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Phone	Motorola Droid	Samsung Knack U310	Samsung Vibrant (Galaxy S)	Motorola Backflip
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	3.7" diag. 16 : 9	2.2" diag. 4 : 3	4" diag. 5 : 3	3.1" diag. 5 : 3
Display Resolution & Type	480 x 854 pixels (~268 ppi) LCD (TFT/TFD)	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	60 Hz
Battery	1,400 mAh	1,000 mAh	1,500 mAh	1,400 mAh
Processor	550 MHz TI OMAP 3430 (ARM Cortex A8)	?	1 GHz Samsung Hummingbird Cortex A8	528 MHz Qualcomm MSM7201a
RAM	?	?	?	?
Storage	? raw hardware	? raw hardware	16 GB	? raw hardware
Main Camera	5 megapixel	-	5 megapixel	5 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	WVGA / 480p	-	720p HD	CIF (352 x 288)
Front Camera	-	-	-	-
Weight	5.99 oz (170g)	3.63 oz (103g)	4.16 oz (118g)	4.7 oz (133g)
Dimensions	4.55" x 2.35" x 0.55" (116 x 60 x 14 mm)	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm)	4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm)
Form Factor	Slab	Clamshell	Slab	Clamshell
Platform / OS	Android	(proprietary)	Android	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	EVDO rA	-	HSPA 7.2	HSPA 7.2
Features
GPS / Location	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	-	-
Alerts
Extra Display	-	Yes	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes
Mobile Hotspot	n/a	-	n/a	n/a
USB	Yes Micro-USB	-	Yes Micro-USB	Yes Micro-USB
Wi-Fi	Yes 802.11 b,g	-	Yes	Yes 802.11 b,g
Contacts
Picture ID	n/a	-	n/a	n/a
Ringer ID	n/a	-	n/a	n/a
Voice Dialing	n/a	Yes	n/a	n/a
Customization
Custom Graphics	n/a	-	n/a	n/a
Custom Ringtones	n/a	-	n/a	n/a
Real-Music Ringers	n/a	-	n/a	n/a
Data & Network
External Antenna Jack	n/a	-	n/a	n/a
WAP / Web Browser	n/a	-	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	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
EMS / Picture Messaging	n/a	Yes	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	n/a
Music
Headphone Jack (3.5mm)	Yes	-	Yes	Yes
Music Player	n/a	-	n/a	n/a
Photo & Video
DLNA	-	-	Yes	-
Productivity
Alarm	n/a	Yes	n/a	n/a
Calculator	n/a	Yes	n/a	n/a
Calendar	n/a	Yes	n/a	n/a
Voice Memo	n/a	-	n/a	n/a
Software
Games	n/a	-	n/a	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes
	Motorola Droid	Samsung Knack U310	Samsung Vibrant (Galaxy S)	Motorola Backflip
	X >	< X >	< X >	< X

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


Phone	Motorola Droid	Samsung Knack U310	Samsung Vibrant (Galaxy S)	Motorola Backflip