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Phone	Palm Treo 650 (CDMA)	HTC Desire 520	Samsung Trance SCH-U490	Sony Ericsson Xperia X10 mini pro (2010)	Samsung Seek
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.5" diag. 16 : 9	2.1" diag. 4 : 3	2.6" diag. 4 : 3	2.6" diag. 4 : 3
Display Resolution & Type	320 x 320 pixels LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	60 Hz	?
Battery	?	2,000 mAh	?	930 mAh	1,000 mAh
Processor	312 MHz Intel XScale PXA270	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	?	600 MHz Qualcomm S1 MSM7227	?
RAM	?	1 GB	?	?	?
Storage	? raw hardware	8 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	8 megapixel	1 megapixel	5 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	720p HD	-	VGA (640 x 480)	-
Front Camera	-	2 megapixel	-	-	-
Weight	6.3 oz (179g)	4.9 oz (139g)	3.53 oz (100g)	4.2 oz (119g)	3.9 oz (111g)
Dimensions	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)	5.5" x 2.71" x 0.36" (140 x 69 x 9 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)	3.5" x 2" x 0.7" (89 x 51 x 17.8 mm)	4.1" x 2" x 0.6" (104 x 51 x 15.2 mm)
Form Factor	Slab	Slab	Slide	Slide	Slide
Platform / OS	Palm OS	Android	(proprietary)	Android	(proprietary)
Network Bands	CDMA: 850, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	1xRTT	LTE (Cat 3)	1xRTT	HSPA 7.2	1xRTT
Features
GPS / Location	n/a	n/a	Yes	n/a	Yes
Accessibility
Adjustable Text Size	n/a	n/a	Yes	n/a	-
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M4 (very compatible)
Multiple Languages	n/a	n/a	Yes	n/a	Yes
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	n/a	-	n/a	-
USB	-	Yes Micro-USB	Yes	Yes Micro-USB	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	-	Yes	-
Contacts
Picture ID	n/a	n/a	Yes	n/a	Yes
Ringer ID	n/a	n/a	Yes	n/a	Yes
Voice Dialing	n/a	n/a	Yes	n/a	Yes
Customization
Custom Graphics	n/a	n/a	Yes	n/a	Yes
Custom Ringtones	n/a	n/a	Yes	n/a	Yes
Real-Music Ringers	n/a	n/a	Yes	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	Yes
WAP / Web Browser	n/a	n/a	Yes	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	-
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	Yes	Yes
Touch Screen	Yes	Yes Capacitive	-	Yes Capacitive	Yes Resistive
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	-	n/a	Yes
Instant Messaging	n/a	n/a	-	n/a	Yes
MMS	n/a	n/a	Yes	n/a	Yes
Text Messaging Templates	n/a	n/a	Yes	n/a	-
Music
FM Radio	-	Yes	-	Yes	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	Yes
Music Player	n/a	n/a	Yes	n/a	Yes
Photo & Video
DLNA	-	Yes	-	-	-
Productivity
Alarm	n/a	n/a	Yes	n/a	Yes
Calculator	n/a	n/a	Yes	n/a	Yes
Calendar	n/a	n/a	Yes	n/a	Yes
To-Do List	n/a	n/a	-	n/a	-
Voice Memo	n/a	n/a	Yes	n/a	-
Software
BREW	n/a	n/a	Yes	n/a	-
Games	n/a	n/a	Yes	n/a	Yes
Java (J2ME)	n/a	n/a	-	n/a	Yes
Voice
Headset Jack (2.5 mm)	n/a	n/a	-	n/a	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Palm Treo 650 (CDMA)	HTC Desire 520	Samsung Trance SCH-U490	Sony Ericsson Xperia X10 mini pro (2010)	Samsung Seek
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Treo 650 (CDMA)	HTC Desire 520	Samsung Trance SCH-U490	Sony Ericsson Xperia X10 mini pro (2010)	Samsung Seek