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Phone	HTC Droid Eris	HTC SPV e100 / 7070 (Tanager)	Apple iPhone 4 (CDMA)	ZTE Prelude / Avail 2	Motorola V551 / V330 / V547 / V555 / V557
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.2" diag. 5 : 3	?	3.5" diag. 5 : 3	3.5" diag. 5 : 3	?
Display Resolution & Type	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	60 Hz	?
Battery	1,300 mAh	1,000 mAh	?	1,500 mAh	820 mAh
Processor	528 MHz MSM7600	120 MHz OMAP	?	1 GHz Qualcomm Snapdragon MSM7225A	?
RAM	?	?	?	512 MB	?
Storage	? raw hardware	? raw hardware	8 GB *	4 GB	? raw hardware
Main Camera	5 megapixel	-	5 megapixel	2 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	CIF (352 x 288)	-	720p HD	VGA (640 x 480)	?
Front Camera	-	-	Yes	-	-
Weight	4.43 oz (126g)	4.23 oz (120g)	4.8 oz (136g)	4.4 oz (125g)	4.23 oz (120g)
Dimensions	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	4.72" x 1.97" x 0.91" (120 x 50 x 23.1 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)
Form Factor	Slab	Slab	Slab	Slab	Clamshell
Platform / OS	Android	Windows Mobile Standard	iOS	Android	(proprietary)
Network Bands	CDMA: 850, 1900	GSM: 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 1900	GSM: 850, 900, 1800, 1900 *
Data Technology	EVDO rA	GPRS	EVDO rA	HSPA 7.2	EDGE
Features
GPS / Location	n/a	n/a	n/a	n/a	-
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 M3, T4 (very tele-coil compatible)	-
Multiple Languages	n/a	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	-	-	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	Yes	-	-	Yes
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	n/a	n/a	n/a	n/a	-
USB	Yes Mini-USB	Yes	Yes	Yes	Yes
Wi-Fi	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
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
Touch Screen	Yes Capacitive	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	Yes	Yes	-	Yes	-
Messaging
Email Client	n/a	n/a	n/a	n/a	Yes
EMS / Picture Messaging	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	-
Photo & Video
TV Output	-	-	Yes	-	-
Video Calling	n/a	n/a	n/a	n/a	-
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
Games	n/a	n/a	n/a	n/a	Yes
Java (J2ME)	n/a	n/a	n/a	n/a	Yes
Voice
Headset Jack (2.5 mm)	n/a	n/a	n/a	n/a	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	HTC Droid Eris	HTC SPV e100 / 7070 (Tanager)	Apple iPhone 4 (CDMA)	ZTE Prelude / Avail 2	Motorola V551 / V330 / V547 / V555 / V557
	X >	< X >	< X >	< X >	< X

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


Phone	HTC Droid Eris	HTC SPV e100 / 7070 (Tanager)	Apple iPhone 4 (CDMA)	ZTE Prelude / Avail 2	Motorola V551 / V330 / V547 / V555 / V557