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Phone Samsung SGH-E635 / SGH-E630 Samsung M520 Samsung Transform Ultra Huawei W1
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2.1" diag.
4 : 3
3.5" diag.
5 : 3
4" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ?
Battery 800 mAh ? 1,500 mAh 1,950 mAh
Processor ? ? 1 GHz Qualcomm Snapdragon S2 MSM8655 1.2 GHz Qualcomm Snapdragon 400 MSM8230
RAM ? ? ? 512 MB
Storage ? raw hardware ? raw hardware ? raw hardware 4 GB
Main Camera Yes 1 megapixel 3 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - ? VGA (640 x 480) 720p HD
Front Camera - - Yes Yes
Weight 2.78 oz
(79g)
2.75 oz
(78g)
4.9 oz
(139g)
4.41 oz
(125g)
Dimensions 3.34" x 1.69" x 0.85"
(85 x 43 x 21.6 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
4.5" x 2.4" x 0.55"
(114 x 61 x 14 mm)
4.84" x 2.5" x 0.41"
(123 x 64 x 10.4 mm)
Form Factor Slide Slide Slide Slab
Platform / OS (proprietary) (proprietary) Android Windows
Network Bands

GSM: 850, 1800, 1900

*

CDMA: 850, 1900

CDMA: 800, 850, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS EVDO r0 EVDO rA HSPA+ 21
Features 
GPS / Location - Yes n/a n/a
Accessibility
Adjustable Text Size - - n/a n/a
Hearing Aid Compatible - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) - Yes Yes -
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes - - -
Mobile Hotspot - - n/a n/a
USB - Yes Yes Yes
Micro-USB
Wi-Fi - - Yes
4 (802.11 a,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes Yes n/a n/a
Ringer ID Yes Yes n/a n/a
Voice Dialing - Yes n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers - - n/a n/a
Data & Network
Data Tethering Yes Yes n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Touch Screen - - Yes Yes
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - - n/a n/a
EMS / Picture Messaging Yes - n/a n/a
Instant Messaging - - n/a n/a
MMS Yes - n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes
Music Player - Yes n/a n/a
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes Yes n/a n/a
To-Do List Yes Yes n/a n/a
Voice Memo Yes Yes n/a n/a
Software
Games Yes Yes n/a n/a
Java (J2ME) Yes Yes n/a n/a
Voice
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-E635 / SGH-E630 Samsung M520 Samsung Transform Ultra Huawei W1
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-E635 / SGH-E630 Samsung M520 Samsung Transform Ultra Huawei W1

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