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Specifications
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Phone	Motorola V551 / V330 / V547 / V555 / V557	HTC Droid Eris	Samsung MM-A900 / SPH-A900 / Ace	Motorola Defy (2010)	BlackBerry Curve 8330
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.2" diag. 5 : 3	?	3.6" diag. 16 : 9	?
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 854 pixels (~272 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	60 Hz	?
Battery	820 mAh	1,300 mAh	?	1,540 mAh	1,150 mAh
Processor	?	528 MHz MSM7600	?	800 MHz TI OMAP3610	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	5 megapixel	1 megapixel	5 megapixel	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	CIF (352 x 288)	?	?	?
Front Camera	-	-	-	-	-
Weight	4.23 oz (120g)	4.43 oz (126g)	3.9 oz (111g)	4.16 oz (118g)	4.02 oz (114g)
Dimensions	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	4.21" x 2.32" x 0.53" (107 x 59 x 13.4 mm)	4.2" x 2.4" x 0.6" (107 x 61 x 15.2 mm)
Form Factor	Clamshell	Slab	Clamshell	Slab	Slab
Platform / OS	(proprietary)	Android	(proprietary)	Android	BlackBerry OS
Network Bands	GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	EDGE	EVDO rA	EVDO r0	HSPA 7.2	EVDO r0
Features
GPS / Location	-	n/a	Yes	n/a	n/a
Ruggedized	-	-	-	Yes	-
Accessibility
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	-	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	Yes	-	-
Ringer Profiles	Yes	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
USB	Yes	Yes Mini-USB	Yes	Yes Micro-USB	Yes Mini-USB
Wi-Fi	-	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	Yes	n/a	Yes	n/a	n/a
Ringer ID	Yes	n/a	Yes	n/a	n/a
Voice Dialing	Yes	n/a	Yes	n/a	n/a
Customization
Custom Graphics	Yes	n/a	Yes	n/a	n/a
Custom Ringtones	Yes	n/a	Yes	n/a	n/a
Real-Music Ringers	Yes	n/a	-	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	Yes	n/a	n/a
WAP / Web Browser	Yes	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	n/a	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
Messaging
Email Client	Yes	n/a	-	n/a	n/a
EMS / Picture Messaging	Yes	n/a	-	n/a	n/a
Instant Messaging	Yes	n/a	-	n/a	n/a
MMS	Yes	n/a	-	n/a	n/a
Text Messaging Templates	Yes	n/a	Yes	n/a	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	-	Yes	-	Yes	Yes
Music Player	-	n/a	Yes	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	-
Productivity
Alarm	Yes	n/a	Yes	n/a	n/a
Calculator	Yes	n/a	Yes	n/a	n/a
Calendar	Yes	n/a	Yes	n/a	n/a
To-Do List	-	n/a	Yes	n/a	n/a
Voice Memo	Yes	n/a	Yes	n/a	n/a
Software
Games	Yes	n/a	Yes	n/a	n/a
Java (J2ME)	Yes	n/a	Yes	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	Yes	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Motorola V551 / V330 / V547 / V555 / V557	HTC Droid Eris	Samsung MM-A900 / SPH-A900 / Ace	Motorola Defy (2010)	BlackBerry Curve 8330
	X >	< X >	< X >	< X >	< X

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


Phone	Motorola V551 / V330 / V547 / V555 / V557	HTC Droid Eris	Samsung MM-A900 / SPH-A900 / Ace	Motorola Defy (2010)	BlackBerry Curve 8330