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| Phone | ZTE Flash | Motorola i670 | LG K40 / Harmony 3 | Samsung SGH-i250 | Nokia Lumia 521 / 520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Not yet released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
? |
5.7" diag. 18 : 9 |
? |
4" diag. 5 : 3 |
| Display Resolution & Type |
720 x 1280 pixels (~326 ppi) LCD (TFT/TFD) |
130 x 130 pixels LCD (TFT/TFD) |
720 x 1440 pixels (~282 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? | ? |
| Battery | 1,780 mAh | ? | 3,000 mAh | ? | 1,430 mAh |
| Processor | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 | ? | 1.8 GHz Qualcomm Snapdragon 450 | ? | 1 GHz Qualcomm Snapdragon S4 MSM8270 |
| RAM | 1 GB | ? | 2 GB | ? | 512 MB |
| Storage | 8 GB | ? raw hardware | 32 GB | ? raw hardware | 8 GB |
| Main Camera | 12 megapixel | - | 13 megapixel | 1 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 1080p HD | - | 1080p HD | ? | 720p HD |
| Front Camera | 1 megapixel | - | 5 megapixel | - | - |
| Weight |
5.2 oz (147g) |
4.06 oz (115g) |
5.11 oz (145g) |
4.59 oz (130g) |
4.39 oz (124g) |
| Dimensions |
5.27" x 2.56" x 0.38" (134 x 65 x 9.7 mm) |
3.46" x 2" x 1.02" (88 x 51 x 25.9 mm) |
6.02" x 2.83" x 0.32" (153 x 72 x 8.1 mm) |
3.7" x 1.97" x 1.02" (94 x 50 x 25.9 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
| Form Factor | Slab | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | Android | (proprietary) | Android | Windows Mobile Standard | Windows |
| Network Bands |
4G LTE: 25 CDMA: 800, 850, 1900 |
iDEN: 800 |
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 |
GSM: 900, 1800, 1900 |
|
| Data Technology | LTE (Cat 3) | WiDEN | LTE (Cat 6) | GPRS | HSPA+ 21 |
| Features | |||||
| Fingerprint Reader | - | - |
Yes stand-alone |
- | - |
| Flashlight | - | - | Yes | - | - |
| GPS / Location | n/a | Yes | n/a | n/a | n/a |
| Accessibility | |||||
| Adjustable Text Size | n/a | Yes | n/a | n/a | n/a |
| Hearing Aid Compatible | Yes | Yes | Yes | - | Yes |
| Multiple Languages | n/a | - | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | - | - | Yes | - |
| Ringer Profiles | - | Yes | - | Yes | - |
| Connectivity | |||||
| Bluetooth |
Yes Classic Audio |
- |
Yes Classic Audio |
Yes |
Yes |
| Mobile Hotspot | n/a | - | n/a | n/a | n/a |
| NFC | Yes | - | Yes * | - | - |
| USB |
Yes Micro-USB |
- |
Yes Micro-USB |
- | Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
- | Yes |
| Contacts | |||||
| Picture ID | n/a | - | n/a | n/a | n/a |
| Ringer ID | n/a | Yes | n/a | n/a | n/a |
| Voice Dialing | n/a | Yes | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | n/a | n/a |
| Custom Ringtones | n/a | Yes | n/a | n/a | n/a |
| Real-Music Ringers | n/a | - | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | n/a | Yes | n/a | n/a | n/a |
| WAP / Web Browser | n/a | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | Yes | - | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | 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 | Yes | n/a | n/a | n/a |
| Text Messaging Templates | n/a | Yes | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | - | Yes |
| Music Player | n/a | - | n/a | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | n/a | - | n/a | n/a | n/a |
| Calculator | n/a | - | n/a | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a | n/a |
| To-Do List | n/a | - | n/a | n/a | n/a |
| Voice Memo | n/a | Yes | n/a | n/a | n/a |
| Software | |||||
| Games | n/a | - | n/a | n/a | n/a |
| Java (J2ME) | n/a | Yes | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | Yes | - | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a | n/a |
| Push-To-Talk | - | Yes | - | - | - |
| Speaker Phone | Yes | Yes | Yes | - | Yes |
| * Some versions only | |||||
| ZTE Flash | Motorola i670 | LG K40 / Harmony 3 | Samsung SGH-i250 | Nokia Lumia 521 / 520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Flash | Motorola i670 | LG K40 / Harmony 3 | Samsung SGH-i250 | Nokia Lumia 521 / 520 |
