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Phone	Samsung Trance SCH-U490	Pantech Duo C810	Palm Pre (CDMA)	Samsung Memoir SGH-T929	HTC Amaze 4G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.1" diag. 4 : 3	2.2" diag. 4 : 3	3.1" diag. 5 : 3	3.1" diag. 5 : 3	4.3" diag. 16 : 9
Display Resolution & Type	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	240 x 400 pixels (~150 ppi) LCD (TFT/TFD)	540 x 960 pixels (~256 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	1,320 mAh	1,150 mAh	?	1,730 mAh
Processor	?	ARM 920t PXA27x	TI OMAP 3430	?	1.5 GHz Qualcomm Snapdragon S3 dual-core
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	1 megapixel	1 megapixel	3 megapixel	8 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	QVGA (320 x 240)	?	?	1080p HD
Front Camera	-	-	-	-	2 megapixel
Weight	3.53 oz (100g)	3.88 oz (110g)	4.76 oz (135g)	4.4 oz (125g)	6.1 oz (173g)
Dimensions	4" x 1.97" x 0.55" (102 x 50 x 14 mm)	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)	3.9" x 2.3" x 0.67" (99 x 58 x 17 mm)	4.17" x 2.11" x 0.55" (106 x 54 x 14 mm)	5.12" x 2.58" x 0.46" (130 x 66 x 11.7 mm)
Form Factor	Slide	Slide	Slide	Slab	Slab
Platform / OS	(proprietary)	Windows Mobile Standard	webOS	(proprietary)	Android
Network Bands	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	HSDPA 1.8	EVDO rA	HSDPA 3.6	HSPA+ 42
Features
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	n/a	Yes	n/a
Accessibility
Adjustable Text Size	Yes	n/a	n/a	-	n/a
Hearing Aid Compatible	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M4 (very compatible)	Yes M3 (mostly compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	-	n/a
NFC	-	-	-	-	Yes
USB	Yes	Yes	Yes Micro-USB	Yes	Yes
Wi-Fi	-	-	Yes 802.11 b,g	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	-	n/a
Voice Dialing	Yes	n/a	n/a	Yes	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	Yes	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	-	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	Yes	-	-
Touch Screen	-	-	Yes Capacitive	Yes	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	-	Yes	Yes
Messaging
Email Client	-	n/a	n/a	Yes	n/a
Instant Messaging	-	n/a	n/a	Yes	n/a
MMS	Yes	n/a	n/a	Yes	n/a
Text Messaging Templates	Yes	n/a	n/a	Yes	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	Yes	n/a	n/a	Yes	n/a
Photo & Video
DLNA	-	-	-	-	Yes
TV Output	-	-	-	Yes	Yes
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	Yes	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	Yes	n/a
Software
BREW	Yes	n/a	n/a	-	n/a
Games	Yes	n/a	n/a	Yes	n/a
Voice
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung Trance SCH-U490	Pantech Duo C810	Palm Pre (CDMA)	Samsung Memoir SGH-T929	HTC Amaze 4G
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Trance SCH-U490	Pantech Duo C810	Palm Pre (CDMA)	Samsung Memoir SGH-T929	HTC Amaze 4G