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Specifications
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Phone	Motorola V551 / V330 / V547 / V555 / V557	Pantech Duo C810	Samsung DoubleTime	Motorola Charm	Samsung Nexus S 4G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.2" diag. 4 : 3	3.2" diag. 5 : 3	2.8" diag. 4 : 3	4" diag. 5 : 3
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	?	?	60 Hz	60 Hz	60 Hz
Battery	820 mAh	1,320 mAh	1,200 mAh	1,170 mAh	1,500 mAh
Processor	?	ARM 920t PXA27x	600 MHz Qualcomm	720 MHz TI OMAP3410	1 GHz Samsung Hummingbird Cortex A8
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	Yes	1 megapixel	3 megapixel	3 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QVGA (320 x 240)	QVGA (320 x 240)	?	WVGA / 480p
Front Camera	-	-	-	-	Yes
Weight	4.23 oz (120g)	3.88 oz (110g)	5.22 oz (148g)	3.88 oz (110g)	4.62 oz (131g)
Dimensions	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)	4.45" x 2.44" x 0.59" (113 x 62 x 15 mm)	3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm)	4.88" x 2.48" x 0.44" (124 x 63 x 11.2 mm)
Form Factor	Clamshell	Slide	Clamshell	Slab	Slab
Platform / OS	(proprietary)	Windows Mobile Standard	Android	Android	Android
Network Bands	GSM: 850, 900, 1800, 1900 *	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 4 GSM: 850, 900, 1800, 1900 *	4G WiMAX: 41 CDMA: 850, 1900
Data Technology	EDGE	HSDPA 1.8	HSPA 7.2	HSDPA 3.6	WiMAX
Features
GPS / Location	-	n/a	n/a	n/a	n/a
Accessibility
Hearing Aid Compatible	-	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4 (very compatible)
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	-
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	Yes	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	n/a	n/a
NFC	-	-	-	-	Yes
USB	Yes	Yes	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	Yes	n/a	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	Yes	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	Yes	Yes	-
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	Yes	-
Messaging
Email Client	Yes	n/a	n/a	n/a	n/a
EMS / Picture Messaging	Yes	n/a	n/a	n/a	n/a
Instant Messaging	Yes	n/a	n/a	n/a	n/a
MMS	Yes	n/a	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	-	n/a	n/a	n/a	n/a
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	-	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
Games	Yes	n/a	n/a	n/a	n/a
Java (J2ME)	Yes	n/a	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Motorola V551 / V330 / V547 / V555 / V557	Pantech Duo C810	Samsung DoubleTime	Motorola Charm	Samsung Nexus S 4G
	X >	< X >	< X >	< X >	< X

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


Phone	Motorola V551 / V330 / V547 / V555 / V557	Pantech Duo C810	Samsung DoubleTime	Motorola Charm	Samsung Nexus S 4G