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Phone Samsung SGH-X640 ZTE Blade Vantage Motorola V551 / V330 / V547 / V555 / V557 Samsung Wafer R510
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
? 1.9" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 800 mAh 2,500 mAh 820 mAh 800 mAh
Processor ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ? ?
RAM ? 2 GB ? ?
Storage ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera Yes 8 megapixel Yes 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 720p HD ? ?
Front Camera - 2 megapixel - -
Weight 3 oz
(85g)
5.29 oz
(150g)
4.23 oz
(120g)
2.47 oz
(70g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.73" x 2.85" x 0.36"
(146 x 72 x 9.2 mm)
3.5" x 1.93" x 0.97"
(89 x 49 x 24.6 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
Form Factor Clamshell Slab Clamshell Slab
Platform / OS (proprietary) Android (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 13

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

Data Technology GPRS LTE (Cat 4) EDGE EVDO r0
Features 
Flashlight - Yes - -
GPS / Location - n/a - Yes
Accessibility
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
- Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Extra Display - - Yes -
Ringer Profiles - - Yes -
Connectivity
Bluetooth - Yes Yes Yes
USB - Yes
Micro-USB
Yes -
Wi-Fi - Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID Yes n/a Yes Yes
Ringer ID Yes n/a Yes -
Voice Dialing - n/a Yes Yes
Customization
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers - n/a Yes -
Data & Network
Data Tethering - n/a Yes -
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
- -
Memory
Memory Card Slot - Yes - Yes
Messaging
Email Client - n/a Yes -
EMS / Picture Messaging Yes n/a Yes -
Instant Messaging - n/a Yes -
MMS Yes n/a Yes Yes
Text Messaging Templates Yes n/a Yes -
Music
Headphone Jack (3.5mm) - Yes - -
Music Player - n/a - Yes
Stereo Speakers - - - Yes
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes Yes
Calendar Yes n/a Yes Yes
To-Do List Yes n/a - -
Voice Memo Yes n/a Yes Yes
Software
BREW - n/a - Yes
Games Yes n/a Yes Yes
Java (J2ME) Yes n/a Yes -
Voice
HD Voice - Yes - -
Headset Jack (2.5 mm) Yes n/a Yes -
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-X640 ZTE Blade Vantage Motorola V551 / V330 / V547 / V555 / V557 Samsung Wafer R510
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 ZTE Blade Vantage Motorola V551 / V330 / V547 / V555 / V557 Samsung Wafer R510

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