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Phone	Samsung SGH-X640	Audiovox PPC 4100 / SP230	Nokia Lumia 635 (CDMA)	Samsung SGH-E635 / SGH-E630	Samsung SGH-T809 / SGH-D820
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	4.5" diag. 16 : 9	?	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	800 mAh	1,480 mAh	1,830 mAh	800 mAh	?
Processor	?	400 MHz Intel XScale	1.2 GHz Qualcomm Snapdragon 400 (MSM8926)	?	?
RAM	?	?	512 MB	?	?
Storage	? raw hardware	? raw hardware	8 GB	? raw hardware	? raw hardware
Main Camera	Yes	-	5 megapixel	Yes	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	720p HD	-	CIF (352 x 288)
Front Camera	-	-	-	-	-
Weight	3 oz (85g)	5.57 oz (158g)	4.73 oz (134g)	2.78 oz (79g)	3.35 oz (95g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.29" x 2.7" x 0.85" (109 x 69 x 21.6 mm)	5.1" x 2.63" x 0.36" (130 x 67 x 9.1 mm)	3.34" x 1.69" x 0.85" (85 x 43 x 21.6 mm)	3.9" x 2" x 0.58" (99 x 51 x 14.7 mm)
Form Factor	Clamshell	Slab	Slab	Slide	Slide
Platform / OS	(proprietary)	Windows Mobile Professional	Windows	(proprietary)	(proprietary)
Network Bands	GSM: 900, 1800, 1900	GSM: 850, 1800, 1900 *	4G LTE: 25, 26, 41 WCDMA: 1, 2, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900	GSM: 850, 1800, 1900 *	GSM: 850, 900, 1800, 1900
Data Technology	GPRS	GPRS	LTE (Cat 3)	GPRS	EDGE
Features
GPS / Location	-	n/a	n/a	-	-
Accessibility
Hearing Aid Compatible	-	-	Yes M3, T4 (very tele-coil compatible)	-	Yes M3 (mostly compatible)
Multiple Languages	Yes	n/a	n/a	Yes	Yes
TTY/TDD (Digital)	-	-	Yes	-	Yes
Connectivity
Bluetooth	-	-	Yes	-	Yes
Infrared (IR)	-	Yes	-	Yes	-
Mobile Hotspot	-	n/a	n/a	-	-
USB	-	Yes	Yes Micro-USB	-	Yes
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	-	-
Contacts
Picture ID	Yes	n/a	n/a	Yes	Yes
Ringer ID	Yes	n/a	n/a	Yes	Yes
Voice Dialing	-	n/a	n/a	-	-
Customization
Custom Graphics	Yes	n/a	n/a	Yes	Yes
Custom Ringtones	Yes	n/a	n/a	Yes	Yes
Real-Music Ringers	-	n/a	n/a	-	Yes
Data & Network
Data Tethering	-	n/a	n/a	Yes	Yes
WAP / Web Browser	Yes	n/a	n/a	Yes	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	Yes	Yes Capacitive	-	-
Memory
Memory Card Slot	-	Yes	Yes	-	Yes
Messaging
Email Client	-	n/a	n/a	-	-
EMS / Picture Messaging	Yes	n/a	n/a	Yes	Yes
Instant Messaging	-	n/a	n/a	-	Yes
MMS	Yes	n/a	n/a	Yes	Yes
Text Messaging Templates	Yes	n/a	n/a	Yes	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	-	-	Yes	-	-
Music Player	-	n/a	n/a	-	Yes
Stereo Speakers	-	-	-	-	Yes
Photo & Video
DLNA	-	-	Yes	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	Yes
Calculator	Yes	n/a	n/a	Yes	Yes
Calendar	Yes	n/a	n/a	Yes	Yes
To-Do List	Yes	n/a	n/a	Yes	Yes
Voice Memo	Yes	n/a	n/a	Yes	Yes
Software
Games	Yes	n/a	n/a	Yes	Yes
Java (J2ME)	Yes	n/a	n/a	Yes	Yes
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-X640	Audiovox PPC 4100 / SP230	Nokia Lumia 635 (CDMA)	Samsung SGH-E635 / SGH-E630	Samsung SGH-T809 / SGH-D820
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Audiovox PPC 4100 / SP230	Nokia Lumia 635 (CDMA)	Samsung SGH-E635 / SGH-E630	Samsung SGH-T809 / SGH-D820