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Phone	Samsung SGH-X640	Motorola KRZR K1	Nokia Lumia 900	Nokia 3650	Palm Treo 600 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	4.3" diag. 5 : 3	2.1" diag. 1 : 1	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED	176 x 208 pixels (~130 ppi) LCD (TFT/TFD)	160 x 160 pixels LCD (Color)
Display Refresh	?	?	?	?	?
Battery	800 mAh	780 mAh	1,830 mAh	850 mAh	?
Processor	?	?	1.4 GHz Qualcomm S2 APQ8055	?	?
RAM	?	?	512 MB	?	?
Storage	? raw hardware	? raw hardware	16 GB	? raw hardware	? raw hardware
Main Camera	Yes	2 megapixel	8 megapixel	Yes	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	720p HD	?	-
Front Camera	-	-	1 megapixel	-	-
Weight	3 oz (85g)	3.6 oz (102g)	5.6 oz (159g)	4.59 oz (130g)	6.2 oz (176g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.05" x 1.65" x 0.63" (103 x 42 x 16 mm)	5.03" x 2.7" x 0.45" (128 x 69 x 11.4 mm)	5.1" x 2.24" x 1" (130 x 57 x 25.4 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Windows	S60 (Symbian)	Palm OS
Network Bands	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 4, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 *	GSM: 900, 1800, 1900	CDMA: 850, 1900
Data Technology	GPRS	EDGE	LTE (Cat 3)	GPRS	1xRTT
Features
GPS / Location	-	-	n/a	n/a	n/a
Accessibility
Hearing Aid Compatible	-	-	Yes	-	-
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	-	Yes Classic Audio	Yes	Yes Classic Audio	-
Infrared (IR)	-	-	-	Yes	Yes
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	-	Yes	Yes Micro-USB	-	Yes
Wi-Fi	-	-	Yes	-	-
Contacts
Picture ID	Yes	Yes	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	-	Yes	n/a	n/a	n/a
Customization
Changeable Body Plates	-	-	-	Yes	-
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	-	-	n/a	n/a	n/a
Data & Network
Data Tethering	-	Yes	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	-	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	-	Yes	-	Yes
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	-	Yes	n/a	n/a	n/a
EMS / Picture Messaging	Yes	Yes	n/a	n/a	n/a
Instant Messaging	-	-	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	-	-	Yes	-	-
Music Player	-	Yes	n/a	n/a	n/a
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	Yes	-	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	Yes	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	-	n/a	n/a	n/a
Push-To-Talk	-	Yes *	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-X640	Motorola KRZR K1	Nokia Lumia 900	Nokia 3650	Palm Treo 600 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Motorola KRZR K1	Nokia Lumia 900	Nokia 3650	Palm Treo 600 (CDMA)