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| Phone | Nokia Lumia 521 / 520 | PCD Chaser | UTStarcom Slice PCS-1400 | ZTE Blade Spark |
| 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 |
? |
5.5" diag. 16 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
720 x 1280 pixels (~267 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,430 mAh | 1,450 mAh | 900 mAh | 3,140 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 800 MHz Qualcomm MSM7627T | ? | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) |
| RAM | 512 MB | 512 MB | ? | 2 GB |
| Storage | 8 GB | 512 MB | ? raw hardware | 16 GB |
| Main Camera | 5 megapixel | 3 megapixel | - | 13 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | ? | - | 1080p HD |
| Front Camera | - | - | - | 5 megapixel |
| Weight |
4.39 oz (124g) |
4.2 oz (119g) |
2.3 oz (65g) |
6.12 oz (173g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
4.5" x 2.25" x 0.52" (114 x 57 x 13.2 mm) |
4.3" x 1.8" x 0.4" (109 x 46 x 10.2 mm) |
6.14" x 3.06" x 0.38" (156 x 78 x 9.7 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | Windows | Android | (proprietary) | Android |
| Network Bands |
CDMA: 1900 |
CDMA: 1900 |
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| Data Technology | HSPA+ 21 | EVDO rA | 1xRTT | LTE (Cat 4) |
| Features | ||||
| Fingerprint Reader | - | - | - |
Yes stand-alone |
| Flashlight | - | - | - | Yes |
| GPS / Location | n/a | n/a | Yes | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | Yes | Yes | - | Yes |
| Multiple Languages | n/a | n/a | - | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| Mobile Hotspot | n/a | n/a | - | n/a |
| USB | Yes | Yes | - |
Yes USB Type C |
| Wi-Fi | Yes |
Yes 802.11 b,g |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | n/a | n/a | - | n/a |
| Ringer ID | n/a | n/a | Yes | n/a |
| Voice Dialing | n/a | n/a | - | n/a |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a |
| Real-Music Ringers | n/a | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | n/a | n/a | - | n/a |
| External Antenna Jack | n/a | n/a | Yes | n/a |
| WAP / Web Browser | n/a | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | n/a |
| 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 |
| Instant Messaging | n/a | n/a | - | n/a |
| MMS | n/a | n/a | - | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Music Player | n/a | n/a | - | n/a |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | - | n/a |
| Voice Memo | n/a | n/a | - | n/a |
| Software | ||||
| Games | n/a | n/a | Yes | n/a |
| Java (J2ME) | n/a | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Nokia Lumia 521 / 520 | PCD Chaser | UTStarcom Slice PCS-1400 | ZTE Blade Spark | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | PCD Chaser | UTStarcom Slice PCS-1400 | ZTE Blade Spark |
