Compare Phones
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| Phone | Nokia Lumia 521 / 520 | HTC Wildfire S (CDMA) | ZTE Avid 4 | Samsung SGH-E640 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
3.2" diag. 5 : 3 |
5" diag. 16 : 9 |
? |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? |
| Battery | 1,430 mAh | 1,230 mAh | 2,520 mAh | 800 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 600 MHz Qualcomm S4 Plus MSM8227 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? |
| RAM | 512 MB | ? | 2 GB | ? |
| Storage | 8 GB | 512 MB | 16 GB | ? raw hardware |
| Main Camera | 5 megapixel | 5 megapixel | 8 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | WVGA / 480p | 720p HD | QCIF (176 x 144) |
| Front Camera | - | - | 5 megapixel | - |
| Weight |
4.39 oz (124g) |
3.7 oz (105g) |
5.6 oz (159g) |
3.17 oz (90g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
3.99" x 2.34" x 0.49" (101 x 59 x 12.4 mm) |
5.7" x 2.8" x 0.36" (145 x 71 x 9.1 mm) |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
| Form Factor | Slab | Slab | Slab | Clamshell |
| Platform / OS | Windows | Android | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
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| Data Technology | HSPA+ 21 | EVDO rA | LTE (Cat 4) | GPRS |
| Features | ||||
| Flashlight | - | - | Yes | - |
| GPS / Location | n/a | n/a | n/a | - |
| Accessibility | ||||
| Hearing Aid Compatible | Yes | Yes | Yes | - |
| Multiple Languages | n/a | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | n/a | n/a | - |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | Yes |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | n/a | n/a | Yes |
| Ringer ID | n/a | n/a | n/a | Yes |
| Voice Dialing | n/a | n/a | n/a | - |
| Customization | ||||
| Custom Graphics | n/a | n/a | n/a | Yes |
| Custom Ringtones | n/a | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | n/a | n/a | - |
| WAP / Web Browser | n/a | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | Yes | Yes | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | n/a | n/a | Yes |
| EMS / Picture Messaging | n/a | n/a | n/a | Yes |
| Instant Messaging | n/a | n/a | n/a | - |
| MMS | n/a | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | n/a | Yes |
| Music | ||||
| FM Radio | - | Yes * | Yes | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - |
| Music Player | n/a | n/a | n/a | Yes |
| Productivity | ||||
| Alarm | n/a | n/a | n/a | Yes |
| Calculator | n/a | n/a | n/a | Yes |
| Calendar | n/a | n/a | n/a | Yes |
| To-Do List | n/a | n/a | n/a | Yes |
| Voice Memo | n/a | n/a | n/a | Yes |
| Software | ||||
| Games | n/a | n/a | n/a | Yes |
| Java (J2ME) | n/a | n/a | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Nokia Lumia 521 / 520 | HTC Wildfire S (CDMA) | ZTE Avid 4 | Samsung SGH-E640 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | HTC Wildfire S (CDMA) | ZTE Avid 4 | Samsung SGH-E640 |
