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Phone	HTC EVO 4G	Motorola Charm	Samsung Vibrant (Galaxy S)	Samsung SGH-E400	Samsung Galaxy S II / SGH-i777
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Not yet released	Released
Display Size	4.3" diag. 5 : 3	2.8" diag. 4 : 3	4" diag. 5 : 3	?	4.3" diag. 5 : 3
Display Resolution & Type	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	128 x 144 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED
Display Refresh	60 Hz	60 Hz	60 Hz	?	60 Hz
Battery	1,500 mAh	1,170 mAh	1,500 mAh	700 mAh	1,650 mAh
Processor	1 GHz Qualcomm Snapdragon S1 QSD8650	720 MHz TI OMAP3410	1 GHz Samsung Hummingbird Cortex A8	?	1.2 GHz Samsung Exynos dual-core
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	16 GB	? raw hardware	16 GB
Main Camera	8 megapixel	3 megapixel	5 megapixel	-	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	?	720p HD	-	1080p HD
Front Camera	Yes	-	-	-	2 megapixel
Weight	6 oz (170g)	3.88 oz (110g)	4.16 oz (118g)	3.1 oz (88g)	4.3 oz (122g)
Dimensions	4.8" x 2.6" x 0.5" (122 x 66 x 12.7 mm)	3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm)	4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm)	3.46" x 1.65" x 0.89" (88 x 42 x 22.6 mm)	4.96" x 2.6" x 0.35" (126 x 66 x 8.9 mm)
Form Factor	Slab	Slab	Slab	Clamshell	Slab
Platform / OS	Android	Android	Android	(proprietary)	Android
Network Bands	4G WiMAX: 41 CDMA: 850, 1900	WCDMA: 4 GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	WiMAX	HSDPA 3.6	HSPA 7.2	GPRS	HSPA+ 21
Features
GPS / Location	n/a	n/a	n/a	-	n/a
Accessibility
Hearing Aid Compatible	Yes	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3 (mostly compatible)
Multiple Languages	n/a	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	-	Yes
Alerts
Extra Display	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	n/a	n/a	n/a	-	n/a
NFC	-	-	-	-	Yes
USB	Yes	Yes Micro-USB	Yes Micro-USB	-	Yes Micro-USB
Wi-Fi	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	Yes	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	n/a	n/a	n/a	-	n/a
Ringer ID	n/a	n/a	n/a	-	n/a
Voice Dialing	n/a	n/a	n/a	-	n/a
Customization
Custom Graphics	n/a	n/a	n/a	Yes	n/a
Custom Ringtones	n/a	n/a	n/a	Yes	n/a
Real-Music Ringers	n/a	n/a	n/a	-	n/a
Data & Network
Data Tethering	n/a	n/a	n/a	Yes	n/a
WAP / Web Browser	n/a	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	Yes Capacitive	Yes Capacitive	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	n/a	n/a	n/a	-	n/a
EMS / Picture Messaging	n/a	n/a	n/a	Yes	n/a
Instant Messaging	n/a	n/a	n/a	-	n/a
MMS	n/a	n/a	n/a	-	n/a
Text Messaging Templates	n/a	n/a	n/a	Yes	n/a
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	Yes	Yes	Yes	-	Yes
Music Player	n/a	n/a	n/a	-	n/a
Photo & Video
DLNA	-	-	Yes	-	Yes
TV Output	Yes	-	-	-	Yes
Productivity
Alarm	n/a	n/a	n/a	Yes	n/a
Calculator	n/a	n/a	n/a	Yes	n/a
Calendar	n/a	n/a	n/a	Yes	n/a
To-Do List	n/a	n/a	n/a	Yes	n/a
Voice Memo	n/a	n/a	n/a	-	n/a
Software
Games	n/a	n/a	n/a	Yes	n/a
Java (J2ME)	n/a	n/a	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	HTC EVO 4G	Motorola Charm	Samsung Vibrant (Galaxy S)	Samsung SGH-E400	Samsung Galaxy S II / SGH-i777
	X >	< X >	< X >	< X >	< X

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


Phone	HTC EVO 4G	Motorola Charm	Samsung Vibrant (Galaxy S)	Samsung SGH-E400	Samsung Galaxy S II / SGH-i777