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Specifications
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Phone	HTC ThunderBolt	Motorola Charm	Samsung Trance SCH-U490	HTC Desire 520	HP iPAQ hw6510 / hw6515
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.3" diag. 5 : 3	2.8" diag. 4 : 3	2.1" diag. 4 : 3	4.5" diag. 16 : 9	?
Display Resolution & Type	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	240 x 240 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	?	60 Hz	?
Battery	1,400 mAh	1,170 mAh	?	2,000 mAh	1,200 mAh
Processor	1 GHz Qualcomm Snapdragon S2 MSM8655	720 MHz TI OMAP3410	?	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	312 MHz Intel XScale PXA272
RAM	768 MB	?	?	1 GB	?
Storage	8 GB	? raw hardware	? raw hardware	8 GB	? raw hardware
Main Camera	8 megapixel	3 megapixel	1 megapixel	8 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	?	-	720p HD	?
Front Camera	1 megapixel	-	-	2 megapixel	-
Weight	5.78 oz (164g)	3.88 oz (110g)	3.53 oz (100g)	4.9 oz (139g)	5.8 oz (164g)
Dimensions	4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm)	3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)	5.5" x 2.71" x 0.36" (140 x 69 x 9 mm)	4.65" x 2.8" x 0.71" (118 x 71 x 18 mm)
Form Factor	Slab	Slab	Slide	Slab	Slab
Platform / OS	Android	Android	(proprietary)	Android	Windows Mobile Professional
Network Bands	4G LTE: 13 CDMA: 850, 1900	WCDMA: 4 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900
Data Technology	LTE (Cat 3)	HSDPA 3.6	1xRTT	LTE (Cat 3)	EDGE
Features
Flashlight	Yes	-	-	-	-
GPS / Location	n/a	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	n/a	Yes	n/a	n/a
Hearing Aid Compatible	Yes	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	-
Multiple Languages	n/a	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	n/a	n/a	-	n/a	n/a
USB	Yes Micro-USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	n/a	Yes	n/a	n/a
Ringer ID	n/a	n/a	Yes	n/a	n/a
Voice Dialing	n/a	n/a	Yes	n/a	n/a
Customization
Custom Graphics	n/a	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	n/a
WAP / Web Browser	n/a	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	-
Text Keyboard, Hardware	-	Yes	-	-	Yes
Touch Screen	Yes Capacitive	Yes Capacitive	-	Yes Capacitive	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	-	n/a	n/a
Instant Messaging	n/a	n/a	-	n/a	n/a
MMS	n/a	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	n/a	Yes	n/a	n/a
Music
FM Radio	Yes	-	-	Yes	-
Headphone Jack (3.5mm)	Yes	Yes	Yes	Yes	-
Music Player	n/a	n/a	Yes	n/a	n/a
Photo & Video
DLNA	Yes	-	-	Yes	-
Video Calling	n/a	n/a	-	n/a	n/a
Productivity
Alarm	n/a	n/a	Yes	n/a	n/a
Calculator	n/a	n/a	Yes	n/a	n/a
Calendar	n/a	n/a	Yes	n/a	n/a
To-Do List	n/a	n/a	-	n/a	n/a
Voice Memo	n/a	n/a	Yes	n/a	n/a
Software
BREW	n/a	n/a	Yes	n/a	n/a
Games	n/a	n/a	Yes	n/a	n/a
Voice
Headset Jack (2.5 mm)	n/a	n/a	-	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	HTC ThunderBolt	Motorola Charm	Samsung Trance SCH-U490	HTC Desire 520	HP iPAQ hw6510 / hw6515
	X >	< X >	< X >	< X >	< X

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


Phone	HTC ThunderBolt	Motorola Charm	Samsung Trance SCH-U490	HTC Desire 520	HP iPAQ hw6510 / hw6515