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| Phone | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Sidekick 4G | ZTE Max | Sony Ericsson K850 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
3.5" diag. 5 : 3 |
5.7" diag. 16 : 9 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
130 x 130 pixels LCD (Color) |
480 x 800 pixels (~267 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~258 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? |
| Battery | 600 mAh | ? | 3,200 mAh | ? |
| Processor | ? | 1 GHz Samsung Hummingbird Cortex A8 | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | ? |
| RAM | ? | ? | 1 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 8 GB | ? raw hardware |
| Main Camera | Yes | 3 megapixel | 8 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | WVGA / 480p | 1080p HD | ? |
| Front Camera | - | Yes | 1 megapixel | - |
| Weight |
3 oz (85g) |
5.7 oz (162g) |
6.87 oz (195g) |
4.2 oz (119g) |
| Dimensions |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
5" x 2.42" x 0.6" (127 x 61 x 15.2 mm) |
6.45" x 3.24" x 0.35" (164 x 82 x 9 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
| Form Factor | Slab | Slide | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
GSM: 850, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
4G LTE: 25 CDMA: 800, 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | HSPA+ 21 | LTE (Cat 3) | HSDPA 3.6 |
| 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 M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | - | - | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - | - |
| Mobile Hotspot | - | n/a | n/a | - |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | Yes |
| Ringer ID | Yes | n/a | n/a | Yes |
| Voice Dialing | - | n/a | n/a | Yes |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes |
| Real-Music Ringers | - | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | n/a | n/a | Yes |
| WAP / Web Browser | Yes | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | Yes |
| Side Keys | - | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | Yes |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | Yes |
| EMS / Picture Messaging | Yes | n/a | n/a | - |
| Instant Messaging | - | n/a | n/a | - |
| MMS | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes |
| Music | ||||
| FM Radio | - | - | Yes | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | - |
| Music Player | - | n/a | n/a | Yes |
| Photo & Video | ||||
| DLNA | - | Yes | Yes | - |
| Video Calling | - | n/a | n/a | Yes * |
| Power | ||||
| Wireless Charging | - | - | Yes * | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | Yes |
| To-Do List | Yes | n/a | n/a | Yes |
| Voice Memo | Yes | n/a | n/a | Yes |
| Software | ||||
| Games | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | n/a | n/a | Yes |
| Voice | ||||
| Call Screening | Yes | - | - | - |
| HD Voice | - | - | Yes | - |
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Sidekick 4G | ZTE Max | Sony Ericsson K850 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Sidekick 4G | ZTE Max | Sony Ericsson K850 |
