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Phone	Samsung SPH-A660 / VI660	Motorola Backflip	HTC Droid Eris	Samsung MM-A900 / SPH-A900 / Ace	Samsung Vibrant (Galaxy S)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.1" diag. 5 : 3	3.2" diag. 5 : 3	?	4" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (Color)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	?	60 Hz	60 Hz	?	60 Hz
Battery	?	1,400 mAh	1,300 mAh	?	1,500 mAh
Processor	?	528 MHz Qualcomm MSM7201a	528 MHz MSM7600	?	1 GHz Samsung Hummingbird Cortex A8
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	-	5 megapixel	5 megapixel	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	CIF (352 x 288)	CIF (352 x 288)	?	720p HD
Front Camera	-	-	-	-	-
Weight	3.54 oz (100g)	4.7 oz (133g)	4.43 oz (126g)	3.9 oz (111g)	4.16 oz (118g)
Dimensions	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.25" x 2.09" x 0.6" (108 x 53 x 15.3 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)	4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm)
Form Factor	Clamshell	Clamshell	Slab	Clamshell	Slab
Platform / OS	(proprietary)	Android	Android	(proprietary)	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	HSPA 7.2	EVDO rA	EVDO r0	HSPA 7.2
Features
GPS / Location	Yes	n/a	n/a	Yes	n/a
Accessibility
Hearing Aid Compatible	-	Yes M3 (mostly compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	-
Alerts
Extra Display	-	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	-	n/a
USB	-	Yes Micro-USB	Yes Mini-USB	Yes	Yes Micro-USB
Wi-Fi	-	Yes 802.11 b,g	Yes 802.11 b,g	-	Yes
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	Yes	n/a
Voice Dialing	Yes	n/a	n/a	Yes	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	-	n/a	n/a	-	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	Yes	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	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
Instant Messaging	-	n/a	n/a	-	n/a
MMS	-	n/a	n/a	-	n/a
Text Messaging Templates	-	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	Yes	-	Yes
Music Player	-	n/a	n/a	Yes	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	Yes	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	Yes	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	Yes	n/a
Software
Games	Yes	n/a	n/a	Yes	n/a
Java (J2ME)	Yes	n/a	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	Yes	n/a
Speaker Phone	-	Yes	Yes	Yes	Yes
	Samsung SPH-A660 / VI660	Motorola Backflip	HTC Droid Eris	Samsung MM-A900 / SPH-A900 / Ace	Samsung Vibrant (Galaxy S)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-A660 / VI660	Motorola Backflip	HTC Droid Eris	Samsung MM-A900 / SPH-A900 / Ace	Samsung Vibrant (Galaxy S)