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Phone Samsung SGH-X640 Samsung Galaxy S6 (CDMA) Motorola Droid Ultra Samsung Glyde U940 Motorola V710
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.1" diag.
16 : 9
5" diag.
16 : 9
2.8" diag.
16.5 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
720 x 1280 pixels
(~294 ppi)
AMOLED
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery 800 mAh 2,550 mAh 2,130 mAh 1,000 mAh ?
Processor ? 2.1 GHz Samsung Exynos 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T ? ?
RAM ? 3 GB 2 GB ? ?
Storage ? raw hardware 32 GB * 16 GB ? raw hardware ? raw hardware
Main Camera Yes 16 megapixel 10 megapixel 2 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 4K UHD 1080p HD QVGA (320 x 240) ?
Front Camera - 5 megapixel 2 megapixel - -
Weight 3 oz
(85g)
4.87 oz
(138g)
4.83 oz
(137g)
4.2 oz
(119g)
4.06 oz
(115g)
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)
5.41" x 2.8" x 0.28"
(137 x 71 x 7.2 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
3.7" x 1.93" x 0.92"
(94 x 49 x 23.4 mm)
Form Factor Clamshell Slab Slab Slide Clamshell
Platform / OS (proprietary) Android Android (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS LTE (Cat 4) LTE (Cat 3) EVDO r0 1xRTT
Features 
Fingerprint Reader - Yes - - -
Flashlight - Yes - - -
GPS / Location - n/a n/a Yes Yes
VR-ready - Yes - - -
Accessibility
Adjustable Text Size - n/a n/a - -
Hearing Aid Compatible - Yes Yes Yes Yes
Multiple Languages Yes n/a n/a Yes Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth - Yes Yes Yes Yes
Infrared (IR) - Yes - - -
MirrorLink - Yes - - -
Mobile Hotspot - n/a n/a - -
NFC - Yes Yes - -
USB - Yes
Micro-USB
Yes
Micro-USB
Yes Yes *
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
- -
Contacts
Picture ID Yes n/a n/a Yes Yes
Ringer ID Yes n/a n/a Yes Yes
Voice Dialing - n/a n/a Yes Yes
Customization
Custom Graphics Yes n/a n/a Yes Yes
Custom Ringtones Yes n/a n/a Yes Yes
Real-Music Ringers - n/a n/a Yes Yes
Data & Network
Data Tethering - n/a n/a Yes Yes
WAP / Web Browser Yes n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - Yes Yes Yes -
Memory
Memory Card Slot - - - Yes Yes
Messaging
Email Client - n/a n/a - Yes *
EMS / Picture Messaging Yes n/a n/a - Yes
Instant Messaging - n/a n/a - -
MMS Yes n/a n/a Yes Yes
Text Messaging Templates Yes n/a n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes Yes - -
Music Player - n/a n/a Yes Yes
Photo & Video
DLNA - Yes - - -
Miracast - Yes Yes - -
TV Output - Yes - - -
Power
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List Yes n/a n/a - -
Voice Memo Yes n/a n/a - Yes
Software
BREW - n/a n/a Yes Yes
Games Yes n/a n/a Yes Yes
Java (J2ME) Yes n/a n/a - -
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) Yes n/a n/a Yes Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Samsung Galaxy S6 (CDMA) Motorola Droid Ultra Samsung Glyde U940 Motorola V710
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 Samsung Galaxy S6 (CDMA) Motorola Droid Ultra Samsung Glyde U940 Motorola V710

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