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Phone	HTC G2	Ericsson T66	ZTE Z331	Samsung SGH-T819	HTC Droid Eris
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.7" diag. 5 : 3	?	2.4" diag. 4 : 3	?	3.2" diag. 5 : 3
Display Resolution & Type	480 x 800 pixels (~252 ppi) LCD (TFT/TFD)	?	176 x 220 pixels (~117 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	1,300 mAh	?	950 mAh	?	1,300 mAh
Processor	800 MHz Qualcomm S2 MSM7230	?	?	?	528 MHz MSM7600
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	-	3 megapixel	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	QCIF (176 x 144)	QCIF (176 x 144)	CIF (352 x 288)
Front Camera	-	-	-	-	-
Weight	6.5 oz (184g)	2.08 oz (59g)	4 oz (113g)	3.46 oz (98g)	4.43 oz (126g)
Dimensions	4.68" x 2.37" x 0.55" (119 x 60 x 14 mm)	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm)	3.96" x 2.03" x 0.55" (101 x 52 x 14 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)
Form Factor	Slab	Slab	Clamshell	Slide	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 4 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	HSPA 14.4	-	HSDPA 3.6	WCDMA (UMTS)	EVDO rA
Features
GPS / Location	n/a	-	Yes	-	n/a
Accessibility
Hearing Aid Compatible	Yes M3 (mostly compatible)	-	Yes M3, T4 (very tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	-	-	Yes	-	Yes
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	Yes	Yes	Yes	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Mobile Hotspot	n/a	-	-	-	n/a
USB	Yes	-	Yes Micro-USB	Yes	Yes Mini-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	Yes 802.11 b,g
Contacts
Picture ID	n/a	-	Yes	Yes	n/a
Ringer ID	n/a	-	Yes	Yes	n/a
Voice Dialing	n/a	-	-	Yes	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	-	Yes	Yes	n/a
Data & Network
Data Tethering	n/a	-	Yes	Yes	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	Yes Capacitive	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	n/a	-	Yes	-	n/a
EMS / Picture Messaging	n/a	Yes	-	Yes	n/a
Instant Messaging	n/a	-	Yes	Yes	n/a
MMS	n/a	-	Yes	Yes	n/a
Text Messaging Templates	n/a	Yes	Yes	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	-	Yes	Yes	n/a
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	Yes	-	Yes	n/a
Voice Memo	n/a	-	Yes	-	n/a
Software
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	-	Yes	Yes	n/a
Voice
Speaker Phone	Yes	-	Yes	Yes	Yes
	HTC G2	Ericsson T66	ZTE Z331	Samsung SGH-T819	HTC Droid Eris
	X >	< X >	< X >	< X >	< X

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


Phone	HTC G2	Ericsson T66	ZTE Z331	Samsung SGH-T819	HTC Droid Eris