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Phone ZTE Engage LT / Engage MT Motorola V710 BlackBerry 7750 Ericsson T66 Motorola Rival A455
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
? ? ? 2.2" diag.
4 : 3
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
? 176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ? ?
Battery 1,900 mAh ? ? ? 940 mAh
Processor ? ? ? ? ?
RAM 1 GB ? ? ? ?
Storage 4 GB ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel 1 megapixel - - 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture WVGA / 480p ? - - QVGA (320 x 240)
Front Camera Yes - - - -
Weight 5.09 oz
(144g)
4.06 oz
(115g)
5.01 oz
(142g)
2.08 oz
(59g)
4.48 oz
(127g)
Dimensions 4.78" x 2.54" x 0.46"
(121 x 64 x 11.7 mm)
3.7" x 1.93" x 0.92"
(94 x 49 x 23.4 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
Form Factor Slab Clamshell Slab Slab Slide
Platform / OS Android (proprietary) BlackBerry OS (proprietary) (proprietary)
Network Bands

CDMA: 850, 1700, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

Data Technology EVDO rA 1xRTT 1xRTT - EVDO r0
Features 
GPS / Location n/a Yes n/a - Yes
Accessibility
Adjustable Text Size n/a - n/a - -
Hearing Aid Compatible - Yes - - Yes
Multiple Languages n/a Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display - Yes - - -
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth Yes Yes - - Yes
USB Yes
Micro-USB
Yes * Yes - Yes
Micro-USB
Wi-Fi Yes - - - -
Contacts
Picture ID n/a Yes n/a - Yes
Ringer ID n/a Yes n/a - Yes
Voice Dialing n/a Yes n/a - Yes
Customization
Custom Graphics n/a Yes n/a Yes Yes
Custom Ringtones n/a Yes n/a Yes Yes
Real-Music Ringers n/a Yes n/a - Yes
Data & Network
Data Tethering n/a Yes n/a - Yes
WAP / Web Browser n/a Yes n/a Yes Yes
Input
Predictive Text Entry n/a Yes n/a Yes -
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - Yes
Touch Screen Yes - - - Yes
Memory
Memory Card Slot Yes Yes - - Yes
Messaging
Email Client n/a Yes * n/a - Yes
EMS / Picture Messaging n/a Yes n/a Yes Yes
Instant Messaging n/a - n/a - Yes
MMS n/a Yes n/a - Yes
Text Messaging Templates n/a Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) Yes - - - Yes
Music Player n/a Yes n/a - Yes
Productivity
Alarm n/a Yes n/a Yes Yes
Calculator n/a Yes n/a Yes Yes
Calendar n/a Yes n/a Yes Yes
To-Do List n/a - n/a Yes -
Voice Memo n/a Yes n/a - Yes
Software
BREW n/a Yes n/a - Yes
Games n/a Yes n/a Yes Yes
Java (J2ME) n/a - n/a - -
Voice
Headset Jack (2.5 mm) n/a Yes n/a - -
Speaker Phone Yes Yes - - Yes
  * Some versions only
  ZTE Engage LT / Engage MT Motorola V710 BlackBerry 7750 Ericsson T66 Motorola Rival A455
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Phone ZTE Engage LT / Engage MT Motorola V710 BlackBerry 7750 Ericsson T66 Motorola Rival A455

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