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Phone	Samsung SGH-X640	Samsung Galaxy S6 (GSM)	ZTE Blade Vantage	HTC G2	Motorola V551 / V330 / V547 / V555 / V557
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	5.1" diag. 16 : 9	5" diag. 16 : 9	3.7" diag. 5 : 3	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	1440 x 2560 pixels (~576 ppi) AMOLED	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	480 x 800 pixels (~252 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	60 Hz	?
Battery	800 mAh	2,550 mAh	2,500 mAh	1,300 mAh	820 mAh
Processor	?	2.1 GHz Samsung Exynos 7420	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	800 MHz Qualcomm S2 MSM7230	?
RAM	?	3 GB	2 GB	?	?
Storage	? raw hardware	32 GB *	16 GB	? raw hardware	? raw hardware
Main Camera	Yes	16 megapixel	8 megapixel	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	4K UHD	720p HD	720p HD	?
Front Camera	-	5 megapixel	2 megapixel	-	-
Weight	3 oz (85g)	4.87 oz (138g)	5.29 oz (150g)	6.5 oz (184g)	4.23 oz (120g)
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)	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)	4.68" x 2.37" x 0.55" (119 x 60 x 14 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Clamshell
Platform / OS	(proprietary)	Android	Android	Android	(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 *	4G LTE: 2, 4, 5, 13	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *
Data Technology	GPRS	LTE (Cat 6)	LTE (Cat 4)	HSPA 14.4	EDGE
Features
Fingerprint Reader	-	Yes	-	-	-
Flashlight	-	Yes	Yes	-	-
GPS / Location	-	n/a	n/a	n/a	-
VR-ready	-	Yes	-	-	-
Accessibility
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	-
Multiple Languages	Yes	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
MirrorLink	-	Yes	-	-	-
Mobile Hotspot	-	n/a	n/a	n/a	-
NFC	-	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 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	Yes	n/a	n/a	n/a	Yes
Ringer ID	Yes	n/a	n/a	n/a	Yes
Voice Dialing	-	n/a	n/a	n/a	Yes
Customization
Custom Graphics	Yes	n/a	n/a	n/a	Yes
Custom Ringtones	Yes	n/a	n/a	n/a	Yes
Real-Music Ringers	-	n/a	n/a	n/a	Yes
Data & Network
Data Tethering	-	n/a	n/a	n/a	Yes
WAP / Web Browser	Yes	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	-	Yes Capacitive	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	-	Yes	Yes	-
Messaging
Email Client	-	n/a	n/a	n/a	Yes
EMS / Picture Messaging	Yes	n/a	n/a	n/a	Yes
Instant Messaging	-	n/a	n/a	n/a	Yes
MMS	Yes	n/a	n/a	n/a	Yes
Text Messaging Templates	Yes	n/a	n/a	n/a	Yes
Music
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	-
Music Player	-	n/a	n/a	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	n/a	Yes
Calculator	Yes	n/a	n/a	n/a	Yes
Calendar	Yes	n/a	n/a	n/a	Yes
To-Do List	Yes	n/a	n/a	n/a	-
Voice Memo	Yes	n/a	n/a	n/a	Yes
Software
Games	Yes	n/a	n/a	n/a	Yes
Java (J2ME)	Yes	n/a	n/a	n/a	Yes
Voice
HD Voice	-	Yes	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SGH-X640	Samsung Galaxy S6 (GSM)	ZTE Blade Vantage	HTC G2	Motorola V551 / V330 / V547 / V555 / V557
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Samsung Galaxy S6 (GSM)	ZTE Blade Vantage	HTC G2	Motorola V551 / V330 / V547 / V555 / V557