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Phone	Samsung SGH-X640	ZTE Prelude / Avail 2	Samsung Galaxy S6 (GSM)	Samsung Captivate Glide	BlackBerry 6280
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.5" diag. 5 : 3	5.1" diag. 16 : 9	4" diag. 5 : 3	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	1440 x 2560 pixels (~576 ppi) AMOLED	480 x 800 pixels (~233 ppi) AMOLED	?
Display Refresh	?	60 Hz	60 Hz	60 Hz	?
Battery	800 mAh	1,500 mAh	2,550 mAh	1,650 mAh	?
Processor	?	1 GHz Qualcomm Snapdragon MSM7225A	2.1 GHz Samsung Exynos 7420	1 GHz Nvidia Tegra 2 AP20H	?
RAM	?	512 MB	3 GB	1 GB	?
Storage	? raw hardware	4 GB	32 GB *	8 GB	? raw hardware
Main Camera	Yes	2 megapixel	16 megapixel	8 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	VGA (640 x 480)	4K UHD	720p HD	-
Front Camera	-	-	5 megapixel	1 megapixel	-
Weight	3 oz (85g)	4.4 oz (125g)	4.87 oz (138g)	5.2 oz (147g)	4.8 oz (136g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm)	5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm)	4.88" x 2.55" x 0.51" (124 x 65 x 13 mm)	4.45" x 2.91" x 0.83" (113 x 74 x 21.1 mm)
Form Factor	Clamshell	Slab	Slab	Slide	Slab
Platform / OS	(proprietary)	Android	Android	Android	BlackBerry OS
Network Bands	GSM: 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 1900	4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 1800, 1900
Data Technology	GPRS	HSPA 7.2	LTE (Cat 6)	HSPA+ 21	GPRS
Features
Fingerprint Reader	-	-	Yes	-	-
Flashlight	-	-	Yes	-	-
GPS / Location	-	n/a	n/a	n/a	n/a
VR-ready	-	-	Yes	-	-
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes M3, 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	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	-
Infrared (IR)	-	-	Yes	-	-
MirrorLink	-	-	Yes	-	-
Mobile Hotspot	-	n/a	n/a	n/a	n/a
NFC	-	-	Yes	-	-
USB	-	Yes	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 a,ac,b,g,n)	Yes	-
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	-	n/a	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	-	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	-	n/a	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	-
Text Keyboard, Hardware	-	-	-	Yes	Yes
Touch Screen	-	Yes Capacitive	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	Yes	-	Yes	-
Messaging
Email Client	-	n/a	n/a	n/a	n/a
EMS / Picture Messaging	Yes	n/a	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a	n/a
MMS	Yes	n/a	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	-
Music Player	-	n/a	n/a	n/a	n/a
Photo & Video
DLNA	-	-	Yes	Yes	-
Miracast	-	-	Yes	-	-
TV Output	-	-	Yes	Yes	-
Power
Fast Charging	-	-	Yes	-	-
Wireless Charging	-	-	Yes	-	-
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	Yes	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
Games	Yes	n/a	n/a	n/a	n/a
Java (J2ME)	Yes	n/a	n/a	n/a	n/a
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	-
	Samsung SGH-X640	ZTE Prelude / Avail 2	Samsung Galaxy S6 (GSM)	Samsung Captivate Glide	BlackBerry 6280
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Samsung SGH-X640	ZTE Prelude / Avail 2	Samsung Galaxy S6 (GSM)	Samsung Captivate Glide	BlackBerry 6280