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

Phone	Pantech Duo C810	Sony Ericsson Z550a	Samsung SGH-A187	Palm Pre (CDMA)	HTC ThunderBolt
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.2" diag. 4 : 3	1.9" diag. 4 : 3	?	3.1" diag. 5 : 3	4.3" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	176 x 220 pixels (~148 ppi) LCD (TFT/TFD)	220 x 176 pixels LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	1,320 mAh	?	800 mAh	1,150 mAh	1,400 mAh
Processor	ARM 920t PXA27x	?	?	TI OMAP 3430	1 GHz Qualcomm Snapdragon S2 MSM8655
RAM	?	?	?	?	768 MB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	1 megapixel	1 megapixel	1 megapixel	3 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	?	-	?	720p HD
Front Camera	-	-	-	-	1 megapixel
Weight	3.88 oz (110g)	3.26 oz (92g)	3.1 oz (88g)	4.76 oz (135g)	5.78 oz (164g)
Dimensions	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)	3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm)	4.33" x 2.28" x 0.47" (110 x 58 x 11.9 mm)	3.9" x 2.3" x 0.67" (99 x 58 x 17 mm)	4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm)
Form Factor	Slide	Clamshell	Slab	Slide	Slab
Platform / OS	Windows Mobile Standard	(proprietary)	(proprietary)	webOS	Android
Network Bands	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 13 CDMA: 850, 1900
Data Technology	HSDPA 1.8	GPRS	EDGE	EVDO rA	LTE (Cat 3)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	-	-	n/a	n/a
Accessibility
Hearing Aid Compatible	-	-	-	Yes M4 (very compatible)	Yes
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	Yes	Yes	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	n/a	-	-	n/a	n/a
USB	Yes	Yes	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	Yes	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	Yes	-	n/a	n/a
Customization
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	Yes	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	-	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	Yes	Yes	-
Touch Screen	-	-	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	n/a	Yes	Yes	n/a	n/a
Instant Messaging	n/a	-	Yes	n/a	n/a
MMS	n/a	Yes	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	Yes	n/a	n/a
Music
FM Radio	-	Yes	-	-	Yes
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	n/a	Yes	Yes	n/a	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Video Calling	n/a	-	-	n/a	n/a
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	Yes	-	n/a	n/a
Voice Memo	n/a	Yes	Yes	n/a	n/a
Software
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	Yes	Yes	n/a	n/a
Voice
Push-To-Talk	-	Yes *	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Pantech Duo C810	Sony Ericsson Z550a	Samsung SGH-A187	Palm Pre (CDMA)	HTC ThunderBolt
	X >	< X >	< X >	< X >	< X

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


Phone	Pantech Duo C810	Sony Ericsson Z550a	Samsung SGH-A187	Palm Pre (CDMA)	HTC ThunderBolt