Compare Phones
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| Phone | Nokia Lumia 521 / 520 | Sony Ericsson T61c | LG K40 / Harmony 3 | Coolpad Quattro 4G | 
| Current U.S. Carriers | (none) | (none) | (none) | (none) | 
| Global Availability | Released | Released | Released | Released | 
| Specifications | ||||
|---|---|---|---|---|
| Display Size | 4" diag. 5 : 3 | ? | 5.7" diag. 18 : 9 | 4" diag. 5 : 3 | 
| Display Resolution & Type | 480 x 800 pixels (~233 ppi) LCD (TFT/TFD) | ? | 720 x 1440 pixels (~282 ppi) LCD (TFT/TFD) | 480 x 800 pixels (~233 ppi) LCD (TFT/TFD) | 
| Display Refresh | ? | ? | 60 Hz | 60 Hz | 
| Battery | 1,430 mAh | ? | 3,000 mAh | 1,600 mAh | 
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | ? | 1.8 GHz Qualcomm Snapdragon 450 | ? | 
| RAM | 512 MB | ? | 2 GB | ? | 
| Storage | 8 GB | ? raw hardware | 32 GB | 512 MB | 
| Main Camera | 5 megapixel | - | 13 megapixel | 3 megapixel | 
| Wide Camera | - | - | - | - | 
| Tele Camera | - | - | - | - | 
| Video Capture | 720p HD | - | 1080p HD | VGA (640 x 480) | 
| Front Camera | - | - | 5 megapixel | Yes | 
| Weight | 4.39 oz (124g) | 4.4 oz (125g) | 5.11 oz (145g) | 3.31 oz (94g) | 
| Dimensions | 4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) | 4.8" x 2.13" x 0.92" (122 x 54 x 23.4 mm) | 6.02" x 2.83" x 0.32" (153 x 72 x 8.1 mm) | 4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) | 
| Form Factor | Slab | Slab | Slab | Slab | 
| Platform / OS | Windows | (proprietary) | Android | Android | 
| Network Bands | CDMA: 850, 1900 AMPS: 850 | 4G LTE: 2, 4, 5, 12, 13, 14, 25, 26, 29, 30, 41, 66, 71 WCDMA: 2, 4, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 | 4G LTE: 2, 4 CDMA: 850, 1700, 1900 | |
| Data Technology | HSPA+ 21 | 1xRTT | LTE (Cat 6) | LTE (Cat 3) | 
| Features | ||||
| Fingerprint Reader | - | - | Yes stand-alone | - | 
| Flashlight | - | - | Yes | - | 
| GPS / Location | n/a | Yes | n/a | n/a | 
| Accessibility | ||||
| Hearing Aid Compatible | Yes | - | Yes | Yes | 
| Multiple Languages | n/a | Yes | n/a | n/a | 
| TTY/TDD (Digital) | Yes | - | Yes | Yes | 
| Alerts | ||||
| Ringer Profiles | - | Yes | - | - | 
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes Classic Audio | Yes Classic Audio | 
| Mobile Hotspot | n/a | - | n/a | n/a | 
| NFC | - | - | Yes * | - | 
| USB | Yes | - | Yes Micro-USB | Yes | 
| Wi-Fi | Yes | - | Yes 5 (802.11 a,ac,b,g,n) | Yes | 
| Contacts | ||||
| Picture ID | n/a | - | n/a | n/a | 
| Ringer ID | n/a | - | n/a | n/a | 
| Voice Dialing | n/a | Yes | n/a | n/a | 
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - | 
| Custom Graphics | n/a | Yes | n/a | n/a | 
| Custom Ringtones | n/a | Yes | n/a | n/a | 
| Real-Music Ringers | n/a | - | n/a | n/a | 
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | n/a | 
| WAP / Web Browser | n/a | Yes | n/a | n/a | 
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | 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 | 
| EMS / Picture Messaging | n/a | Yes | n/a | n/a | 
| Instant Messaging | n/a | - | n/a | n/a | 
| MMS | n/a | - | n/a | n/a | 
| Text Messaging Templates | n/a | Yes | n/a | n/a | 
| Music | ||||
| FM Radio | - | - | Yes | - | 
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes | 
| Music Player | n/a | - | n/a | n/a | 
| Photo & Video | ||||
| DLNA | - | - | Yes | - | 
| Productivity | ||||
| Alarm | n/a | Yes | n/a | n/a | 
| Calculator | n/a | Yes | n/a | n/a | 
| Calendar | n/a | Yes | n/a | n/a | 
| To-Do List | n/a | - | n/a | n/a | 
| Voice Memo | n/a | Yes | n/a | n/a | 
| Software | ||||
| Games | n/a | Yes | n/a | n/a | 
| Voice | ||||
| HD Voice | - | - | Yes | - | 
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a | 
| Speaker Phone | Yes | - | Yes | Yes | 
| * Some versions only | ||||
| Nokia Lumia 521 / 520 | Sony Ericsson T61c | LG K40 / Harmony 3 | Coolpad Quattro 4G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
|  |  |  |  | |
| Phone | Nokia Lumia 521 / 520 | Sony Ericsson T61c | LG K40 / Harmony 3 | Coolpad Quattro 4G | 
 







