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| Phone | Nokia Lumia 521 / 520 | Alcatel PulseMix / A50 / A5 | Motorola i580 | Coolpad Defiant | ZTE Avid 4 |
| 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 |
? |
5" diag. 16 : 9 |
5" diag. 16 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~282 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz | 60 Hz |
| Battery | 1,430 mAh | 2,800 mAh | ? | 2,450 mAh | 2,520 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 1.5 GHz MT6738 | ? | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | 512 MB | 2 GB | ? | 1 GB | 2 GB |
| Storage | 8 GB | 16 GB | ? raw hardware | 8 GB | 16 GB |
| Main Camera | 5 megapixel | 8 megapixel | 1 megapixel | 5 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 720p HD | 1080p HD | ? | 720p HD | 720p HD |
| Front Camera | - | 2 megapixel | - | 2 megapixel | 5 megapixel |
| Weight |
4.39 oz (124g) |
5.14 oz (146g) |
4.9 oz (139g) |
6.5 oz (184g) |
5.6 oz (159g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
5.75" x 2.84" x 0.31" (146 x 72 x 7.9 mm) |
3.68" x 2.2" x 1.2" (93 x 56 x 30.5 mm) |
5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm) |
5.7" x 2.8" x 0.36" (145 x 71 x 9.1 mm) |
| Form Factor | Slab | Slab | Clamshell | Slab | Slab |
| Platform / OS | Windows | Android | (proprietary) | Android | Android |
| Network Bands |
4G LTE: 1, 2, 4, 5, 7, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
iDEN: 800 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSPA+ 21 | LTE (Cat 4) | WiDEN | LTE (Cat 4) | LTE (Cat 4) |
| Features | |||||
| Flashlight | - | Yes | - | Yes | Yes |
| GPS / Location | n/a | n/a | Yes | n/a | n/a |
| Ruggedized | - | - | Yes | - | - |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | - | Yes | - | - |
| Ringer Profiles | - | - | Yes | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | n/a | - | n/a | n/a |
| USB | Yes |
Yes USB Type C |
- |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | Yes |
Yes 4 (802.11 a,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | n/a | n/a | Yes | n/a | n/a |
| Ringer ID | n/a | n/a | Yes | n/a | n/a |
| Voice Dialing | n/a | n/a | Yes | n/a | n/a |
| Customization | |||||
| Custom Graphics | n/a | n/a | Yes | n/a | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a | n/a |
| Real-Music Ringers | n/a | n/a | - | n/a | n/a |
| Data & Network | |||||
| Data Tethering | n/a | n/a | Yes | n/a | n/a |
| WAP / Web Browser | n/a | n/a | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | n/a | n/a | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | n/a | - | n/a | n/a |
| Instant Messaging | n/a | n/a | - | n/a | n/a |
| MMS | n/a | n/a | Yes | n/a | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a | n/a |
| Music | |||||
| FM Radio | - | Yes | - | - | Yes |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes | Yes |
| Music Player | n/a | n/a | Yes * | n/a | n/a |
| Productivity | |||||
| Alarm | n/a | n/a | - | n/a | n/a |
| Calculator | n/a | n/a | Yes * | n/a | n/a |
| Calendar | n/a | n/a | Yes | n/a | n/a |
| To-Do List | n/a | n/a | - | n/a | n/a |
| Voice Memo | n/a | n/a | Yes | n/a | n/a |
| Software | |||||
| Games | n/a | n/a | Yes | n/a | n/a |
| Java (J2ME) | n/a | n/a | Yes | n/a | n/a |
| Voice | |||||
| HD Voice | - | Yes | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a | n/a |
| Push-To-Talk | - | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Nokia Lumia 521 / 520 | Alcatel PulseMix / A50 / A5 | Motorola i580 | Coolpad Defiant | ZTE Avid 4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | Alcatel PulseMix / A50 / A5 | Motorola i580 | Coolpad Defiant | ZTE Avid 4 |
