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| Phone | Nokia Lumia 521 / 520 | Nokia N78 | Samsung Focus Flash | Apple iPhone X | Samsung Galaxy J2 / J2 Pure / J2 Dash |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
2.4" diag. 4 : 3 |
3.7" diag. 5 : 3 |
5.8" diag. 19.5 : 9 |
5" diag. 16 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~252 ppi) AMOLED |
1125 x 2436 pixels (~463 ppi) AMOLED |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz | 60 Hz |
| Battery | 1,430 mAh | 1,200 mAh | 1,500 mAh | 2,716 mAh | 2,600 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 369 MHz ARM 11 | 1.4 GHz Qualcomm Snapdragon | Apple A11 | 1.4 GHz Samsung Exynos 7570 |
| RAM | 512 MB | ? | ? | 3 GB | 2 GB |
| Storage | 8 GB | ? raw hardware | 8 GB | 64 GB * | 16 GB |
| Main Camera | 5 megapixel | 3 megapixel | 5 megapixel | 12 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | Yes | - |
| Video Capture | 720p HD | VGA (640 x 480) | 720p HD | 4K UHD | 1080p HD |
| Front Camera | - | - | Yes | 7 megapixel | 5 megapixel |
| Weight |
4.39 oz (124g) |
3.59 oz (102g) |
4.1 oz (116g) |
6.14 oz (174g) |
5.43 oz (154g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
4.45" x 1.93" x 0.59" (113 x 49 x 15.1 mm) |
4.57" x 2.31" x 0.43" (116 x 59 x 10.9 mm) |
5.65" x 2.79" x 0.3" (144 x 71 x 7.6 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
| Platform / OS | Windows | S60 (Symbian) | Windows | iOS | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSPA+ 21 | HSDPA 3.6 | ? | LTE (Cat 9) | LTE (Cat 4) |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Flashlight | - | - | - | Yes | Yes |
| Water-Resistant | - | - | - |
Yes IPX7 (snorkeling) |
- |
| Accessibility | |||||
| Hearing Aid Compatible | Yes | - | - | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| NFC | - | - | - | Yes | - |
| USB | Yes |
Yes Micro-USB |
Yes | Yes |
Yes Micro-USB |
| Wi-Fi | Yes |
Yes 802.11 b,g |
Yes |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Input | |||||
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | Yes | - | Yes | Yes | Yes |
| Memory | |||||
| Memory Card Slot | Yes | Yes | - | - | Yes |
| Music | |||||
| FM Radio | - | Yes | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - | Yes |
| Stereo Speakers | - | Yes | - | Yes | - |
| Photo & Video | |||||
| TV Output | - | Yes | - | Yes | - |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Wireless Charging | - | - | - | Yes | - |
| Voice | |||||
| HD Voice | - | - | - | Yes | - |
| Push-To-Talk | - | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Nokia Lumia 521 / 520 | Nokia N78 | Samsung Focus Flash | Apple iPhone X | Samsung Galaxy J2 / J2 Pure / J2 Dash | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | Nokia N78 | Samsung Focus Flash | Apple iPhone X | Samsung Galaxy J2 / J2 Pure / J2 Dash |
