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Phone	ZTE Z431 / Altair	HTC Imagio	Motorola Droid	Motorola Defy (2010)	HTC Touch Pro2 (GSM) / Tilt 2
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	3.6" diag. 5 : 3	3.7" diag. 16 : 9	3.6" diag. 16 : 9	3.6" diag. 5 : 3
Display Resolution & Type	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	480 x 854 pixels (~268 ppi) LCD (TFT/TFD)	480 x 854 pixels (~272 ppi) LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	?
Battery	1,000 mAh	1,500 mAh	1,400 mAh	1,540 mAh	1,500 mAh
Processor	?	528 MHz MSM7600	550 MHz TI OMAP 3430 (ARM Cortex A8)	800 MHz TI OMAP3610	528 MHz Qualcomm MSM7200A
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	2 megapixel	5 megapixel	5 megapixel	5 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	VGA (640 x 480)	WVGA / 480p	?	?
Front Camera	-	-	-	-	-
Weight	3.52 oz (100g)	5.25 oz (149g)	5.99 oz (170g)	4.16 oz (118g)	6.61 oz (187g)
Dimensions	4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm)	4.65" x 2.43" x 0.55" (118 x 62 x 14 mm)	4.55" x 2.35" x 0.55" (116 x 60 x 14 mm)	4.21" x 2.32" x 0.53" (107 x 59 x 13.4 mm)	4.59" x 2.36" x 0.68" (117 x 60 x 17.3 mm)
Form Factor	Slab	Slab	Slab	Slab	Slab
Platform / OS	(proprietary)	Windows Mobile Professional	Android	Android	Windows Mobile Professional
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 *
Data Technology	?	EVDO rA	EVDO rA	HSPA 7.2	HSPA 7.2
Features
GPS / Location	Yes	n/a	n/a	n/a	n/a
Ruggedized	-	-	-	Yes	-
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	-
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	-	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
USB	Yes Micro-USB	Yes Mini-USB	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	-	Yes 802.11 b,g	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	-	n/a	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	Yes	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	n/a
External Antenna Jack	-	n/a	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Stylus	-	Yes	-	-	Yes
Text Keyboard, Hardware	Yes	-	Yes	-	Yes
Touch Screen	-	Yes Resistive	Yes Capacitive	Yes Capacitive	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	Yes	n/a	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a	n/a
MMS	Yes	n/a	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a	n/a
Music
FM Radio	-	Yes	-	Yes	-
Headphone Jack (3.5mm)	Yes	Yes	Yes	Yes	-
Music Player	Yes	n/a	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	-
TV Output	-	Yes	-	-	Yes
Video Calling	-	n/a	n/a	n/a	n/a
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	-	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
BREW	Yes	n/a	n/a	n/a	n/a
Games	Yes	n/a	n/a	n/a	n/a
Java (J2ME)	-	n/a	n/a	n/a	n/a
Voice
Push-To-Talk	-	-	-	-	Yes *
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Z431 / Altair	HTC Imagio	Motorola Droid	Motorola Defy (2010)	HTC Touch Pro2 (GSM) / Tilt 2
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Z431 / Altair	HTC Imagio	Motorola Droid	Motorola Defy (2010)	HTC Touch Pro2 (GSM) / Tilt 2