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Phone	Sony Ericsson T61c	Kyocera DuraForce	Samsung SGH-X640	Samsung SCH-A570	ZTE Speed
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.5" diag. 16 : 9	?	?	4.5" diag. 16 : 9
Display Resolution & Type	?	720 x 1280 pixels (~326 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	?	3,100 mAh	800 mAh	?	2,000 mAh
Processor	?	1.4 GHz Qualcomm Snapdragon 400 (MSM8928)	?	?	1.2 GHz Qualcomm Snapdragon 410 MSM8916
RAM	?	2 GB	?	?	1 GB
Storage	? raw hardware	16 GB	? raw hardware	? raw hardware	8 GB
Main Camera	-	8 megapixel	Yes	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	1080p HD	-	-	720p HD
Front Camera	-	2 megapixel	-	-	2 megapixel
Weight	4.4 oz (125g)	7.06 oz (200g)	3 oz (85g)	3.6 oz (102g)	4.8 oz (136g)
Dimensions	4.8" x 2.13" x 0.92" (122 x 54 x 23.4 mm)	5.39" x 2.78" x 0.55" (137 x 71 x 14 mm)	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.3" x 1.8" x 0.9" (84 x 46 x 22.9 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)
Form Factor	Slab	Slab	Clamshell	Clamshell	Slab
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	4G LTE: 1, 2, 4, 5, 7, 17 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 *	GSM: 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900
Data Technology	1xRTT	LTE (Cat 3)	GPRS	1xRTT	LTE (Cat 3)
Features
Flashlight	-	Yes	-	-	-
GPS / Location	Yes	n/a	-	Yes	n/a
Ruggedized	-	Yes	-	-	-
Water-Resistant	-	Yes IPX8 (SCUBA)	-	-	-
Accessibility
Adjustable Text Size	-	n/a	-	-	n/a
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	-	-	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	-	Yes	-	Yes	Yes
Alerts
Extra Display	-	-	-	Yes	-
Ringer Profiles	Yes	-	-	-	-
Connectivity
Bluetooth	Yes	Yes	-	-	Yes
Mobile Hotspot	-	n/a	-	-	n/a
NFC	-	Yes	-	-	-
USB	-	Yes Micro-USB	-	-	Yes Micro-USB
Wi-Fi	-	Yes 5 (802.11 a,ac,b,g,n)	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	-	n/a	Yes	-	n/a
Ringer ID	-	n/a	Yes	-	n/a
Voice Dialing	Yes	n/a	-	Yes	n/a
Customization
Changeable Body Plates	Yes	-	-	-	-
Custom Graphics	Yes	n/a	Yes	Yes	n/a
Custom Ringtones	Yes	n/a	Yes	Yes	n/a
Real-Music Ringers	-	n/a	-	-	n/a
Data & Network
Data Tethering	Yes	n/a	-	-	n/a
WAP / Web Browser	Yes	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	Yes Capacitive	-	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	-	-	Yes
Messaging
Email Client	-	n/a	-	-	n/a
EMS / Picture Messaging	Yes	n/a	Yes	Yes	n/a
Instant Messaging	-	n/a	-	-	n/a
MMS	-	n/a	Yes	-	n/a
Text Messaging Templates	Yes	n/a	Yes	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	-	n/a	-	-	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
DLNA	-	Yes	-	-	-
Miracast	-	Yes	-	-	-
Power
Wireless Charging	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	-	n/a	Yes	Yes	n/a
Voice Memo	Yes	n/a	Yes	Yes	n/a
Software
BREW	-	n/a	-	Yes	n/a
Games	Yes	n/a	Yes	Yes	n/a
Java (J2ME)	-	n/a	Yes	-	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	Yes	n/a	Yes	Yes	n/a
Push-To-Talk	-	Yes *	-	-	-
Speaker Phone	-	Yes	Yes	-	Yes
	* Some versions only
	Sony Ericsson T61c	Kyocera DuraForce	Samsung SGH-X640	Samsung SCH-A570	ZTE Speed
	X >	< X >	< X >	< X >	< X

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


Phone	Sony Ericsson T61c	Kyocera DuraForce	Samsung SGH-X640	Samsung SCH-A570	ZTE Speed