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Phone	Samsung SGH-X640	ZTE Blade Max 3 / Max Blue	Samsung Galaxy S 4 mini (Sprint, U.S. Cellular)	Sony Ericsson T68i	Samsung SCH-A990
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	6" diag. 16 : 9	4.3" diag. 16 : 9	?	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)	540 x 960 pixels (~256 ppi) AMOLED	101 x 80 pixels LCD (STN)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	?	?
Battery	800 mAh	4,000 mAh	1,900 mAh	700 mAh	1,000 mAh
Processor	?	2 GHz Qualcomm Snapdragon 625 (MSM8953)	1.7 GHz Qualcomm Snapdragon MSM8930 Pro (MSM8930AB)	?	?
RAM	?	2 GB	1.5 GB	?	?
Storage	? raw hardware	16 GB	16 GB	? raw hardware	? raw hardware
Main Camera	Yes	13 megapixel	8 megapixel	-	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	4K UHD	1080p HD	-	?
Front Camera	-	5 megapixel	2 megapixel	-	-
Weight	3 oz (85g)	6.34 oz (180g)	3.77 oz (107g)	2.96 oz (84g)	4.4 oz (125g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	6.49" x 3.3" x 0.35" (165 x 84 x 8.9 mm)	4.9" x 2.41" x 0.35" (124 x 61 x 8.9 mm)	3.94" x 1.89" x 0.79" (100 x 48 x 20.1 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Clamshell
Platform / OS	(proprietary)	Android	Android	(proprietary)	(proprietary)
Network Bands	GSM: 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 13, 25 WCDMA: 2, 4, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900 *	GSM: 900, 1800, 1900	CDMA: 850, 1900
Data Technology	GPRS	LTE (Cat 4)	LTE (Cat 3)	GPRS	EVDO r0
Features
Fingerprint Reader	-	Yes stand-alone	-	-	-
Flashlight	-	Yes	-	-	Yes
GPS / Location	-	n/a	n/a	-	Yes
Accessibility
Adjustable Text Size	-	n/a	n/a	-	-
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M3 (mostly compatible)
Multiple Languages	Yes	n/a	n/a	Yes	Yes
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	Yes	Yes	-
Mobile Hotspot	-	n/a	n/a	-	-
NFC	-	-	Yes	-	-
USB	-	Yes USB Type C	Yes	-	Yes
Wi-Fi	-	Yes 5 (802.11 ac,b,g,n)	Yes 4 (802.11 a,b,g,n)	-	-
Contacts
Picture ID	Yes	n/a	n/a	Yes	Yes
Ringer ID	Yes	n/a	n/a	Yes	Yes
Voice Dialing	-	n/a	n/a	Yes	Yes
Customization
Custom Graphics	Yes	n/a	n/a	Yes	Yes
Custom Ringtones	Yes	n/a	n/a	Yes	Yes
Real-Music Ringers	-	n/a	n/a	-	Yes
Data & Network
Data Tethering	-	n/a	n/a	Yes	Yes
WAP / Web Browser	Yes	n/a	n/a	Yes	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	Yes
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	Yes	-
EMS / Picture Messaging	Yes	n/a	n/a	Yes	Yes
Instant Messaging	-	n/a	n/a	-	-
MMS	Yes	n/a	n/a	Yes	Yes
Text Messaging Templates	Yes	n/a	n/a	Yes	Yes
Music
Headphone Jack (3.5mm)	-	Yes	Yes	-	-
Music Player	-	n/a	n/a	-	Yes
Stereo Speakers	-	-	-	-	Yes
Photo & Video
DLNA	-	-	Yes	-	-
Miracast	-	-	Yes	-	-
TV Output	-	-	-	-	Yes
Power
Fast Charging	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	Yes
Calculator	Yes	n/a	n/a	Yes	Yes
Calendar	Yes	n/a	n/a	Yes	Yes
To-Do List	Yes	n/a	n/a	Yes	-
Voice Memo	Yes	n/a	n/a	Yes	Yes
Software
BREW	-	n/a	n/a	-	Yes
Games	Yes	n/a	n/a	Yes	Yes
Java (J2ME)	Yes	n/a	n/a	-	-
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	-	-
Speaker Phone	Yes	Yes	Yes	-	Yes
	Samsung SGH-X640	ZTE Blade Max 3 / Max Blue	Samsung Galaxy S 4 mini (Sprint, U.S. Cellular)	Sony Ericsson T68i	Samsung SCH-A990
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	ZTE Blade Max 3 / Max Blue	Samsung Galaxy S 4 mini (Sprint, U.S. Cellular)	Sony Ericsson T68i	Samsung SCH-A990