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Phone	Samsung SGH-X640	ZTE Blade Vantage	Coolpad Conjr	Nokia 3555	Samsung Galaxy S6 (GSM)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	5" diag. 16 : 9	5" diag. 16 : 9	1.8" diag. 4 : 3	5.1" diag. 16 : 9
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	720 x 1280 pixels (~294 ppi) LCD (TFT/TFD)	128 x 160 pixels (~114 ppi) LCD (TFT/TFD)	1440 x 2560 pixels (~576 ppi) AMOLED
Display Refresh	?	60 Hz	60 Hz	?	60 Hz
Battery	800 mAh	2,500 mAh	2,500 mAh	?	2,550 mAh
Processor	?	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	1 GHz MediaTek MT6735	?	2.1 GHz Samsung Exynos 7420
RAM	?	2 GB	3 GB	?	3 GB
Storage	? raw hardware	16 GB	16 GB	? raw hardware	32 GB *
Main Camera	Yes	8 megapixel	13 megapixel	Yes	16 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	1080p HD	QCIF (176 x 144)	4K UHD
Front Camera	-	2 megapixel	8 megapixel	-	5 megapixel
Weight	3 oz (85g)	5.29 oz (150g)	5.14 oz (146g)	3.32 oz (94g)	4.87 oz (138g)
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)	5.72" x 2.86" x 0.35" (145 x 73 x 8.8 mm)	3.94" x 1.75" x 0.83" (100 x 44 x 21 mm)	5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm)
Form Factor	Clamshell	Slab	Slab	Clamshell	Slab
Platform / OS	(proprietary)	Android	Android	(proprietary)	Android
Network Bands	GSM: 900, 1800, 1900	4G LTE: 2, 4, 5, 13	4G LTE: 2, 4, 5, 7, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 4 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	LTE (Cat 4)	LTE (Cat 4)	WCDMA (UMTS)	LTE (Cat 6)
Features
Fingerprint Reader	-	-	Yes stand-alone	-	Yes
Flashlight	-	Yes	Yes	-	Yes
VR-ready	-	-	-	-	Yes
Accessibility
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes * M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Alerts
Extra Display	-	-	-	Yes	-
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
MirrorLink	-	-	-	-	Yes
NFC	-	-	-	-	Yes
USB	-	Yes Micro-USB	Yes Micro-USB	Yes	Yes Micro-USB
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-	Yes 5 (802.11 a,ac,b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	Yes	n/a
Voice Dialing	-	n/a	n/a	Yes	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	-	n/a	n/a	Yes	n/a
Data & Network
Dual-SIM	-	-	Yes	-	-
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	Yes Capacitive	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	Yes	-
Messaging
EMS / Picture Messaging	Yes	n/a	n/a	-	n/a
Instant Messaging	-	n/a	n/a	Yes *	n/a
MMS	Yes	n/a	n/a	Yes	n/a
Text Messaging Templates	Yes	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	Yes	-	Yes
Music Player	-	n/a	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	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	Yes	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	Yes	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	Yes	n/a
Software
Games	Yes	n/a	n/a	Yes	n/a
Java (J2ME)	Yes	n/a	n/a	Yes	n/a
Voice
HD Voice	-	Yes	-	-	Yes
Headset Jack (2.5 mm)	Yes	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-X640	ZTE Blade Vantage	Coolpad Conjr	Nokia 3555	Samsung Galaxy S6 (GSM)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	ZTE Blade Vantage	Coolpad Conjr	Nokia 3555	Samsung Galaxy S6 (GSM)