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| Phone | Samsung Knack U310 | ZTE Grand X 3 | Samsung SPH-N400 | Samsung SPH-A250 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Not yet released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
5.5" diag. 16 : 9 |
? | ? |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~267 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
? |
| Display Refresh | ? | 60 Hz | ? | ? |
| Battery | 1,000 mAh | 3,080 mAh | ? | ? |
| Processor | ? | 1.3 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | ? |
| RAM | ? | 2 GB | ? | ? |
| Storage | ? raw hardware | 16 GB | ? raw hardware | ? raw hardware |
| Main Camera | - | 8 megapixel | - | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | 720p HD | - | - |
| Front Camera | - | 2 megapixel | - | - |
| Weight |
3.63 oz (103g) |
6 oz (170g) |
4 oz (113g) |
2.82 oz (80g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
6.07" x 2.99" x 0.37" (154 x 76 x 9.4 mm) |
4.25" x 2.04" x 0.82" (108 x 52 x 20.8 mm) |
2.76" x 1.91" x 0.83" (70 x 49 x 21.1 mm) |
| Form Factor | Clamshell | Slab | Flip | Clamshell |
| Platform / OS | (proprietary) | Android | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 1900 |
| Data Technology | - | LTE (Cat 4) | 1xRTT | - |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | Yes | n/a | Yes | - |
| Accessibility | ||||
| Adjustable Text Size | Yes | n/a | - | - |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- | - |
| Multiple Languages | Yes | n/a | Yes | - |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | - | - |
| USB | - |
Yes USB Type C |
Yes | - |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | ||||
| Picture ID | - | n/a | Yes | - |
| Ringer ID | - | n/a | Yes | - |
| Voice Dialing | Yes | n/a | Yes | Yes |
| Customization | ||||
| Custom Graphics | - | n/a | Yes | - |
| Custom Ringtones | - | n/a | Yes | - |
| Data & Network | ||||
| Data Tethering | - | n/a | Yes | Yes |
| WAP / Web Browser | - | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
- | - |
| Memory | ||||
| Memory Card Slot | - | Yes | - | - |
| Messaging | ||||
| EMS / Picture Messaging | Yes | n/a | - | - |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | - |
| Power | ||||
| Fast Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes |
| To-Do List | - | n/a | Yes | Yes |
| Software | ||||
| Games | - | n/a | Yes | - |
| Java (J2ME) | - | n/a | Yes | - |
| Voice | ||||
| HD Voice | - | Yes | - | - |
| Headset Jack (2.5 mm) | Yes | n/a | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes | - |
| Samsung Knack U310 | ZTE Grand X 3 | Samsung SPH-N400 | Samsung SPH-A250 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | ZTE Grand X 3 | Samsung SPH-N400 | Samsung SPH-A250 |
