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Phone	Samsung Nexus S 4G	Pantech Duo C810	HTC Amaze 4G	Audiovox CDM-8500	Samsung Trance SCH-U490
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4" diag. 5 : 3	2.2" diag. 4 : 3	4.3" diag. 16 : 9	?	2.1" diag. 4 : 3
Display Resolution & Type	480 x 800 pixels (~233 ppi) AMOLED	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	540 x 960 pixels (~256 ppi) LCD (TFT/TFD)	?	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	?	?
Battery	1,500 mAh	1,320 mAh	1,730 mAh	?	?
Processor	1 GHz Samsung Hummingbird Cortex A8	ARM 920t PXA27x	1.5 GHz Qualcomm Snapdragon S3 dual-core	?	?
RAM	?	?	1 GB	?	?
Storage	16 GB	? raw hardware	16 GB	? raw hardware	? raw hardware
Main Camera	5 megapixel	1 megapixel	8 megapixel	-	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	WVGA / 480p	QVGA (320 x 240)	1080p HD	-	-
Front Camera	Yes	-	2 megapixel	-	-
Weight	4.62 oz (131g)	3.88 oz (110g)	6.1 oz (173g)	3.2 oz (91g)	3.53 oz (100g)
Dimensions	4.88" x 2.48" x 0.44" (124 x 63 x 11.2 mm)	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)	5.12" x 2.58" x 0.46" (130 x 66 x 11.7 mm)	3.3" x 1.6" x 0.9" (84 x 41 x 22.9 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)
Form Factor	Slab	Slide	Slab	Clamshell	Slide
Platform / OS	Android	Windows Mobile Standard	Android	(proprietary)	(proprietary)
Network Bands	4G WiMAX: 41 CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900
Data Technology	WiMAX	HSDPA 1.8	HSPA+ 42	1xRTT	1xRTT
Features
Flashlight	-	-	Yes	-	-
GPS / Location	n/a	n/a	n/a	Yes	Yes
Accessibility
Adjustable Text Size	n/a	n/a	n/a	-	Yes
Hearing Aid Compatible	Yes M4 (very compatible)	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	n/a	n/a	Yes	Yes
TTY/TDD (Digital)	-	-	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	Yes	-
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	n/a	n/a	n/a	-	-
NFC	Yes	-	Yes	-	-
USB	Yes Micro-USB	Yes	Yes	-	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 a,b,g,n)	-	-
Contacts
Picture ID	n/a	n/a	n/a	-	Yes
Ringer ID	n/a	n/a	n/a	Yes	Yes
Voice Dialing	n/a	n/a	n/a	Yes	Yes
Customization
Custom Graphics	n/a	n/a	n/a	-	Yes
Custom Ringtones	n/a	n/a	n/a	-	Yes
Real-Music Ringers	n/a	n/a	n/a	-	Yes
Data & Network
Data Tethering	n/a	n/a	n/a	Yes	Yes
WAP / Web Browser	n/a	n/a	n/a	Yes	Yes
Input
Predictive Text Entry	n/a	n/a	n/a	Yes	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	Yes Capacitive	-	Yes Capacitive	-	-
Memory
Memory Card Slot	-	Yes	Yes	-	Yes
Messaging
Email Client	n/a	n/a	n/a	-	-
Instant Messaging	n/a	n/a	n/a	-	-
MMS	n/a	n/a	n/a	-	Yes
Text Messaging Templates	n/a	n/a	n/a	-	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	n/a	n/a	n/a	-	Yes
Photo & Video
DLNA	-	-	Yes	-	-
TV Output	-	-	Yes	-	-
Productivity
Alarm	n/a	n/a	n/a	Yes	Yes
Calculator	n/a	n/a	n/a	Yes	Yes
Calendar	n/a	n/a	n/a	Yes	Yes
To-Do List	n/a	n/a	n/a	-	-
Voice Memo	n/a	n/a	n/a	Yes	Yes
Software
BREW	n/a	n/a	n/a	Yes *	Yes
Games	n/a	n/a	n/a	Yes	Yes
Voice
Headset Jack (2.5 mm)	n/a	n/a	n/a	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung Nexus S 4G	Pantech Duo C810	HTC Amaze 4G	Audiovox CDM-8500	Samsung Trance SCH-U490
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Nexus S 4G	Pantech Duo C810	HTC Amaze 4G	Audiovox CDM-8500	Samsung Trance SCH-U490