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Phone	Samsung SGH-X640	Sony Ericsson T68i	ZTE Blade Max 3 / Max Blue	Samsung SCH-A990	Samsung Galaxy S 4 mini (Sprint, U.S. Cellular)
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)	101 x 80 pixels LCD (STN)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	540 x 960 pixels (~256 ppi) AMOLED
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	800 mAh	700 mAh	4,000 mAh	1,000 mAh	1,900 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	? raw hardware	16 GB	? raw hardware	16 GB
Main Camera	Yes	-	13 megapixel	3 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	4K UHD	?	1080p HD
Front Camera	-	-	5 megapixel	-	2 megapixel
Weight	3 oz (85g)	2.96 oz (84g)	6.34 oz (180g)	4.4 oz (125g)	3.77 oz (107g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.94" x 1.89" x 0.79" (100 x 48 x 20.1 mm)	6.49" x 3.3" x 0.35" (165 x 84 x 8.9 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	4.9" x 2.41" x 0.35" (124 x 61 x 8.9 mm)
Form Factor	Clamshell	Slab	Slab	Clamshell	Slab
Platform / OS	(proprietary)	(proprietary)	Android	(proprietary)	Android
Network Bands	GSM: 900, 1800, 1900	GSM: 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 13, 25 WCDMA: 2, 4, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900 *
Data Technology	GPRS	GPRS	LTE (Cat 4)	EVDO r0	LTE (Cat 3)
Features
Fingerprint Reader	-	-	Yes stand-alone	-	-
Flashlight	-	-	Yes	Yes	-
GPS / Location	-	-	n/a	Yes	n/a
Accessibility
Adjustable Text Size	-	-	n/a	-	n/a
Hearing Aid Compatible	-	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	Yes	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	-	-	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	Yes	n/a	Yes	n/a
Ringer ID	Yes	Yes	n/a	Yes	n/a
Voice Dialing	-	Yes	n/a	Yes	n/a
Customization
Custom Graphics	Yes	Yes	n/a	Yes	n/a
Custom Ringtones	Yes	Yes	n/a	Yes	n/a
Real-Music Ringers	-	-	n/a	Yes	n/a
Data & Network
Data Tethering	-	Yes	n/a	Yes	n/a
WAP / Web Browser	Yes	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	Yes	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	-	Yes	n/a	-	n/a
EMS / Picture Messaging	Yes	Yes	n/a	Yes	n/a
Instant Messaging	-	-	n/a	-	n/a
MMS	Yes	Yes	n/a	Yes	n/a
Text Messaging Templates	Yes	Yes	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	-	-	n/a	Yes	n/a
Stereo Speakers	-	-	-	Yes	-
Photo & Video
DLNA	-	-	-	-	Yes
Miracast	-	-	-	-	Yes
TV Output	-	-	-	Yes	-
Power
Fast Charging	-	-	Yes	-	-
Productivity
Alarm	Yes	Yes	n/a	Yes	n/a
Calculator	Yes	Yes	n/a	Yes	n/a
Calendar	Yes	Yes	n/a	Yes	n/a
To-Do List	Yes	Yes	n/a	-	n/a
Voice Memo	Yes	Yes	n/a	Yes	n/a
Software
BREW	-	-	n/a	Yes	n/a
Games	Yes	Yes	n/a	Yes	n/a
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	Sony Ericsson T68i	ZTE Blade Max 3 / Max Blue	Samsung SCH-A990	Samsung Galaxy S 4 mini (Sprint, U.S. Cellular)
	X >	< X >	< X >	< X >	< X

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


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