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Phone ZTE Groove Samsung Transform Motorola Charm Ericsson T28 World
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 3.2" diag.
5 : 3
3.5" diag.
5 : 3
2.8" diag.
4 : 3
?
Display Resolution & Type 320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~143 ppi)
LCD (TFT/TFD)
?
Display Refresh 60 Hz 60 Hz 60 Hz ?
Battery 1,500 mAh 1,500 mAh 1,170 mAh 500 mAh
Processor 800 MHz Qualcomm MSM7627A 800 MHz Samsung S3C6410, Qualcomm QSC6085 720 MHz TI OMAP3410 ?
RAM 512 MB ? ? ?
Storage 1 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel 3 megapixel 3 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD QVGA (320 x 240) ? -
Front Camera Yes Yes - -
Weight 4.5 oz
(128g)
5.37 oz
(152g)
3.88 oz
(110g)
3.14 oz
(89g)
Dimensions 4.67" x 2.46" x 0.55"
(119 x 62 x 14 mm)
4.61" x 2.42" x 0.61"
(117 x 61 x 15.5 mm)
3.87" x 2.65" x 0.45"
(98 x 67 x 11.4 mm)
3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
Form Factor Slab Slide Slab Flip
Platform / OS Android Android Android (proprietary)
Network Bands

CDMA: 850, 1700, 1900

CDMA: 850, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1900

Data Technology EVDO rA EVDO rA HSDPA 3.6 -
Features 
GPS / Location n/a n/a n/a -
Accessibility
Hearing Aid Compatible - Yes - -
Multiple Languages n/a n/a n/a -
TTY/TDD (Digital) - Yes Yes -
Alerts
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Mobile Hotspot n/a n/a n/a -
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
-
Wi-Fi Yes Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID n/a n/a n/a -
Ringer ID n/a n/a n/a -
Voice Dialing n/a n/a n/a Yes
Customization
Custom Graphics n/a n/a n/a -
Custom Ringtones n/a n/a n/a Yes
Real-Music Ringers n/a n/a n/a -
Data & Network
Data Tethering n/a n/a n/a Yes
WAP / Web Browser n/a n/a n/a -
Input
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes Yes -
Touch Screen Yes Yes Yes -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client n/a n/a n/a -
Instant Messaging n/a n/a n/a -
MMS n/a n/a n/a -
Music
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player n/a n/a n/a -
Productivity
Alarm n/a n/a n/a Yes
Calculator n/a n/a n/a Yes
Calendar n/a n/a n/a -
Voice Memo n/a n/a n/a -
Software
Games n/a n/a n/a Yes
Voice
Speaker Phone Yes Yes Yes -
  ZTE Groove Samsung Transform Motorola Charm Ericsson T28 World
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Phone ZTE Groove Samsung Transform Motorola Charm Ericsson T28 World

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