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Phone Samsung Transform ZTE Groove Motorola Charm Ericsson T28 World Ericsson T66
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
3.2" diag.
5 : 3
2.8" diag.
4 : 3
? ?
Display Resolution & Type 320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 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 Samsung S3C6410, Qualcomm QSC6085 800 MHz Qualcomm MSM7627A 720 MHz TI OMAP3410 ? ?
RAM ? 512 MB ? ? ?
Storage ? raw hardware 1 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel 3 megapixel 3 megapixel - -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) 720p HD ? - -
Front Camera Yes Yes - - -
Weight 5.37 oz
(152g)
4.5 oz
(128g)
3.88 oz
(110g)
3.14 oz
(89g)
2.08 oz
(59g)
Dimensions 4.61" x 2.42" x 0.61"
(117 x 61 x 15.5 mm)
4.67" x 2.46" x 0.55"
(119 x 62 x 14 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)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
Form Factor Slide Slab Slab Flip Slab
Platform / OS Android Android Android (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1700, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1900

GSM: 900, 1800, 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 - Yes
TTY/TDD (Digital) Yes - Yes - -
Alerts
Ringer Profiles - - - Yes 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
4 (802.11 b,g,n)
Yes 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 - Yes
Custom Ringtones n/a n/a n/a Yes 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 - Yes
Input
Predictive Text Entry n/a n/a n/a - Yes
Side Keys Yes 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 - -
EMS / Picture Messaging n/a n/a n/a - Yes
Instant Messaging n/a n/a n/a - -
MMS n/a n/a n/a - -
Text Messaging Templates n/a n/a n/a - Yes
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 Yes
Calculator n/a n/a n/a Yes Yes
Calendar n/a n/a n/a - Yes
To-Do List n/a n/a n/a - Yes
Voice Memo n/a n/a n/a - -
Software
Games n/a n/a n/a Yes Yes
Voice
Speaker Phone Yes Yes Yes - -
  Samsung Transform ZTE Groove Motorola Charm Ericsson T28 World Ericsson T66
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Phone Samsung Transform ZTE Groove Motorola Charm Ericsson T28 World Ericsson T66

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