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| Phone | Ericsson R278d | Ericsson T66 | HTC Dash / S620 / S621 (Excalibur) | Huawei M835 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? |
2.8" diag. 4 : 3 |
| Display Resolution & Type | 101 x 40 pixels | ? |
320 x 240 pixels LCD (TFT/TFD) |
240 x 320 pixels (~143 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | ? | ? | 960 mAh | 1,200 mAh |
| Processor | ? | ? | 200 MHz OMAP 850 | 528 MHz Qualcomm MSM7625 |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 1 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | ? | ? |
| Front Camera | - | - | - | - |
| Weight |
9.28 oz (263g) |
2.08 oz (59g) |
4.23 oz (120g) |
3.88 oz (110g) |
| Dimensions |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
4.39" x 2.46" x 0.51" (112 x 62 x 13 mm) |
4.09" x 2.15" x 0.53" (104 x 55 x 13.5 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Windows Mobile Standard | Android |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
GSM: 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | - | - | EDGE | EVDO rA |
| Features | ||||
| GPS / Location | - | - | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | n/a |
| Hearing Aid Compatible | - | - | - |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | - | - | Yes | Yes |
| USB | - | - | Yes | Yes |
| Wi-Fi | - | - |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | - | - | n/a | n/a |
| Ringer ID | - | - | n/a | n/a |
| Voice Dialing | - | - | n/a | n/a |
| Customization | ||||
| Custom Graphics | - | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Real-Music Ringers | - | - | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | - | n/a | n/a |
| External Antenna Jack | - | - | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen | - | - | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | - | - | n/a | n/a |
| EMS / Picture Messaging | - | Yes | n/a | n/a |
| Instant Messaging | - | - | n/a | n/a |
| MMS | - | - | n/a | n/a |
| Text Messaging Templates | - | Yes | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | - | n/a | n/a |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | - | Yes | n/a | n/a |
| Calendar | - | Yes | n/a | n/a |
| To-Do List | - | Yes | n/a | n/a |
| Voice Memo | - | - | n/a | n/a |
| Software | ||||
| Games | - | Yes | n/a | n/a |
| Java (J2ME) | - | - | n/a | n/a |
| Voice | ||||
| Speaker Phone | - | - | Yes | Yes |
| * Some versions only | ||||
| Ericsson R278d | Ericsson T66 | HTC Dash / S620 / S621 (Excalibur) | Huawei M835 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R278d | Ericsson T66 | HTC Dash / S620 / S621 (Excalibur) | Huawei M835 |
