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Phone	Samsung SPH-A660 / VI660	HTC Imagio	Samsung SGH-A157	HTC Touch Pro2 (CDMA)	HTC Dash / S620 / S621 (Excalibur)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.6" diag. 5 : 3	1.8" diag. 4 : 3	3.6" diag. 5 : 3	?
Display Resolution & Type	128 x 160 pixels LCD (Color)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	?	1,500 mAh	800 mAh	1,500 mAh	960 mAh
Processor	?	528 MHz MSM7600	?	528 MHz MSM7600	200 MHz OMAP 850
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	256 MB	? raw hardware	? raw hardware
Main Camera	-	5 megapixel	-	3 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	VGA (640 x 480)	-	?	?
Front Camera	-	-	-	-	-
Weight	3.54 oz (100g)	5.25 oz (149g)	2.99 oz (85g)	6.35 oz (180g)	4.23 oz (120g)
Dimensions	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.65" x 2.43" x 0.55" (118 x 62 x 14 mm)	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm)	4.39" x 2.46" x 0.51" (112 x 62 x 13 mm)
Form Factor	Clamshell	Slab	Clamshell	Slab	Slab
Platform / OS	(proprietary)	Windows Mobile Professional	(proprietary)	Windows Mobile Professional	Windows Mobile Standard
Network Bands	CDMA: 850, 1900 AMPS: 850	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	EVDO rA	?	EVDO rA	EDGE
Features
GPS / Location	Yes	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	Yes	n/a	n/a
Hearing Aid Compatible	-	Yes M3, T4 (very tele-coil compatible)	Yes M4 (very compatible)	Yes M4, T3 (mostly tele-coil compatible)	-
Multiple Languages	Yes	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	-	-	Yes	-	Yes
Connectivity
Bluetooth	-	Yes	-	Yes	Yes
USB	-	Yes Mini-USB	Yes Micro-USB	Yes	Yes
Wi-Fi	-	Yes 802.11 b,g	-	Yes	Yes 802.11 b,g
Contacts
Picture ID	Yes	n/a	Yes	n/a	n/a
Ringer ID	Yes	n/a	Yes	n/a	n/a
Voice Dialing	Yes	n/a	-	n/a	n/a
Customization
Custom Graphics	Yes	n/a	Yes	n/a	n/a
Custom Ringtones	Yes	n/a	Yes	n/a	n/a
Real-Music Ringers	-	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	-	n/a	n/a
External Antenna Jack	-	n/a	-	n/a	n/a
WAP / Web Browser	Yes	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	-	Yes	Yes
Stylus	-	Yes	-	Yes	-
Text Keyboard, Hardware	-	-	-	Yes	Yes
Touch Screen	-	Yes Resistive	-	Yes Resistive	-
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	Yes	n/a	n/a
Text Messaging Templates	-	n/a	Yes	n/a	n/a
Music
FM Radio	-	Yes	-	-	-
Headphone Jack (3.5mm)	-	Yes	-	Yes	-
Music Player	-	n/a	-	n/a	n/a
Photo & Video
TV Output	-	Yes	-	Yes	-
Productivity
Alarm	Yes	n/a	Yes	n/a	n/a
Calculator	Yes	n/a	Yes	n/a	n/a
Calendar	Yes	n/a	Yes	n/a	n/a
To-Do List	Yes	n/a	Yes	n/a	n/a
Voice Memo	Yes	n/a	Yes	n/a	n/a
Software
Games	Yes	n/a	-	n/a	n/a
Java (J2ME)	Yes	n/a	-	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	-	n/a	n/a
Speaker Phone	-	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SPH-A660 / VI660	HTC Imagio	Samsung SGH-A157	HTC Touch Pro2 (CDMA)	HTC Dash / S620 / S621 (Excalibur)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-A660 / VI660	HTC Imagio	Samsung SGH-A157	HTC Touch Pro2 (CDMA)	HTC Dash / S620 / S621 (Excalibur)