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| Phone | Ericsson R278d | HTC Touch Pro2 (CDMA) | Motorola RAZR V3i / V3t / V3e / V3r | Samsung Knack U310 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
3.6" diag. 5 : 3 |
? |
2.2" diag. 4 : 3 |
| Display Resolution & Type | 101 x 40 pixels |
480 x 800 pixels (~259 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | ? | 1,500 mAh | 710 mAh | 1,000 mAh |
| Processor | ? | 528 MHz MSM7600 | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 3 megapixel | 1 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | ? | - |
| Front Camera | - | - | - | - |
| Weight |
9.28 oz (263g) |
6.35 oz (180g) |
3.53 oz (100g) |
3.63 oz (103g) |
| Dimensions |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm) |
3.86" x 2.09" x 0.55" (98 x 53 x 14 mm) |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
| Form Factor | Slab | Slab | Clamshell | Clamshell |
| Platform / OS | (proprietary) | Windows Mobile Professional | (proprietary) | (proprietary) |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | - | EVDO rA | GPRS | - |
| Features | ||||
| GPS / Location | - | n/a | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | Yes |
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | Yes |
| Ringer Profiles | Yes | - | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | - |
| USB | - | Yes |
Yes Mini-USB |
- |
| Wi-Fi | - | Yes | - | - |
| Contacts | ||||
| Picture ID | - | n/a | Yes | - |
| Ringer ID | - | n/a | Yes | - |
| Voice Dialing | - | n/a | Yes | Yes |
| Customization | ||||
| Custom Graphics | - | n/a | Yes | - |
| Custom Ringtones | Yes | n/a | Yes | - |
| Real-Music Ringers | - | n/a | Yes | - |
| Data & Network | ||||
| Data Tethering | Yes | n/a | - | - |
| WAP / Web Browser | Yes | n/a | Yes | - |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Stylus | - | Yes | - | - |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - |
Yes Resistive |
- | - |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | - |
| Messaging | ||||
| Email Client | - | n/a | Yes | - |
| EMS / Picture Messaging | - | n/a | Yes | Yes |
| Instant Messaging | - | n/a | - | - |
| MMS | - | n/a | Yes | - |
| Text Messaging Templates | - | n/a | Yes * | - |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | - |
| Music Player | - | n/a | Yes | - |
| Photo & Video | ||||
| TV Output | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | - | n/a | Yes | Yes |
| Calendar | - | n/a | Yes | Yes |
| To-Do List | - | n/a | - | - |
| Voice Memo | - | n/a | Yes | - |
| Software | ||||
| Games | - | n/a | Yes | - |
| Java (J2ME) | - | n/a | Yes | - |
| Voice | ||||
| Headset Jack (2.5 mm) | - | n/a | - | Yes |
| Speaker Phone | - | Yes | Yes | Yes |
| * Some versions only | ||||
| Ericsson R278d | HTC Touch Pro2 (CDMA) | Motorola RAZR V3i / V3t / V3e / V3r | Samsung Knack U310 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R278d | HTC Touch Pro2 (CDMA) | Motorola RAZR V3i / V3t / V3e / V3r | Samsung Knack U310 |
