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| Phone | Samsung SPH-i550 | ZTE Engage LT / Engage MT | BlackBerry 7750 | Samsung Droid Charge |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Not yet released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4" diag. 5 : 3 |
? |
4.3" diag. 5 : 3 |
| Display Resolution & Type |
320 x 320 pixels LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
480 x 800 pixels (~217 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | ? | 1,900 mAh | ? | 1,500 mAh |
| Processor | 200 MHz Motorola MX-1 | ? | ? | 1 GHz Samsung Hummingbird |
| RAM | ? | 1 GB | ? | ? |
| Storage | ? raw hardware | 4 GB | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 3 megapixel | - | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | WVGA / 480p | - | 720p HD |
| Front Camera | - | Yes | - | 1 megapixel |
| Weight | ? |
5.09 oz (144g) |
5.01 oz (142g) |
5.06 oz (144g) |
| Dimensions |
3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm) |
4.78" x 2.54" x 0.46" (121 x 64 x 11.7 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
5.1" x 2.68" x 0.46" (130 x 68 x 11.7 mm) |
| Platform / OS | Palm OS | Android | BlackBerry OS | Android |
| Network Bands |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1700, 1900 |
CDMA: 850, 1900 |
4G LTE: 13 CDMA: 850, 1900 |
| Data Technology | 1xRTT | EVDO rA | 1xRTT | LTE (Cat 3) |
| Features | ||||
| Accessibility | ||||
| Hearing Aid Compatible | - | - | - |
Yes M4, T4 (very tele-coil compatible) |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| Infrared (IR) | Yes | - | - | - |
| USB | - |
Yes Micro-USB |
Yes |
Yes Micro-USB |
| Wi-Fi | - | Yes | - |
Yes 4 (802.11 b,g,n) |
| Input | ||||
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen | Yes |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| TV Output | - | - | - | Yes |
| Voice | ||||
| Speaker Phone | - | Yes | - | Yes |
| Samsung SPH-i550 | ZTE Engage LT / Engage MT | BlackBerry 7750 | Samsung Droid Charge | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SPH-i550 | ZTE Engage LT / Engage MT | BlackBerry 7750 | Samsung Droid Charge |
