Compare Phones
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| Phone | Siemens CT56 | BlackBerry 7750 | Nokia Lumia 635 (CDMA) | HTC Droid Eris |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
4.5" diag. 16 : 9 |
3.2" diag. 5 : 3 |
| Display Resolution & Type | 101 x 64 pixels |
240 x 240 pixels LCD (Color) |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | 700 mAh | ? | 1,830 mAh | 1,300 mAh |
| Processor | ? | ? | 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) | 528 MHz MSM7600 |
| RAM | ? | ? | 512 MB | ? |
| Storage | ? raw hardware | ? raw hardware | 8 GB | ? raw hardware |
| Main Camera | - | - | 5 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | 720p HD | CIF (352 x 288) |
| Front Camera | - | - | - | - |
| Weight |
2.96 oz (84g) |
5.01 oz (142g) |
4.73 oz (134g) |
4.43 oz (126g) |
| Dimensions |
3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
5.1" x 2.63" x 0.36" (130 x 67 x 9.1 mm) |
4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | BlackBerry OS | Windows | Android |
| Network Bands |
GSM: 850, 1900 |
CDMA: 850, 1900 |
4G LTE: 25, 26, 41 WCDMA: 1, 2, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | 1xRTT | LTE (Cat 3) | EVDO rA |
| Features | ||||
| GPS / Location | Yes | n/a | n/a | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | - | - | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a |
| USB | Yes | Yes |
Yes Micro-USB |
Yes Mini-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 802.11 b,g |
| Contacts | ||||
| Picture ID | - | n/a | n/a | n/a |
| Ringer ID | - | n/a | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a | n/a |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | - | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | - | n/a | n/a | n/a |
| Text Messaging Templates | - | n/a | n/a | n/a |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | - | n/a | n/a | n/a |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Productivity | ||||
| Alarm | - | n/a | n/a | n/a |
| Calculator | - | n/a | n/a | n/a |
| Calendar | - | n/a | n/a | n/a |
| To-Do List | - | n/a | n/a | n/a |
| Voice Memo | - | n/a | n/a | n/a |
| Software | ||||
| Games | - | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | - | n/a | n/a | n/a |
| Speaker Phone | Yes | - | Yes | Yes |
| * Some versions only | ||||
| Siemens CT56 | BlackBerry 7750 | Nokia Lumia 635 (CDMA) | HTC Droid Eris | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens CT56 | BlackBerry 7750 | Nokia Lumia 635 (CDMA) | HTC Droid Eris |
