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Phone	Alcatel 665	Samsung SGH-X640	ZTE ZMAX Pro	Samsung SGH-i250	Samsung Galaxy S6 (GSM)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Not yet released	Released
Display Size	1.8" diag. 4 : 3	?	6" diag. 16 : 9	?	5.1" diag. 16 : 9
Display Resolution & Type	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	1440 x 2560 pixels (~576 ppi) AMOLED
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	650 mAh	800 mAh	3,400 mAh	?	2,550 mAh
Processor	?	?	1.5 GHz Qualcomm Snapdragon 617 (MSM8952)	?	2.1 GHz Samsung Exynos 7420
RAM	16 MB	?	2 GB	?	3 GB
Storage	32 MB	? raw hardware	32 GB	? raw hardware	32 GB *
Main Camera	2 megapixel	Yes	13 megapixel	1 megapixel	16 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	-	1080p HD	?	4K UHD
Front Camera	-	-	5 megapixel	-	5 megapixel
Weight	2.72 oz (77g)	3 oz (85g)	6.17 oz (175g)	4.59 oz (130g)	4.87 oz (138g)
Dimensions	3.78" x 1.89" x 0.66" (96 x 48 x 16.8 mm)	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	6.5" x 3.3" x 0.35" (165 x 84 x 8.9 mm)	3.7" x 1.97" x 1.02" (94 x 50 x 25.9 mm)	5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm)
Form Factor	Clamshell	Clamshell	Slab	Clamshell	Slab
Platform / OS	(proprietary)	(proprietary)	Android	Windows Mobile Standard	Android
Network Bands	GSM: 850, 1900	GSM: 900, 1800, 1900	4G LTE: 2, 4, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	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 *
Data Technology	-	GPRS	LTE (Cat 4)	GPRS	LTE (Cat 6)
Features
Fingerprint Reader	-	-	Yes	-	Yes
Flashlight	-	-	Yes	-	Yes
GPS / Location	-	-	n/a	n/a	n/a
VR-ready	-	-	-	-	Yes
Accessibility
Adjustable Text Size	-	-	n/a	n/a	n/a
Hearing Aid Compatible	Yes M4 (very compatible)	-	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	-	-	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	Yes	-
Ringer Profiles	Yes	-	-	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 USB Type C	-	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	-	Yes 5 (802.11 a,ac,b,g,n)
Contacts
Picture ID	Yes	Yes	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	-	-	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	Yes	-	n/a	n/a	n/a
Data & Network
Data Tethering	-	-	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	Yes	-
Messaging
Email Client	-	-	n/a	n/a	n/a
EMS / Picture Messaging	-	Yes	n/a	n/a	n/a
Instant Messaging	Yes	-	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
FM Radio	Yes	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	Yes	-	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Miracast	-	-	Yes	-	Yes
TV Output	-	-	-	-	Yes
Power
Fast Charging	-	-	-	-	Yes
Wireless Charging	-	-	-	-	Yes
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	-	Yes	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	Yes	n/a	n/a	n/a
Voice
HD Voice	-	-	Yes	-	Yes
Headset Jack (2.5 mm)	-	Yes	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	Alcatel 665	Samsung SGH-X640	ZTE ZMAX Pro	Samsung SGH-i250	Samsung Galaxy S6 (GSM)
	X >	< X >	< X >	< X >	< X

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


Phone	Alcatel 665	Samsung SGH-X640	ZTE ZMAX Pro	Samsung SGH-i250	Samsung Galaxy S6 (GSM)