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| Phone | Samsung Galaxy Express 3 / Galaxy Amp 2 / Luna | Nokia Lumia 521 / 520 | ZTE Avail / Merit |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4.5" diag. 5 : 3 |
4" diag. 5 : 3 |
3.5" diag. 5 : 3 |
| Display Resolution & Type |
480 x 800 pixels (~207 ppi) AMOLED |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz |
| Battery | 2,050 mAh | 1,430 mAh | 1,500 mAh |
| Processor | 1.3 GHz Island | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 600 MHz Qualcomm Snapdragon S1 MSM7227-1 |
| RAM | 1 GB | 512 MB | 512 MB |
| Storage | 8 GB * | 8 GB | 512 MB |
| Main Camera | 5 megapixel | 5 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | 720p HD | VGA (640 x 480) |
| Front Camera | 2 megapixel | - | - |
| Weight |
4.62 oz (131g) |
4.39 oz (124g) |
4.48 oz (127g) |
| Dimensions |
5.22" x 2.73" x 0.35" (133 x 69 x 8.9 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
4.57" x 2.46" x 0.5" (116 x 62 x 12.7 mm) |
| Platform / OS | Android | Windows | Android |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | LTE (Cat 3) | HSPA+ 21 | HSPA 7.2 |
| Features | |||
| Flashlight | Yes | - | - |
| Accessibility | |||
| Hearing Aid Compatible | Yes | Yes | - |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth |
Yes Classic Audio |
Yes |
Yes Classic Audio |
| USB |
Yes Micro-USB |
Yes | Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes |
Yes 4 (802.11 b,g,n) |
| Input | |||
| Side Keys | Yes | Yes | Yes |
| Touch Screen | Yes | Yes | Yes |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Music | |||
| Headphone Jack (3.5mm) | Yes | Yes | Yes |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| Samsung Galaxy Express 3 / Galaxy Amp 2 / Luna | Nokia Lumia 521 / 520 | ZTE Avail / Merit | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy Express 3 / Galaxy Amp 2 / Luna | Nokia Lumia 521 / 520 | ZTE Avail / Merit |
