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Phone Samsung SGH-D520 Samsung SGH-X640 Alcatel 665 ZTE Blade Vantage Samsung SCH-A990
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 1.8" diag.
4 : 3
5" diag.
16 : 9
?
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 800 mAh 800 mAh 650 mAh 2,500 mAh 1,000 mAh
Processor ? ? ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ?
RAM ? ? 16 MB 2 GB ?
Storage ? raw hardware ? raw hardware 32 MB 16 GB ? raw hardware
Main Camera 1 megapixel Yes 2 megapixel 8 megapixel 3 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture CIF (352 x 288) - QCIF (176 x 144) 720p HD ?
Front Camera - - - 2 megapixel -
Weight 3.32 oz
(94g)
3 oz
(85g)
2.72 oz
(77g)
5.29 oz
(150g)
4.4 oz
(125g)
Dimensions 3.98" x 1.81" x 0.63"
(101 x 46 x 16 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.78" x 1.89" x 0.66"
(96 x 48 x 16.8 mm)
5.73" x 2.85" x 0.36"
(146 x 72 x 9.2 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Slide Clamshell Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 850, 1900

4G LTE: 2, 4, 5, 13

CDMA: 850, 1900

Data Technology GPRS GPRS - LTE (Cat 4) EVDO r0
Features 
Flashlight - - - Yes Yes
GPS / Location - - - n/a Yes
Accessibility
Hearing Aid Compatible - - Yes
M4 (very compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes Yes Yes n/a Yes
TTY/TDD (Digital) - - - Yes Yes
Alerts
Extra Display - - Yes - Yes
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes - Yes Yes Yes
USB - - Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi - - - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes Yes Yes n/a Yes
Ringer ID Yes Yes Yes n/a Yes
Voice Dialing - - - n/a Yes
Customization
Custom Graphics Yes Yes Yes n/a Yes
Custom Ringtones Yes Yes Yes n/a Yes
Real-Music Ringers - - Yes n/a Yes
Data & Network
Data Tethering Yes - - n/a Yes
External Antenna Jack Yes - - n/a -
WAP / Web Browser Yes Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - - Yes
Capacitive
-
Memory
Memory Card Slot - - Yes Yes Yes
Messaging
Email Client Yes - - n/a -
EMS / Picture Messaging - Yes - n/a Yes
Instant Messaging - - Yes n/a -
MMS Yes Yes Yes n/a Yes
Text Messaging Templates Yes Yes Yes n/a Yes
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) - - Yes Yes -
Music Player - - Yes n/a Yes
Stereo Speakers - - - - Yes
Photo & Video
TV Output - - - - Yes
Productivity
Alarm Yes Yes Yes n/a Yes
Calculator Yes Yes Yes n/a Yes
Calendar Yes Yes Yes n/a Yes
To-Do List Yes Yes - n/a -
Voice Memo Yes Yes Yes n/a Yes
Software
BREW - - - n/a Yes
Games Yes Yes Yes n/a Yes
Java (J2ME) Yes Yes Yes n/a -
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) - Yes - n/a -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-D520 Samsung SGH-X640 Alcatel 665 ZTE Blade Vantage Samsung SCH-A990
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-D520 Samsung SGH-X640 Alcatel 665 ZTE Blade Vantage Samsung SCH-A990

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