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Phone	Samsung SGH-X640	ZTE Grand X	Nokia N75	Samsung Saga i770
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	?	5" diag. 16 : 9	2.4" diag. 4 : 3	2.6" diag. 1 : 1
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	540 x 960 pixels (~220 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	320 x 320 pixels (~177 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?
Battery	800 mAh	2,300 mAh	800 mAh	1,300 mAh
Processor	?	1.2 GHz Qualcomm Snapdragon 200 MSM8210	?	384 MHz MSM7500
RAM	?	1 GB	?	?
Storage	? raw hardware	4 GB	? raw hardware	? raw hardware
Main Camera	Yes	5 megapixel	2 megapixel	2 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	-	720p HD	CIF (352 x 288)	QVGA (320 x 240)
Front Camera	-	1 megapixel	-	-
Weight	3 oz (85g)	6.06 oz (172g)	4.36 oz (124g)	4.59 oz (130g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	5.7" x 2.87" x 0.37" (145 x 73 x 9.4 mm)	3.74" x 2.05" x 0.8" (95 x 52 x 20.3 mm)	4.88" x 2.44" x 0.53" (124 x 62 x 13.5 mm)
Form Factor	Clamshell	Slab	Clamshell	Slab
Platform / OS	(proprietary)	Android	S60 (Symbian)	Windows Mobile Professional
Network Bands	GSM: 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	GPRS	HSPA+ 21	WCDMA (UMTS)	EVDO rA
Features
GPS / Location	-	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4 (very compatible)
Multiple Languages	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	-
Ringer Profiles	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes
Infrared (IR)	-	-	Yes	-
USB	-	Yes Micro-USB	Yes	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	-	Yes 802.11 b,g
Contacts
Picture ID	Yes	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a
Voice Dialing	-	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a
Real-Music Ringers	-	n/a	n/a	n/a
Data & Network
Data Tethering	-	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes
Stylus	-	-	-	Yes
Text Keyboard, Hardware	-	-	-	Yes
Touch Screen	-	Yes Capacitive	-	Yes Resistive
Memory
Memory Card Slot	-	Yes	Yes	Yes
Messaging
Email Client	-	n/a	n/a	n/a
EMS / Picture Messaging	Yes	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a
MMS	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a
Music
FM Radio	-	-	Yes	-
Headphone Jack (3.5mm)	-	Yes	-	-
Music Player	-	n/a	n/a	n/a
Stereo Speakers	-	-	Yes	-
Productivity
Alarm	Yes	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a
To-Do List	Yes	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a
Software
Games	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	n/a	n/a	n/a
Voice
HD Voice	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes
	Samsung SGH-X640	ZTE Grand X	Nokia N75	Samsung Saga i770
	X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	ZTE Grand X	Nokia N75	Samsung Saga i770