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Phone	Nokia Lumia 635 (CDMA)	Ericsson T66	Nokia 1661	Samsung SGH-P850 / P858	Nokia 3250
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.5" diag. 16 : 9	?	1.8" diag. 4 : 3	?	?
Display Resolution & Type	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	?	128 x 160 pixels (~114 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	176 x 208 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	1,830 mAh	?	860 mAh	950 mAh	1,100 mAh
Processor	1.2 GHz Qualcomm Snapdragon 400 (MSM8926)	?	?	?	?
RAM	512 MB	?	?	?	?
Storage	8 GB	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	-	-	3 megapixel	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	-	?	QCIF (176 x 144)
Front Camera	-	-	-	-	-
Weight	4.73 oz (134g)	2.08 oz (59g)	2.9 oz (82g)	4.23 oz (120g)	4.06 oz (115g)
Dimensions	5.1" x 2.63" x 0.36" (130 x 67 x 9.1 mm)	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	4.25" x 1.8" x 0.53" (108 x 46 x 13.5 mm)	3.77" x 1.86" x 0.96" (96 x 47 x 24.4 mm)	4.06" x 1.97" x 0.75" (103 x 50 x 19.1 mm)
Form Factor	Slab	Slab	Slab	Clamshell	Slab
Platform / OS	Windows	(proprietary)	(proprietary)	(proprietary)	S60 (Symbian)
Network Bands	4G LTE: 25, 26, 41 WCDMA: 1, 2, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	GSM: 850, 1900	GSM: 900, 1800, 1900	GSM: 900, 1800, 1900
Data Technology	LTE (Cat 3)	-	-	EDGE	EDGE
Features
Flashlight	-	-	Yes	-	-
GPS / Location	n/a	-	-	-	n/a
Accessibility
Hearing Aid Compatible	Yes	-	-	-	-
Multiple Languages	n/a	Yes	-	Yes	n/a
TTY/TDD (Digital)	Yes	-	-	-	-
Alerts
Extra Display	-	-	-	Yes	-
Ringer Profiles	-	Yes	Yes	-	Yes
Connectivity
Bluetooth	Yes	-	-	Yes	Yes
Mobile Hotspot	n/a	-	-	-	n/a
USB	Yes Micro-USB	-	-	Yes	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	-
Contacts
Picture ID	n/a	-	-	Yes	n/a
Ringer ID	n/a	-	-	Yes	n/a
Voice Dialing	n/a	-	-	-	n/a
Customization
Custom Graphics	n/a	Yes	-	Yes	n/a
Custom Ringtones	n/a	Yes	-	Yes	n/a
Real-Music Ringers	n/a	-	-	Yes	n/a
Data & Network
Data Tethering	n/a	-	-	-	n/a
WAP / Web Browser	n/a	Yes	-	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	-	Yes	-
Touch Screen	Yes	-	-	-	-
Memory
Memory Card Slot	Yes	-	-	Yes	Yes
Messaging
Email Client	n/a	-	-	Yes	n/a
EMS / Picture Messaging	n/a	Yes	-	-	n/a
Instant Messaging	n/a	-	-	-	n/a
MMS	n/a	-	-	Yes	n/a
Text Messaging Templates	n/a	Yes	-	Yes	n/a
Music
FM Radio	Yes	-	Yes	-	Yes
Headphone Jack (3.5mm)	Yes	-	-	-	-
Music Player	n/a	-	-	Yes	n/a
Stereo Speakers	-	-	-	Yes	-
Photo & Video
DLNA	Yes	-	-	-	-
TV Output	-	-	-	Yes	-
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	Yes	-	-	n/a
Voice Memo	n/a	-	Yes	Yes	n/a
Software
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	-	-	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	-	Yes	-	n/a
Push-To-Talk	-	-	-	-	Yes *
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Nokia Lumia 635 (CDMA)	Ericsson T66	Nokia 1661	Samsung SGH-P850 / P858	Nokia 3250
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia Lumia 635 (CDMA)	Ericsson T66	Nokia 1661	Samsung SGH-P850 / P858	Nokia 3250