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Phone	ZTE Agent	Samsung SGH-X640	Nokia N78	HTC EVO Design 4G / Hero S (CDMA)	LG VX-8500 Chocolate
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	?	2.4" diag. 4 : 3	4" diag. 16 : 9	?
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	900 mAh	800 mAh	1,200 mAh	1,520 mAh	800 mAh
Processor	?	?	369 MHz ARM 11	1.2 GHz Qualcomm Snapdragon S2 MSM8655	?
RAM	?	?	?	768 MB	?
Storage	? raw hardware	? raw hardware	? raw hardware	4 GB	? raw hardware
Main Camera	1 megapixel	Yes	3 megapixel	5 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	VGA (640 x 480)	720p HD	QCIF (176 x 144)
Front Camera	-	-	-	1 megapixel	-
Weight	3.53 oz (100g)	3 oz (85g)	3.59 oz (102g)	5.22 oz (148g)	3.53 oz (100g)
Dimensions	4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm)	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.45" x 1.93" x 0.59" (113 x 49 x 15.1 mm)	4.78" x 2.44" x 0.46" (122 x 62 x 11.8 mm)	3.8" x 1.88" x 0.69" (97 x 48 x 17.5 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Slide
Platform / OS	(proprietary)	(proprietary)	S60 (Symbian)	Android	(proprietary)
Network Bands	CDMA: 850, 1700, 1900	GSM: 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	4G WiMAX: 41 WCDMA: 1, 8 CDMA: 800, 850, 1900 GSM: 850, 1900 *	CDMA: 850, 1900
Data Technology	1xRTT	GPRS	HSDPA 3.6	WiMAX	EVDO r0
Features
Flashlight	-	-	-	Yes	-
GPS / Location	Yes	-	n/a	n/a	Yes
Accessibility
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	-	-	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	Yes	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	-	-	Yes	Yes
Alerts
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Mobile Hotspot	-	-	n/a	n/a	-
USB	Yes Micro-USB	-	Yes Micro-USB	Yes Micro-USB	-
Wi-Fi	-	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	-	Yes	n/a	n/a	Yes
Ringer ID	Yes	Yes	n/a	n/a	Yes
Voice Dialing	-	-	n/a	n/a	Yes
Customization
Custom Graphics	Yes	Yes	n/a	n/a	Yes
Custom Ringtones	Yes	Yes	n/a	n/a	Yes
Real-Music Ringers	Yes	-	n/a	n/a	Yes
Data & Network
Data Tethering	-	-	n/a	n/a	Yes
External Antenna Jack	-	-	n/a	n/a	Yes
WAP / Web Browser	Yes	Yes	n/a	n/a	Yes
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	-	-	Yes Capacitive	-
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	Yes	-	n/a	n/a	-
EMS / Picture Messaging	-	Yes	n/a	n/a	-
Instant Messaging	Yes	-	n/a	n/a	-
MMS	Yes	Yes	n/a	n/a	Yes
Text Messaging Templates	Yes	Yes	n/a	n/a	Yes
Music
FM Radio	-	-	Yes	Yes	-
FM Transmitter	-	-	n/a	n/a	-
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	-
Music Player	Yes	-	n/a	n/a	Yes
Stereo Speakers	-	-	Yes	-	-
Photo & Video
DLNA	-	-	-	Yes	-
TV Output	-	-	Yes	-	-
Video Calling	-	-	n/a	n/a	-
Productivity
Alarm	Yes	Yes	n/a	n/a	Yes
Calculator	Yes	Yes	n/a	n/a	Yes
Calendar	Yes	Yes	n/a	n/a	Yes
To-Do List	-	Yes	n/a	n/a	-
Voice Memo	Yes	Yes	n/a	n/a	Yes
Software
BREW	Yes	-	n/a	n/a	Yes
Games	Yes	Yes	n/a	n/a	Yes
Java (J2ME)	-	Yes	n/a	n/a	-
Voice
Headset Jack (2.5 mm)	-	Yes	n/a	n/a	-
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes *
	* Some versions only
	ZTE Agent	Samsung SGH-X640	Nokia N78	HTC EVO Design 4G / Hero S (CDMA)	LG VX-8500 Chocolate
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Agent	Samsung SGH-X640	Nokia N78	HTC EVO Design 4G / Hero S (CDMA)	LG VX-8500 Chocolate