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| Phone | Apple iPhone 4 (GSM) | Sony Ericsson K850 | Samsung Sidekick 4G |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
2.2" diag. 4 : 3 |
3.5" diag. 5 : 3 |
| Display Resolution & Type |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~267 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz |
| Battery | ? | ? | ? |
| Processor | Apple A4 | ? | 1 GHz Samsung Hummingbird Cortex A8 |
| RAM | ? | ? | ? |
| Storage | 32 GB * | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 5 megapixel | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | ? | WVGA / 480p |
| Front Camera | Yes | - | Yes |
| Weight |
4.8 oz (136g) |
4.2 oz (119g) |
5.7 oz (162g) |
| Dimensions |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
5" x 2.42" x 0.6" (127 x 61 x 15.2 mm) |
| Form Factor | Slab | Slab | Slide |
| Platform / OS | iOS | (proprietary) | Android |
| Network Bands |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSPA 7.2 | HSDPA 3.6 | HSPA+ 21 |
| 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) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Ringer Profiles | - | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | n/a | - | n/a |
| USB | Yes | Yes |
Yes Micro-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | n/a | Yes | n/a |
| Ringer ID | n/a | Yes | n/a |
| Voice Dialing | n/a | Yes | n/a |
| Customization | |||
| Custom Graphics | n/a | Yes | n/a |
| Custom Ringtones | n/a | Yes | n/a |
| Real-Music Ringers | n/a | Yes | n/a |
| Data & Network | |||
| Data Tethering | n/a | Yes | n/a |
| WAP / Web Browser | n/a | Yes | n/a |
| Input | |||
| Predictive Text Entry | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen |
Yes Capacitive |
- | Yes |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | n/a | Yes | n/a |
| Instant Messaging | n/a | - | n/a |
| MMS | n/a | Yes | n/a |
| Text Messaging Templates | n/a | Yes | n/a |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | Yes |
| Music Player | n/a | Yes | n/a |
| Photo & Video | |||
| DLNA | - | - | Yes |
| TV Output | Yes | - | - |
| Video Calling | n/a | Yes * | n/a |
| Productivity | |||
| Alarm | n/a | Yes | n/a |
| Calculator | n/a | Yes | n/a |
| Calendar | n/a | Yes | n/a |
| To-Do List | n/a | Yes | n/a |
| Voice Memo | n/a | Yes | n/a |
| Software | |||
| Games | n/a | Yes | n/a |
| Java (J2ME) | n/a | Yes | n/a |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Apple iPhone 4 (GSM) | Sony Ericsson K850 | Samsung Sidekick 4G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Apple iPhone 4 (GSM) | Sony Ericsson K850 | Samsung Sidekick 4G |
