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Phone	Samsung SGH-X640	Sanyo Vero	HTC Shadow	Samsung Wafer R510	HTC Droid Eris
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.4" diag. 4 : 3	2.6" diag. 4 : 3	1.9" diag. 4 : 3	3.2" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	220 x 176 pixels (~148 ppi) LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	800 mAh	840 mAh	920 mAh	800 mAh	1,300 mAh
Processor	?	?	200 MHz OMAP 850	?	528 MHz MSM7600
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	1 megapixel	2 megapixel	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	?	?	CIF (352 x 288)
Front Camera	-	-	-	-	-
Weight	3 oz (85g)	3.4 oz (96g)	5.29 oz (150g)	2.47 oz (70g)	4.43 oz (126g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.78" x 2.05" x 0.63" (96 x 52 x 16.1 mm)	4.06" x 2.09" x 0.59" (103 x 53 x 15 mm)	4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)
Form Factor	Clamshell	Clamshell	Slide	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Windows Mobile Standard	(proprietary)	Android
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	GPRS	1xRTT	EDGE	EVDO r0	EVDO rA
Features
GPS / Location	-	Yes	n/a	Yes	n/a
Accessibility
Adjustable Text Size	-	Yes	n/a	-	n/a
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	-	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
USB	-	Yes Micro-USB	Yes Mini-USB	-	Yes Mini-USB
Wi-Fi	-	-	Yes 802.11 b,g	-	Yes 802.11 b,g
Contacts
Picture ID	Yes	Yes	n/a	Yes	n/a
Ringer ID	Yes	Yes	n/a	-	n/a
Voice Dialing	-	Yes	n/a	Yes	n/a
Customization
Custom Graphics	Yes	Yes	n/a	Yes	n/a
Custom Ringtones	Yes	Yes	n/a	Yes	n/a
Real-Music Ringers	-	-	n/a	-	n/a
Data & Network
Data Tethering	-	Yes	n/a	-	n/a
WAP / Web Browser	Yes	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	-	-	-	-	Yes Capacitive
Memory
Memory Card Slot	-	-	Yes	Yes	Yes
Messaging
Email Client	-	-	n/a	-	n/a
EMS / Picture Messaging	Yes	Yes	n/a	-	n/a
Instant Messaging	-	-	n/a	-	n/a
MMS	Yes	-	n/a	Yes	n/a
Text Messaging Templates	Yes	Yes	n/a	-	n/a
Music
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	-	-	n/a	Yes	n/a
Stereo Speakers	-	-	-	Yes	-
Productivity
Alarm	Yes	Yes	n/a	Yes	n/a
Calculator	Yes	Yes	n/a	Yes	n/a
Calendar	Yes	Yes	n/a	Yes	n/a
To-Do List	Yes	Yes	n/a	-	n/a
Voice Memo	Yes	Yes	n/a	Yes	n/a
Software
BREW	-	-	n/a	Yes	n/a
Games	Yes	Yes	n/a	Yes	n/a
Java (J2ME)	Yes	Yes	n/a	-	n/a
Voice
Headset Jack (2.5 mm)	Yes	Yes	n/a	-	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SGH-X640	Sanyo Vero	HTC Shadow	Samsung Wafer R510	HTC Droid Eris
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Sanyo Vero	HTC Shadow	Samsung Wafer R510	HTC Droid Eris