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Specifications
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Phone	Samsung Vibrant (Galaxy S)	Samsung SGH-A727	HTC G2	Motorola Defy (2010)	Samsung SGH-A157
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4" diag. 5 : 3	?	3.7" diag. 5 : 3	3.6" diag. 16 : 9	1.8" diag. 4 : 3
Display Resolution & Type	480 x 800 pixels (~233 ppi) AMOLED	220 x 176 pixels LCD (TFT/TFD)	480 x 800 pixels (~252 ppi) LCD (TFT/TFD)	480 x 854 pixels (~272 ppi) LCD (TFT/TFD)	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	60 Hz	?
Battery	1,500 mAh	?	1,300 mAh	1,540 mAh	800 mAh
Processor	1 GHz Samsung Hummingbird Cortex A8	?	800 MHz Qualcomm S2 MSM7230	800 MHz TI OMAP3610	?
RAM	?	?	?	?	?
Storage	16 GB	? raw hardware	? raw hardware	? raw hardware	256 MB
Main Camera	5 megapixel	1 megapixel	5 megapixel	5 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	QCIF (176 x 144)	720p HD	?	-
Front Camera	-	-	-	-	-
Weight	4.16 oz (118g)	2.82 oz (80g)	6.5 oz (184g)	4.16 oz (118g)	2.99 oz (85g)
Dimensions	4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm)	4.51" x 2.01" x 0.35" (115 x 51 x 8.9 mm)	4.68" x 2.37" x 0.55" (119 x 60 x 14 mm)	4.21" x 2.32" x 0.53" (107 x 59 x 13.4 mm)	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)
Form Factor	Slab	Slab	Slab	Slab	Clamshell
Platform / OS	Android	(proprietary)	Android	Android	(proprietary)
Network Bands	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	WCDMA: 1, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSPA 7.2	HSDPA 1.8	HSPA 14.4	HSPA 7.2	?
Features
GPS / Location	n/a	-	n/a	n/a	Yes
Ruggedized	-	-	-	Yes	-
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a	Yes
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3 (mostly compatible)	-	Yes M4 (very compatible)
Multiple Languages	n/a	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	-	Yes	-	Yes	Yes
Alerts
Ringer Profiles	-	Yes	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	-
Mobile Hotspot	n/a	-	n/a	n/a	-
USB	Yes Micro-USB	Yes	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	Yes	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	Yes	n/a	n/a	Yes
Ringer ID	n/a	Yes	n/a	n/a	Yes
Voice Dialing	n/a	-	n/a	n/a	-
Customization
Custom Graphics	n/a	Yes	n/a	n/a	Yes
Custom Ringtones	n/a	Yes	n/a	n/a	Yes
Real-Music Ringers	n/a	Yes	n/a	n/a	Yes
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	-
WAP / Web Browser	n/a	Yes	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	-
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	Yes Capacitive	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	-
Messaging
Email Client	n/a	Yes	n/a	n/a	-
Instant Messaging	n/a	Yes	n/a	n/a	-
MMS	n/a	Yes	n/a	n/a	Yes
Text Messaging Templates	n/a	Yes	n/a	n/a	Yes
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	-
Music Player	n/a	Yes	n/a	n/a	-
Photo & Video
DLNA	Yes	-	-	Yes	-
Productivity
Alarm	n/a	Yes	n/a	n/a	Yes
Calculator	n/a	Yes	n/a	n/a	Yes
Calendar	n/a	Yes	n/a	n/a	Yes
To-Do List	n/a	Yes	n/a	n/a	Yes
Voice Memo	n/a	Yes	n/a	n/a	Yes
Software
Games	n/a	Yes	n/a	n/a	-
Java (J2ME)	n/a	Yes	n/a	n/a	-
Voice
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung Vibrant (Galaxy S)	Samsung SGH-A727	HTC G2	Motorola Defy (2010)	Samsung SGH-A157
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Vibrant (Galaxy S)	Samsung SGH-A727	HTC G2	Motorola Defy (2010)	Samsung SGH-A157