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| Phone | ZTE C88 | Samsung SGH-X820 | Apple iPhone 4S | Sharp Sidekick LX 2009 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
? |
3.5" diag. 5 : 3 |
3.2" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~141 ppi) LCD (TFT/TFD) |
220 x 176 pixels LCD (TFT/TFD) |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 800 mAh | 650 mAh | ? | 1,250 mAh |
| Processor | ? | ? | Apple A5 | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 64 GB * | ? raw hardware |
| Main Camera | Yes | 2 megapixel | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | 1080p HD | QVGA (320 x 240) |
| Front Camera | - | - | Yes | - |
| Weight |
3.46 oz (98g) |
2.33 oz (66g) |
4.9 oz (139g) |
5.78 oz (164g) |
| Dimensions |
3.85" x 1.92" x 0.7" (98 x 49 x 17.8 mm) |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
| Form Factor | Clamshell | Slab | Slab | Swivel |
| Platform / OS | (proprietary) | (proprietary) | iOS | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
| Data Technology | 1xRTT | EDGE | HSPA 14.4 | HSPA 7.2 |
| Features | ||||
| GPS / Location | Yes | - | n/a | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | Yes |
| Hearing Aid Compatible | - | - | Yes |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | - |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | - |
| USB |
Yes Micro-USB |
Yes | Yes | Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | - | Yes | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | Yes |
| Voice Dialing | Yes | - | n/a | - |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | Yes | Yes | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | - | n/a | - |
| External Antenna Jack | - | Yes | n/a | - |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | - |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | Yes | Yes | n/a | Yes |
| EMS / Picture Messaging | - | Yes | n/a | - |
| Instant Messaging | Yes | - | n/a | Yes |
| MMS | Yes | Yes | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | - | - | n/a | Yes |
| Photo & Video | ||||
| TV Output | - | Yes | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | - |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | - | Yes | n/a | Yes |
| Voice Memo | Yes | Yes | n/a | - |
| Software | ||||
| BREW | Yes | - | n/a | - |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | - | Yes | n/a | Yes |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| ZTE C88 | Samsung SGH-X820 | Apple iPhone 4S | Sharp Sidekick LX 2009 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE C88 | Samsung SGH-X820 | Apple iPhone 4S | Sharp Sidekick LX 2009 |
