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| Phone | Samsung Knack U310 | ZTE Z998 / Unico LTE | Samsung Galaxy S6 (GSM) | Samsung MM-A900 / SPH-A900 / Ace | LG VX-6100 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
4.5" diag. 16 : 9 |
5.1" diag. 16 : 9 |
? | ? |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~576 ppi) AMOLED |
240 x 320 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? | ? |
| Battery | 1,000 mAh | 2,070 mAh | 2,550 mAh | ? | 1,000 mAh |
| Processor | ? | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | 2.1 GHz Samsung Exynos 7420 | ? | ? |
| RAM | ? | 1 GB | 3 GB | ? | ? |
| Storage | ? raw hardware | 4 GB | 32 GB * | ? raw hardware | ? raw hardware |
| Main Camera | - | 5 megapixel | 16 megapixel | 1 megapixel | Yes |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 720p HD | 4K UHD | ? | - |
| Front Camera | - | 1 megapixel | 5 megapixel | - | - |
| Weight |
3.63 oz (103g) |
4.8 oz (136g) |
4.87 oz (138g) |
3.9 oz (111g) |
3.88 oz (110g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm) |
3.56" x 1.9" x 0.94" (90 x 48 x 23.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell | Clamshell |
| Platform / OS | (proprietary) | Android | Android | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
||
| Data Technology | - | LTE (Cat 3) | LTE (Cat 6) | EVDO r0 | 1xRTT |
| Features | |||||
| Fingerprint Reader | - | - | Yes | - | - |
| Flashlight | - | - | Yes | - | - |
| GPS / Location | Yes | n/a | n/a | Yes | Yes |
| VR-ready | - | - | Yes | - | - |
| Accessibility | |||||
| Adjustable Text Size | Yes | n/a | n/a | - | - |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- | - |
| Multiple Languages | Yes | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | Yes | - | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | - |
| Infrared (IR) | - | - | Yes | - | - |
| MirrorLink | - | - | Yes | - | - |
| Mobile Hotspot | - | n/a | n/a | - | - |
| NFC | - | - | Yes | - | - |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes | Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- | - |
| Contacts | |||||
| Picture ID | - | n/a | n/a | Yes | Yes |
| Ringer ID | - | n/a | n/a | Yes | Yes |
| Voice Dialing | Yes | n/a | n/a | Yes | Yes |
| Customization | |||||
| Custom Graphics | - | n/a | n/a | Yes | Yes |
| Custom Ringtones | - | n/a | n/a | Yes | Yes |
| Real-Music Ringers | - | n/a | n/a | - | - |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | Yes | Yes |
| WAP / Web Browser | - | n/a | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
- | - |
| Memory | |||||
| Memory Card Slot | - | Yes | - | - | - |
| Messaging | |||||
| Email Client | - | n/a | n/a | - | - |
| EMS / Picture Messaging | Yes | n/a | n/a | - | Yes |
| Instant Messaging | - | n/a | n/a | - | - |
| MMS | - | n/a | n/a | - | Yes |
| Text Messaging Templates | - | n/a | n/a | Yes | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | Yes | - | - |
| Music Player | - | n/a | n/a | Yes | - |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| Miracast | - | - | Yes | - | - |
| TV Output | - | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Wireless Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | Yes |
| Calculator | Yes | n/a | n/a | Yes | Yes |
| Calendar | Yes | n/a | n/a | Yes | Yes |
| To-Do List | - | n/a | n/a | Yes | - |
| Voice Memo | - | n/a | n/a | Yes | Yes |
| Software | |||||
| BREW | - | n/a | n/a | - | Yes |
| Games | - | n/a | n/a | Yes | Yes |
| Java (J2ME) | - | n/a | n/a | Yes | - |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung Knack U310 | ZTE Z998 / Unico LTE | Samsung Galaxy S6 (GSM) | Samsung MM-A900 / SPH-A900 / Ace | LG VX-6100 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | ZTE Z998 / Unico LTE | Samsung Galaxy S6 (GSM) | Samsung MM-A900 / SPH-A900 / Ace | LG VX-6100 |
