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| Phone | Cal-Comp EZ | BlackBerry 7750 | Samsung SGH-A157 | Nokia E65 | Coolpad Quattro 4G |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
1.8" diag. 4 : 3 |
? |
4" diag. 5 : 3 |
| Display Resolution & Type |
128 x 128 pixels LCD (STN) |
240 x 240 pixels LCD (Color) |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | 60 Hz |
| Battery | 800 mAh | ? | 800 mAh | 950 mAh | 1,600 mAh |
| Processor | ? | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 256 MB | ? raw hardware | 512 MB |
| Main Camera | - | - | - | 2 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | - | CIF (352 x 288) | VGA (640 x 480) |
| Front Camera | - | - | - | - | Yes |
| Weight |
2.47 oz (70g) |
5.01 oz (142g) |
2.99 oz (85g) |
4.06 oz (115g) |
3.31 oz (94g) |
| Dimensions |
4.04" x 1.71" x 0.63" (103 x 43 x 16 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm) |
4.13" x 1.93" x 0.61" (105 x 49 x 15.5 mm) |
4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) |
| Form Factor | Slab | Slab | Clamshell | Slide | Slab |
| Platform / OS | (proprietary) | BlackBerry OS | (proprietary) | S60 (Symbian) | Android |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
| Data Technology | 1xRTT | 1xRTT | ? | EDGE | LTE (Cat 3) |
| Features | |||||
| GPS / Location | Yes | n/a | Yes | n/a | n/a |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | Yes | n/a | n/a |
| Hearing Aid Compatible | - | - |
Yes M4 (very compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | Yes | Yes | Yes | - |
| Connectivity | |||||
| Bluetooth | - | - | - | Yes | Yes |
| Infrared (IR) | - | - | - | Yes | - |
| Mobile Hotspot | - | n/a | - | n/a | n/a |
| USB |
Yes Mini-USB |
Yes |
Yes Micro-USB |
Yes | Yes |
| Wi-Fi | - | - | - |
Yes 802.11 b,g |
Yes |
| Contacts | |||||
| Picture ID | - | n/a | Yes | n/a | n/a |
| Ringer ID | - | n/a | Yes | n/a | n/a |
| Voice Dialing | - | n/a | - | n/a | n/a |
| Customization | |||||
| Custom Graphics | - | n/a | Yes | n/a | n/a |
| Custom Ringtones | - | n/a | Yes | n/a | n/a |
| Real-Music Ringers | - | n/a | Yes | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | - | n/a | n/a |
| WAP / Web Browser | - | n/a | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | - | n/a | Yes | n/a | n/a |
| Side Keys | - | Yes | - | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen | - | - | - | - |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | - | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | - | n/a | n/a |
| Instant Messaging | - | n/a | - | n/a | n/a |
| MMS | - | n/a | Yes | n/a | n/a |
| Text Messaging Templates | Yes | n/a | Yes | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | - | - | Yes |
| Music Player | - | n/a | - | n/a | n/a |
| Photo & Video | |||||
| Video Calling | - | n/a | - | n/a | n/a |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | n/a | n/a |
| Calculator | Yes | n/a | Yes | n/a | n/a |
| Calendar | Yes | n/a | Yes | n/a | n/a |
| To-Do List | Yes | n/a | Yes | n/a | n/a |
| Voice Memo | Yes * | n/a | Yes | n/a | n/a |
| Software | |||||
| Games | - | n/a | - | n/a | n/a |
| Java (J2ME) | - | n/a | - | n/a | n/a |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | - | n/a | n/a |
| Push-To-Talk | - | - | - | Yes * | - |
| Speaker Phone | - | - | Yes | Yes | Yes |
| * Some versions only | |||||
| Cal-Comp EZ | BlackBerry 7750 | Samsung SGH-A157 | Nokia E65 | Coolpad Quattro 4G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Cal-Comp EZ | BlackBerry 7750 | Samsung SGH-A157 | Nokia E65 | Coolpad Quattro 4G |
