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Specifications
	X >	< X >	< X >	< X >	< X

Phone	AT&T Vista	Ericsson T66	Kyocera Energi K490 / K493 / K494	Samsung SCH-A990	Samsung Droid Charge
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	5.5" diag. 18 : 9	?	?	?	4.3" diag. 5 : 3
Display Resolution & Type	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)	?	104 x 80 pixels LCD (STN)	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	2,450 mAh	?	?	1,000 mAh	1,500 mAh
Processor	2 GHz MediaTek Helio A22 (MT6761V)	?	?	?	1 GHz Samsung Hummingbird
RAM	3 GB	?	?	?	?
Storage	32 GB	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	8 megapixel	-	-	3 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	-	-	?	720p HD
Front Camera	5 megapixel	-	-	-	1 megapixel
Weight	5.51 oz (156g)	2.08 oz (59g)	3.52 oz (100g)	4.4 oz (125g)	5.06 oz (144g)
Dimensions	5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm)	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	4.45" x 1.89" x 0.91" (113 x 48 x 23.1 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	5.1" x 2.68" x 0.46" (130 x 68 x 11.7 mm)
Form Factor	Slab	Slab	Slab	Clamshell	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8	GSM: 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850 *	CDMA: 850, 1900	4G LTE: 13 CDMA: 850, 1900
Data Technology	LTE (Cat 4)	-	1xRTT	EVDO r0	LTE (Cat 3)
Features
Flashlight	Yes	-	Yes	Yes	-
GPS / Location	n/a	-	Yes	Yes	n/a
Accessibility
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	-	-	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	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
USB	Yes USB Type C	-	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes	-	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	-	-	Yes	n/a
Ringer ID	n/a	-	Yes	Yes	n/a
Voice Dialing	n/a	-	Yes	Yes	n/a
Customization
Changeable Body Plates	-	-	Yes	-	-
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	-	-	Yes	n/a
Data & Network
Data Tethering	n/a	-	Yes	Yes	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	-	Yes	Yes
Touch Screen	Yes Capacitive	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	-	Yes	Yes
Messaging
Email Client	n/a	-	-	-	n/a
EMS / Picture Messaging	n/a	Yes	Yes	Yes	n/a
Instant Messaging	n/a	-	-	-	n/a
MMS	n/a	-	-	Yes	n/a
Text Messaging Templates	n/a	Yes	-	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	-	-	Yes	n/a
Stereo Speakers	-	-	-	Yes	-
Photo & Video
DLNA	-	-	-	-	Yes
TV Output	-	-	-	Yes	Yes
Video Calling	n/a	-	-	-	n/a
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	Yes	-	-	n/a
Voice Memo	n/a	-	-	Yes	n/a
Software
BREW	n/a	-	Yes	Yes	n/a
Games	n/a	Yes	Yes	Yes	n/a
Voice
HD Voice	Yes	-	-	-	-
Headset Jack (2.5 mm)	n/a	-	Yes	-	n/a
Speaker Phone	Yes	-	-	Yes	Yes
	* Some versions only
	AT&T Vista	Ericsson T66	Kyocera Energi K490 / K493 / K494	Samsung SCH-A990	Samsung Droid Charge
	X >	< X >	< X >	< X >	< X

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


Phone	AT&T Vista	Ericsson T66	Kyocera Energi K490 / K493 / K494	Samsung SCH-A990	Samsung Droid Charge