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Phone Samsung SGH-X640 Samsung Galaxy S6 (GSM) Casio G'zOne Rock BlackBerry Storm2 9550 Motorola v66i
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.1" diag.
16 : 9
2.1" diag.
4 : 3
3.3" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
360 x 480 pixels
(~185 ppi)
LCD (TFT/TFD)
?
Display Refresh ? 60 Hz ? ? ?
Battery 800 mAh 2,550 mAh 1,150 mAh 1,400 mAh ?
Processor ? 2.1 GHz Samsung Exynos 7420 ? ? ?
RAM ? 3 GB ? ? ?
Storage ? raw hardware 32 GB * ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes 16 megapixel 2 megapixel 3 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 4K UHD ? ? -
Front Camera - 5 megapixel - - -
Weight 3 oz
(85g)
4.87 oz
(138g)
4.4 oz
(125g)
5.64 oz
(160g)
2.79 oz
(79g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
4.43" x 2.45" x 0.55"
(113 x 62 x 14 mm)
3.3" x 1.7" x 0.83"
(84 x 43 x 21.1 mm)
Form Factor Clamshell Slab Clamshell Slab Clamshell
Platform / OS (proprietary) Android (proprietary) BlackBerry OS (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

WCDMA: 1

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology GPRS LTE (Cat 6) EVDO rA EVDO rA GPRS
Features 
Fingerprint Reader - Yes - - -
Flashlight - Yes Yes - -
GPS / Location - n/a Yes n/a -
Ruggedized - - Yes - -
VR-ready - Yes - - -
Water-Resistant - - Yes - -
Accessibility
Adjustable Text Size - n/a - n/a -
Hearing Aid Compatible - Yes Yes Yes -
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Extra Display - - Yes - -
Ringer Profiles - - - Yes -
Connectivity
Bluetooth - Yes Yes Yes -
Infrared (IR) - Yes - - -
MirrorLink - Yes - - -
NFC - Yes - - -
USB - Yes
Micro-USB
Yes Yes Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- Yes
802.11 b,g
-
Contacts
Picture ID Yes n/a Yes n/a -
Ringer ID Yes n/a Yes n/a Yes
Voice Dialing - n/a Yes n/a Yes
Customization
Changeable Body Plates - - - - Yes
Custom Graphics Yes n/a Yes n/a -
Custom Ringtones Yes n/a Yes n/a Yes
Real-Music Ringers - n/a Yes n/a -
Data & Network
Data Tethering - n/a Yes n/a Yes
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes - Yes -
Memory
Memory Card Slot - - Yes Yes -
Messaging
Email Client - n/a Yes n/a -
EMS / Picture Messaging Yes n/a - n/a Yes
Instant Messaging - n/a Yes n/a -
MMS Yes n/a Yes n/a -
Text Messaging Templates Yes n/a Yes n/a -
Music
Headphone Jack (3.5mm) - Yes - Yes -
Music Player - n/a Yes n/a -
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - -
TV Output - Yes - - -
Power
Fast Charging - Yes - - -
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List Yes n/a - n/a -
Voice Memo Yes n/a Yes n/a Yes
Software
BREW - n/a Yes n/a -
Games Yes n/a Yes n/a Yes
Java (J2ME) Yes n/a - n/a Yes
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) Yes n/a Yes n/a Yes
Push-To-Talk - - Yes - -
Speaker Phone Yes Yes Yes Yes -
  Samsung SGH-X640 Samsung Galaxy S6 (GSM) Casio G'zOne Rock BlackBerry Storm2 9550 Motorola v66i
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung Galaxy S6 (GSM) Casio G'zOne Rock BlackBerry Storm2 9550 Motorola v66i

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