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Phone	Siemens CT66 / C66 / C65 / C71 / C70	Huawei M835	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Cal-Comp EZ	HTC Snap S511 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.8" diag. 4 : 3	?	?	2.4" diag. 4 : 3
Display Resolution & Type	130 x 130 pixels LCD (Color)	240 x 320 pixels (~143 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	128 x 128 pixels LCD (STN)	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	600 mAh	1,200 mAh	1,490 mAh	800 mAh	1,500 mAh
Processor	?	528 MHz Qualcomm MSM7625	400 MHz Intel XScale	?	528 MHz Qualcomm S1 MSM7625
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	3 megapixel	Yes	-	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	QCIF (176 x 144)	-	CIF (352 x 288)
Front Camera	-	-	-	-	-
Weight	3 oz (85g)	3.88 oz (110g)	7.41 oz (210g)	2.47 oz (70g)	4.2 oz (119g)
Dimensions	4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm)	4.09" x 2.15" x 0.53" (104 x 55 x 13.5 mm)	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	4.04" x 1.71" x 0.63" (103 x 43 x 16 mm)	4.48" x 2.48" x 0.54" (114 x 63 x 13.7 mm)
Form Factor	Slab	Slab	Slide	Slab	Slab
Platform / OS	(proprietary)	Android	Windows Mobile Professional	(proprietary)	Windows Mobile Standard
Network Bands	GSM: 850, 1800, 1900 *	CDMA: 850, 1700, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	GPRS	EVDO rA	GPRS	1xRTT	EVDO rA
Features
GPS / Location	-	n/a	n/a	Yes	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	-	n/a
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	-	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	-	-	Yes
Alerts
Ringer Profiles	Yes	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	-	Yes
Infrared (IR)	Yes	-	Yes	-	-
USB	Yes	Yes	Yes	Yes Mini-USB	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes	-	-
Contacts
Picture ID	Yes	n/a	n/a	-	n/a
Ringer ID	Yes	n/a	n/a	-	n/a
Voice Dialing	-	n/a	n/a	-	n/a
Customization
Changeable Body Plates	Yes	-	-	-	-
Custom Graphics	Yes	n/a	n/a	-	n/a
Custom Ringtones	Yes	n/a	n/a	-	n/a
Real-Music Ringers	-	n/a	n/a	-	n/a
Data & Network
Data Tethering	-	n/a	n/a	-	n/a
WAP / Web Browser	Yes	n/a	n/a	-	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	-	n/a
Side Keys	-	Yes	Yes	-	Yes
Text Keyboard, Hardware	-	-	Yes	-	Yes
Touch Screen	-	Yes Capacitive	Yes	-	-
Memory
Memory Card Slot	-	Yes	Yes	-	Yes
Messaging
Email Client	-	n/a	n/a	-	n/a
EMS / Picture Messaging	Yes	n/a	n/a	-	n/a
Instant Messaging	-	n/a	n/a	-	n/a
MMS	Yes	n/a	n/a	-	n/a
Text Messaging Templates	Yes	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	-	-	-
Music Player	-	n/a	n/a	-	n/a
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	Yes	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	Yes *	n/a
Software
Games	Yes	n/a	n/a	-	n/a
Java (J2ME)	Yes	n/a	n/a	-	n/a
Voice
Call Screening	Yes	-	-	-	-
Headset Jack (2.5 mm)	-	n/a	n/a	Yes	n/a
Push-To-Talk	Yes *	-	-	-	-
Speaker Phone	Yes	Yes	Yes	-	Yes
	* Some versions only
	Siemens CT66 / C66 / C65 / C71 / C70	Huawei M835	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Cal-Comp EZ	HTC Snap S511 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Siemens CT66 / C66 / C65 / C71 / C70	Huawei M835	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Cal-Comp EZ	HTC Snap S511 (CDMA)