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| Phone | Samsung Knack U310 | Samsung Galaxy Alpha | Motorola V220 | Asus ZenFone AR | Motorola Backflip |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
4.7" diag. 16 : 9 |
? |
5.7" diag. 16 : 9 |
3.1" diag. 5 : 3 |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) AMOLED |
128 x 128 pixels LCD (STN) |
1440 x 2560 pixels (~515 ppi) AMOLED |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz | 60 Hz |
| Battery | 1,000 mAh | 1,860 mAh | 820 mAh | 3,300 mAh | 1,400 mAh |
| Processor | ? | 2.5 GHz Qualcomm Snapdragon 801 (MSM8974-AC) | ? | 2.4 GHz Qualcomm Snapdragon 821 (MSM8996) | 528 MHz Qualcomm MSM7201a |
| RAM | ? | 2 GB | ? | 6 GB * | ? |
| Storage | ? raw hardware | 32 GB | ? raw hardware | 128 GB * | ? raw hardware |
| Main Camera | - | 12 megapixel | Yes | 23 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 4K UHD | - | 4K UHD | CIF (352 x 288) |
| Front Camera | - | 2 megapixel | - | 8 megapixel | - |
| Weight |
3.63 oz (103g) |
4.06 oz (115g) |
3.7 oz (105g) |
6 oz (170g) |
4.7 oz (133g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
5.21" x 2.58" x 0.26" (132 x 66 x 6.7 mm) |
3.29" x 1.73" x 0.94" (84 x 44 x 23.9 mm) |
6.24" x 3.05" x 0.3" (158 x 77 x 7.6 mm) |
4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | Android | (proprietary) | Android | Android |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
|
| Data Technology | - | LTE (Cat 4) | GPRS | LTE (Cat 11) | HSPA 7.2 |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | Yes | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | - | Yes | - |
| GPS / Location | Yes | n/a | - | n/a | n/a |
| VR-ready | - | - | - | Yes | - |
| Accessibility | |||||
| Adjustable Text Size | Yes | n/a | - | n/a | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | - | - | - |
| Alerts | |||||
| Extra Display | Yes | - | Yes | - | - |
| Ringer Profiles | - | - | Yes | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | - | Yes | Yes |
| Mobile Hotspot | - | n/a | - | n/a | n/a |
| NFC | - | Yes | - | Yes | - |
| USB | - | Yes | Yes |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 802.11 b,g |
| Contacts | |||||
| Picture ID | - | n/a | Yes | n/a | n/a |
| Ringer ID | - | n/a | Yes | n/a | n/a |
| Voice Dialing | Yes | n/a | Yes | n/a | n/a |
| Customization | |||||
| Custom Graphics | - | n/a | Yes | n/a | n/a |
| Custom Ringtones | - | n/a | Yes | n/a | n/a |
| Real-Music Ringers | - | n/a | Yes | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | Yes | n/a | n/a |
| Dual-SIM | - | - | - | Yes | - |
| WAP / Web Browser | - | n/a | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | - | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | - | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | Yes | n/a | n/a |
| Instant Messaging | - | n/a | Yes | n/a | n/a |
| MMS | - | n/a | Yes | n/a | n/a |
| Text Messaging Templates | - | n/a | Yes | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes | Yes |
| Music Player | - | n/a | - | n/a | n/a |
| Stereo Speakers | - | Yes | - | - | - |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | - |
| Miracast | - | - | - | Yes | - |
| TV Output | - | Yes | - | - | - |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | n/a | n/a |
| Calculator | Yes | n/a | Yes | n/a | n/a |
| Calendar | Yes | n/a | Yes | n/a | n/a |
| Voice Memo | - | n/a | - | n/a | n/a |
| Software | |||||
| Games | - | n/a | Yes | n/a | n/a |
| Java (J2ME) | - | n/a | Yes | n/a | n/a |
| Voice | |||||
| HD Voice | - | Yes | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | Yes | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung Knack U310 | Samsung Galaxy Alpha | Motorola V220 | Asus ZenFone AR | Motorola Backflip | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | Samsung Galaxy Alpha | Motorola V220 | Asus ZenFone AR | Motorola Backflip |
