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Phone	Samsung SGH-E640	ZTE Groove	Ericsson T66	Motorola V551 / V330 / V547 / V555 / V557	Nokia E66
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.2" diag. 5 : 3	?	?	2.4" diag. 4 : 3
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	?	176 x 220 pixels LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	800 mAh	1,500 mAh	?	820 mAh	1,000 mAh
Processor	?	800 MHz Qualcomm MSM7627A	?	?	?
RAM	?	512 MB	?	?	?
Storage	? raw hardware	1 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	1 megapixel	3 megapixel	-	Yes	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	720p HD	-	?	QVGA (320 x 240)
Front Camera	-	Yes	-	-	-
Weight	3.17 oz (90g)	4.5 oz (128g)	2.08 oz (59g)	4.23 oz (120g)	4.27 oz (121g)
Dimensions	3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm)	4.67" x 2.46" x 0.55" (119 x 62 x 14 mm)	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	4.21" x 1.93" x 0.51" (107 x 49 x 13 mm)
Form Factor	Clamshell	Slab	Slab	Clamshell	Slide
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	S60 (Symbian)
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1700, 1900	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	GPRS	EVDO rA	-	EDGE	HSDPA 3.6
Features
GPS / Location	-	n/a	-	-	n/a
Accessibility
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	-	-	-	Yes	-
Alerts
Extra Display	Yes	-	-	Yes	-
Ringer Profiles	-	-	Yes	Yes	Yes
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	-	Yes Classic Audio	Yes Classic Audio
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	-	n/a	-	-	n/a
USB	Yes	Yes Micro-USB	-	Yes	Yes Micro-USB
Wi-Fi	-	Yes	-	-	Yes 802.11 b,g
Contacts
Picture ID	Yes	n/a	-	Yes	n/a
Ringer ID	Yes	n/a	-	Yes	n/a
Voice Dialing	-	n/a	-	Yes	n/a
Customization
Custom Graphics	Yes	n/a	Yes	Yes	n/a
Custom Ringtones	Yes	n/a	Yes	Yes	n/a
Real-Music Ringers	Yes	n/a	-	Yes	n/a
Data & Network
Data Tethering	-	n/a	-	Yes	n/a
WAP / Web Browser	Yes	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	Yes	-	-	-
Memory
Memory Card Slot	-	Yes	-	-	Yes
Messaging
Email Client	Yes	n/a	-	Yes	n/a
EMS / Picture Messaging	Yes	n/a	Yes	Yes	n/a
Instant Messaging	-	n/a	-	Yes	n/a
MMS	Yes	n/a	-	Yes	n/a
Text Messaging Templates	Yes	n/a	Yes	Yes	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	Yes	-	-	-
Music Player	Yes	n/a	-	-	n/a
Photo & Video
Video Calling	-	n/a	-	-	n/a
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	Yes	n/a	Yes	-	n/a
Voice Memo	Yes	n/a	-	Yes	n/a
Software
Games	Yes	n/a	Yes	Yes	n/a
Java (J2ME)	Yes	n/a	-	Yes	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	-	Yes	n/a
Speaker Phone	Yes	Yes	-	Yes	Yes
	* Some versions only
	Samsung SGH-E640	ZTE Groove	Ericsson T66	Motorola V551 / V330 / V547 / V555 / V557	Nokia E66
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-E640	ZTE Groove	Ericsson T66	Motorola V551 / V330 / V547 / V555 / V557	Nokia E66