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| Phone | Samsung Knack U310 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Sharp Z-800 (Audiovox 7900) | ZTE Blade Vantage 2 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
5" diag. 16 : 9 |
? |
5" diag. 18 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
? LCD (Color) |
480 x 960 pixels (~215 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,000 mAh | 2,600 mAh | ? | 2,050 mAh |
| Processor | ? | 1.4 GHz Samsung Exynos 7570 | ? | 2 GHz MediaTek MT6761 |
| RAM | ? | 2 GB | ? | 2 GB |
| Storage | ? raw hardware | 16 GB | ? raw hardware | 16 GB |
| Main Camera | - | 8 megapixel | - | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | 1080p HD | - | 720p HD |
| Front Camera | - | 5 megapixel | - | 2 megapixel |
| Weight |
3.63 oz (103g) |
5.43 oz (154g) |
4.25 oz (120g) |
5.3 oz (150g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
3.6" x 2" x 1.1" (91 x 51 x 27.9 mm) |
5.4" x 2.7" x 0.41" (137 x 69 x 10.4 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 2, 4, 5, 13 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | - | LTE (Cat 4) | - | LTE (Cat 4) |
| Features | ||||
| Flashlight | - | Yes | - | Yes |
| GPS / Location | Yes | n/a | - | n/a |
| Accessibility | ||||
| Adjustable Text Size | Yes | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | - | n/a |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| USB | - |
Yes Micro-USB |
- |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | - | n/a | Yes | n/a |
| Ringer ID | - | n/a | Yes | n/a |
| Voice Dialing | Yes | n/a | - | n/a |
| Customization | ||||
| Custom Graphics | - | n/a | Yes | n/a |
| Custom Ringtones | - | n/a | Yes | n/a |
| Data & Network | ||||
| Data Tethering | - | n/a | Yes | n/a |
| WAP / Web Browser | - | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| EMS / Picture Messaging | Yes | n/a | - | n/a |
| Text Messaging Templates | - | n/a | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | n/a |
| Calculator | Yes | n/a | - | n/a |
| Calendar | Yes | n/a | - | n/a |
| Software | ||||
| BREW | - | n/a | Yes | n/a |
| Games | - | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | - | Yes |
| Samsung Knack U310 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Sharp Z-800 (Audiovox 7900) | ZTE Blade Vantage 2 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Sharp Z-800 (Audiovox 7900) | ZTE Blade Vantage 2 |
