes | Yes |
| Voice | |||||
| HD Voice | - | Yes | Yes | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Nokia Lumia 521 / 520 | Sony Xperia XZ1 | BlackBerry Key2 | Motorola Moto z4 | T-Mobile REVVL V | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | Sony Xperia XZ1 | BlackBerry Key2 | Motorola Moto z4 | T-Mobile REVVL V |
