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| Phone | Apple iPhone 4 (GSM) | Ericsson T66 | Pantech Duo C810 | Ericsson R278d |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
? |
2.2" diag. 4 : 3 |
? |
| Display Resolution & Type |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
? |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
101 x 40 pixels |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | ? | ? | 1,320 mAh | ? |
| Processor | Apple A4 | ? | ARM 920t PXA27x | ? |
| RAM | ? | ? | ? | ? |
| Storage | 32 GB * | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | - | 1 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | - | QVGA (320 x 240) | - |
| Front Camera | Yes | - | - | - |
| Weight |
4.8 oz (136g) |
2.08 oz (59g) |
3.88 oz (110g) |
9.28 oz (263g) |
| Dimensions |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
| Form Factor | Slab | Slab | Slide | Slab |
| Platform / OS | iOS | (proprietary) | Windows Mobile Standard | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
TDMA: 850, 1900 AMPS: 850 |
| Data Technology | HSPA 7.2 | - | HSDPA 1.8 | - |
| Features | ||||
| GPS / Location | n/a | - | n/a | - |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | n/a | - |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
- | - | - |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | - | - |
| Alerts | ||||
| Ringer Profiles | - | Yes | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | - |
| Mobile Hotspot | n/a | - | n/a | - |
| USB | Yes | - | Yes | - |
| Wi-Fi |
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 | n/a | Yes | n/a | - |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | - | n/a | Yes |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen |
Yes Capacitive |
- | - | - |
| Memory | ||||
| Memory Card Slot | - | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | - |
| EMS / Picture Messaging | n/a | Yes | n/a | - |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | - | n/a | - |
| Text Messaging Templates | n/a | Yes | n/a | - |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | n/a | - | n/a | - |
| Photo & Video | ||||
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | - |
| Calendar | n/a | Yes | n/a | - |
| To-Do List | n/a | Yes | n/a | - |
| Voice Memo | n/a | - | n/a | - |
| Software | ||||
| Games | n/a | Yes | n/a | - |
| Voice | ||||
| Speaker Phone | Yes | - | Yes | - |
| * Some versions only | ||||
| Apple iPhone 4 (GSM) | Ericsson T66 | Pantech Duo C810 | Ericsson R278d | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Apple iPhone 4 (GSM) | Ericsson T66 | Pantech Duo C810 | Ericsson R278d |
