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| Phone | Samsung Knack U310 | Motorola Droid RAZR MAXX HD | LG eXpo GW820 | Samsung Memoir SGH-T929 | 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 |
3.2" diag. 5 : 3 |
3.1" diag. 5 : 3 |
3.1" diag. 5 : 3 |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) AMOLED |
480 x 800 pixels (~292 ppi) LCD (TFT/TFD) |
240 x 400 pixels (~150 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? | 60 Hz |
| Battery | 1,000 mAh | 3,300 mAh | 1,500 mAh | ? | 1,400 mAh |
| Processor | ? | ? | ? | ? | 528 MHz Qualcomm MSM7201a |
| RAM | ? | 1 GB | ? | ? | ? |
| Storage | ? raw hardware | 32 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 8 megapixel | 5 megapixel | 8 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | ? | ? | CIF (352 x 288) |
| Front Camera | - | 1 megapixel | - | - | - |
| Weight |
3.63 oz (103g) |
5.54 oz (157g) |
5.2 oz (147g) |
4.4 oz (125g) |
4.7 oz (133g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
5.19" x 2.67" x 0.37" (132 x 68 x 9.3 mm) |
4.45" x 2.16" x 0.63" (113 x 55 x 16 mm) |
4.17" x 2.11" x 0.55" (106 x 54 x 14 mm) |
4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | Android | Windows Mobile Professional | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | LTE (Cat 3) | HSPA 7.2 | HSDPA 3.6 | HSPA 7.2 |
| Features | |||||
| Fingerprint Reader | - | - | Yes | - | - |
| GPS / Location | Yes | n/a | n/a | Yes | n/a |
| Accessibility | |||||
| Adjustable Text Size | Yes | n/a | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | - |
| Alerts | |||||
| Extra Display | Yes | - | - | - | - |
| Ringer Profiles | - | - | Yes | Yes | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | - | n/a |
| NFC | - | Yes | - | - | - |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
Yes 802.11 b,g |
- |
Yes 802.11 b,g |
| Contacts | |||||
| Picture ID | - | n/a | n/a | Yes | n/a |
| Ringer ID | - | n/a | n/a | - | n/a |
| Voice Dialing | Yes | n/a | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | - | n/a | n/a | Yes | n/a |
| Custom Ringtones | - | n/a | n/a | Yes | n/a |
| Real-Music Ringers | - | n/a | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | - | n/a |
| WAP / Web Browser | - | n/a | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Resistive |
Yes |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | Yes | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | - | n/a |
| Instant Messaging | - | n/a | n/a | Yes | n/a |
| MMS | - | n/a | n/a | Yes | n/a |
| Text Messaging Templates | - | n/a | n/a | Yes | n/a |
| Music | |||||
| FM Radio | - | - | Yes | - | - |
| Headphone Jack (3.5mm) | - | Yes | - | - | Yes |
| Music Player | - | n/a | n/a | Yes | n/a |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - |
| TV Output | - | Yes | Yes | Yes | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | n/a |
| Calculator | Yes | n/a | n/a | Yes | n/a |
| Calendar | Yes | n/a | n/a | Yes | n/a |
| To-Do List | - | n/a | n/a | Yes | n/a |
| Voice Memo | - | n/a | n/a | Yes | n/a |
| Software | |||||
| Games | - | n/a | n/a | Yes | n/a |
| Java (J2ME) | - | n/a | n/a | - | n/a |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | n/a | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung Knack U310 | Motorola Droid RAZR MAXX HD | LG eXpo GW820 | Samsung Memoir SGH-T929 | Motorola Backflip | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | Motorola Droid RAZR MAXX HD | LG eXpo GW820 | Samsung Memoir SGH-T929 | Motorola Backflip |
