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Phone Samsung Transform Ultra Nokia N900 HTC Droid Eris Motorola ROKR E2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
3.5" diag.
5 : 3
3.2" diag.
5 : 3
?
Display Resolution & Type 320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
800 x 480 pixels
(~267 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ?
Battery 1,500 mAh 1,320 mAh 1,300 mAh ?
Processor 1 GHz Qualcomm Snapdragon S2 MSM8655 600 MHz TI OMAP 3430 (ARM Cortex-A8) 528 MHz MSM7600 ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel 5 megapixel 5 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture VGA (640 x 480) ? CIF (352 x 288) ?
Front Camera Yes - - -
Weight 4.9 oz
(139g)
6.38 oz
(181g)
4.43 oz
(126g)
3.77 oz
(107g)
Dimensions 4.5" x 2.4" x 0.55"
(114 x 61 x 14 mm)
4.36" x 2.35" x 0.69"
(111 x 60 x 17.6 mm)
4.45" x 2.19" x 0.52"
(113 x 55 x 13.2 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
Form Factor Slide Slide Slab Slab
Platform / OS Android (proprietary) Android (proprietary)
Network Bands

CDMA: 800, 850, 1900

WCDMA: 1, 4, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

GSM: 900, 1800, 1900

Data Technology EVDO rA HSPA 10.1 EVDO rA EDGE
Features 
GPS / Location n/a Yes n/a -
Accessibility
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) Yes - Yes -
Alerts
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot n/a - n/a -
USB Yes Yes
Micro-USB
Yes
Mini-USB
Yes
Wi-Fi Yes
4 (802.11 a,b,g,n)
Yes
802.11 b,g
Yes
802.11 b,g
-
Contacts
Picture ID n/a Yes n/a Yes
Ringer ID n/a - n/a Yes
Voice Dialing n/a - n/a Yes
Customization
Custom Graphics n/a Yes n/a Yes
Custom Ringtones n/a Yes n/a Yes
Real-Music Ringers n/a Yes n/a -
Data & Network
Data Tethering n/a - n/a Yes
WAP / Web Browser n/a Yes n/a Yes
Input
Predictive Text Entry n/a - n/a Yes
Side Keys Yes Yes Yes Yes
Stylus - Yes - -
Text Keyboard, Hardware Yes Yes - -
Touch Screen Yes Yes Yes -
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client n/a Yes n/a Yes
Instant Messaging n/a Yes n/a -
MMS n/a - n/a Yes
Text Messaging Templates n/a - n/a Yes
Music
FM Radio - - - Yes
FM Transmitter n/a Yes n/a -
Headphone Jack (3.5mm) Yes Yes Yes Yes
Music Player n/a Yes n/a Yes
Stereo Speakers - Yes - -
Photo & Video
DLNA - Yes - -
TV Output - Yes - -
Video Calling n/a Yes * n/a -
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a Yes
To-Do List n/a - n/a Yes
Voice Memo n/a - n/a Yes
Software
Games n/a Yes n/a Yes
Java (J2ME) n/a - n/a Yes
Voice
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung Transform Ultra Nokia N900 HTC Droid Eris Motorola ROKR E2
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Phone Samsung Transform Ultra Nokia N900 HTC Droid Eris Motorola ROKR E2

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