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Phone Sony Ericsson T237 / T290a ZTE Grand X Samsung SGH-E640
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
?
Display Resolution & Type 101 x 80 pixels
LCD (STN)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ?
Battery ? 2,300 mAh 800 mAh
Processor ? 1.2 GHz Qualcomm Snapdragon 200 MSM8210 ?
RAM ? 1 GB ?
Storage ? raw hardware 4 GB ? raw hardware
Main Camera - 5 megapixel 1 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture - 720p HD QCIF (176 x 144)
Front Camera - 1 megapixel -
Weight 2.79 oz
(79g)
6.06 oz
(172g)
3.17 oz
(90g)
Dimensions 4" x 1.71" x 0.71"
(102 x 43 x 18 mm)
5.7" x 2.87" x 0.37"
(145 x 73 x 9.4 mm)
3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
Form Factor Slab Slab Clamshell
Platform / OS (proprietary) Android (proprietary)
Network Bands

GSM: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology GPRS HSPA+ 21 GPRS
Features 
GPS / Location - n/a -
Accessibility
Adjustable Text Size - n/a -
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes n/a Yes
TTY/TDD (Digital) Yes Yes -
Alerts
Extra Display - - Yes
Connectivity
Bluetooth - Yes Yes
USB Yes Yes
Micro-USB
Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a Yes
Ringer ID Yes n/a Yes
Voice Dialing Yes n/a -
Customization
Custom Graphics Yes n/a Yes
Custom Ringtones Yes n/a Yes
Real-Music Ringers - n/a Yes
Data & Network
WAP / Web Browser Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes
Side Keys Yes Yes Yes
Touch Screen - Yes
Capacitive
-
Memory
Memory Card Slot - Yes -
Messaging
Email Client Yes n/a Yes
EMS / Picture Messaging Yes n/a Yes
Instant Messaging - n/a -
MMS Yes n/a Yes
Text Messaging Templates Yes n/a Yes
Music
Headphone Jack (3.5mm) - Yes -
Music Player - n/a Yes
Productivity
Alarm Yes n/a Yes
Calculator Yes n/a Yes
Calendar Yes n/a Yes
To-Do List - n/a Yes
Voice Memo Yes n/a Yes
Software
Games Yes n/a Yes
Java (J2ME) - n/a Yes
Voice
HD Voice - Yes -
Speaker Phone Yes Yes Yes
  Sony Ericsson T237 / T290a ZTE Grand X Samsung SGH-E640
  X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Ericsson T237 / T290a ZTE Grand X Samsung SGH-E640

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