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Phone	HTC Droid Eris	ZTE Overture 2 / Maven	HP iPAQ Glisten	BlackBerry 8820	Casio G'zOne Rock
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.2" diag. 5 : 3	4.5" diag. 16 : 9	2.5" diag. 4 : 3	?	2.1" diag. 4 : 3
Display Resolution & Type	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	320 x 240 pixels (~160 ppi) AMOLED	320 x 240 pixels LCD (TFT/TFD)	240 x 320 pixels (~190 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	?	?	?
Battery	1,300 mAh	2,100 mAh	1,590 mAh	1,400 mAh	1,150 mAh
Processor	528 MHz MSM7600	1.2 GHz Qualcomm Snapdragon 410 (MSM8916)	528 MHz Qualcomm MSM7200a (ARM11)	?	?
RAM	?	1 GB	?	?	?
Storage	? raw hardware	8 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	5 megapixel	3 megapixel	-	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	CIF (352 x 288)	720p HD	QVGA (320 x 240)	-	?
Front Camera	-	Yes	-	-	-
Weight	4.43 oz (126g)	4.71 oz (134g)	5.29 oz (150g)	4.73 oz (134g)	4.4 oz (125g)
Dimensions	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	5.31" x 2.59" x 0.39" (135 x 66 x 9.9 mm)	4.44" x 2.47" x 0.53" (113 x 63 x 13.4 mm)	4.49" x 2.6" x 0.55" (114 x 66 x 14 mm)	4.1" x 2" x 0.9" (104 x 51 x 22.9 mm)
Form Factor	Slab	Slab	Slab	Slab	Clamshell
Platform / OS	Android	Android	Windows Mobile Professional	BlackBerry OS	(proprietary)
Network Bands	CDMA: 850, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	EVDO rA	LTE (Cat 4)	HSDPA 3.6	EDGE	EVDO rA
Features
Flashlight	-	Yes	-	-	Yes
GPS / Location	n/a	n/a	n/a	n/a	Yes
Ruggedized	-	-	-	-	Yes
Water-Resistant	-	-	-	-	Yes
Accessibility
Adjustable Text Size	n/a	n/a	n/a	n/a	-
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes * M4, T4 (very tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
USB	Yes Mini-USB	Yes Micro-USB	Yes Micro-USB	Yes Mini-USB	Yes
Wi-Fi	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	Yes	-
Contacts
Picture ID	n/a	n/a	n/a	n/a	Yes
Ringer ID	n/a	n/a	n/a	n/a	Yes
Voice Dialing	n/a	n/a	n/a	n/a	Yes
Customization
Custom Graphics	n/a	n/a	n/a	n/a	Yes
Custom Ringtones	n/a	n/a	n/a	n/a	Yes
Real-Music Ringers	n/a	n/a	n/a	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	n/a	n/a	Yes
WAP / Web Browser	n/a	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Stylus	-	-	Yes	-	-
Text Keyboard, Hardware	-	-	Yes	Yes	-
Touch Screen	Yes Capacitive	Yes Capacitive	Yes Resistive	-	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	n/a	n/a	Yes
Instant Messaging	n/a	n/a	n/a	n/a	Yes
MMS	n/a	n/a	n/a	n/a	Yes
Text Messaging Templates	n/a	n/a	n/a	n/a	Yes
Music
Headphone Jack (3.5mm)	Yes	Yes	Yes	-	-
Music Player	n/a	n/a	n/a	n/a	Yes
Productivity
Alarm	n/a	n/a	n/a	n/a	Yes
Calculator	n/a	n/a	n/a	n/a	Yes
Calendar	n/a	n/a	n/a	n/a	Yes
To-Do List	n/a	n/a	n/a	n/a	-
Voice Memo	n/a	n/a	n/a	n/a	Yes
Software
BREW	n/a	n/a	n/a	n/a	Yes
Games	n/a	n/a	n/a	n/a	Yes
Java (J2ME)	n/a	n/a	n/a	n/a	-
Voice
Headset Jack (2.5 mm)	n/a	n/a	n/a	n/a	Yes
Push-To-Talk	-	-	-	Yes *	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	HTC Droid Eris	ZTE Overture 2 / Maven	HP iPAQ Glisten	BlackBerry 8820	Casio G'zOne Rock
	X >	< X >	< X >	< X >	< X

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


Phone	HTC Droid Eris	ZTE Overture 2 / Maven	HP iPAQ Glisten	BlackBerry 8820	Casio G'zOne Rock