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Phone Samsung SGH-X640 Sony Ericsson T61c LG Trax CU575 Motorola Moto G4 Samsung Galaxy S6 (GSM)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 5.5" diag.
16 : 9
5.1" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
? 176 x 220 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
Display Refresh ? ? ? 60 Hz 60 Hz
Battery 800 mAh ? 980 mAh 3,000 mAh 2,550 mAh
Processor ? ? ? 1.5 GHz Qualcomm Snapdragon 617 2.1 GHz Samsung Exynos 7420
RAM ? ? ? 2 GB * 3 GB
Storage ? raw hardware ? raw hardware ? raw hardware 16 GB * 32 GB *
Main Camera Yes - 1 megapixel 13 megapixel 16 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - QCIF (176 x 144) 1080p HD 4K UHD
Front Camera - - - 5 megapixel 5 megapixel
Weight 3 oz
(85g)
4.4 oz
(125g)
3.89 oz
(110g)
5.47 oz
(155g)
4.87 oz
(138g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.8" x 2.13" x 0.92"
(122 x 54 x 23.4 mm)
3.89" x 2.01" x 0.62"
(99 x 51 x 15.7 mm)
6.02" x 3.02" x 0.39"
(153 x 77 x 9.8 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 25, 26, 41

WCDMA: 1, 2, 4, 5, 8

CDMA: 850, 1900

GSM: 850, 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

*

Data Technology GPRS 1xRTT HSDPA 3.6 LTE (Cat 4) LTE (Cat 6)
Features 
Fingerprint Reader - - - - Yes
Flashlight - - - Yes Yes
GPS / Location - Yes - n/a n/a
VR-ready - - - - Yes
Water-Resistant - - - Yes -
Accessibility
Adjustable Text Size - - - n/a n/a
Hearing Aid Compatible - - - Yes Yes
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) - - Yes Yes Yes
Alerts
Extra Display - - Yes - -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth - Yes Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - - - Yes
MirrorLink - - - - Yes
Mobile Hotspot - - - n/a n/a
NFC - - - - Yes
USB - - Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - - Yes
4 (802.11 a,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes - Yes n/a n/a
Ringer ID Yes - - n/a n/a
Voice Dialing - Yes Yes n/a n/a
Customization
Changeable Body Plates - Yes - Yes -
Custom Graphics Yes Yes Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers - - Yes n/a n/a
Data & Network
Data Tethering - Yes Yes n/a n/a
Dual-SIM - - - Yes * -
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - - Yes Yes
Memory
Memory Card Slot - - Yes Yes -
Messaging
Email Client - - Yes n/a n/a
EMS / Picture Messaging Yes Yes - n/a n/a
Instant Messaging - - Yes n/a n/a
MMS Yes - Yes n/a n/a
Text Messaging Templates Yes Yes Yes n/a n/a
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - - - Yes Yes
Music Player - - Yes n/a n/a
Photo & Video
DLNA - - - - Yes
Miracast - - - - Yes
TV Output - - - - Yes
Power
Fast Charging - - - Yes Yes
Wireless Charging - - - - Yes
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes Yes n/a n/a
To-Do List Yes - Yes n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
Games Yes Yes Yes n/a n/a
Java (J2ME) Yes - Yes n/a n/a
Voice
HD Voice - - - - Yes
Headset Jack (2.5 mm) Yes Yes - n/a n/a
Speaker Phone Yes - Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Sony Ericsson T61c LG Trax CU575 Motorola Moto G4 Samsung Galaxy S6 (GSM)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Sony Ericsson T61c LG Trax CU575 Motorola Moto G4 Samsung Galaxy S6 (GSM)

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