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| Phone | Motorola A840 | LG Arena | Samsung Wafer R510 | Samsung Galaxy S II, Epic 4G Touch |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
3" diag. 5 : 3 |
1.9" diag. 4 : 3 |
4.5" diag. 5 : 3 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
480 x 800 pixels (~311 ppi) LCD (TFT/TFD) |
220 x 176 pixels (~148 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~206 ppi) AMOLED |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | ? | 1,000 mAh | 800 mAh | 1,800 mAh |
| Processor | ? | ? | ? | 1.2 GHz Samsung Exynos C210 dual-core |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | 1 megapixel | 5 megapixel | 1 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | VGA (640 x 480) | ? | 1080p HD |
| Front Camera | - | - | - | 2 megapixel |
| Weight |
4.06 oz (115g) |
3.7 oz (105g) |
2.47 oz (70g) |
4.55 oz (129g) |
| Dimensions |
3.7" x 1.93" x 0.92" (94 x 49 x 23.4 mm) |
4.24" x 2.18" x 0.48" (108 x 55 x 12.2 mm) |
4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm) |
5.1" x 2.7" x 0.38" (130 x 69 x 9.6 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 GSM: 900, 1800 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
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| Data Technology | 1xRTT | HSPA 7.2 | EVDO r0 | WiMAX |
| Features | ||||
| GPS / Location | Yes | Yes | Yes | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | - | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Mobile Hotspot | - | - | - | n/a |
| USB | Yes | Yes | - |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | n/a |
| Ringer ID | Yes | - | - | n/a |
| Voice Dialing | Yes | Yes | Yes | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | Yes | Yes | - | n/a |
| Data & Network | ||||
| Data Tethering | Yes | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | - | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | Yes | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | Yes | - | n/a |
| EMS / Picture Messaging | Yes | - | - | n/a |
| Instant Messaging | - | Yes | - | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | - | - | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | Yes | Yes | Yes | n/a |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| TV Output | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | - | Yes | - | n/a |
| Voice Memo | - | Yes | Yes | n/a |
| Software | ||||
| BREW | Yes | - | Yes | n/a |
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | - | Yes | - | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | - | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Motorola A840 | LG Arena | Samsung Wafer R510 | Samsung Galaxy S II, Epic 4G Touch | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola A840 | LG Arena | Samsung Wafer R510 | Samsung Galaxy S II, Epic 4G Touch |
