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Phone	Nokia Lumia 920	Samsung Galaxy S 4 zoom	Samsung SGH-X640	Apple iPhone 4 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	4.5" diag. 5 : 3	4.3" diag. 16 : 9	?	3.5" diag. 5 : 3
Display Resolution & Type	768 x 1280 pixels (~332 ppi) LCD (TFT/TFD)	540 x 960 pixels (~256 ppi) AMOLED	128 x 160 pixels LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	60 Hz
Battery	2,000 mAh	2,330 mAh	800 mAh	?
Processor	1.5 GHz Qualcomm Snapdragon S4	1.5 GHz Samsung Exynos 4212	?	?
RAM	1 GB	1.5 GB	?	?
Storage	32 GB	16 GB	? raw hardware	8 GB *
Main Camera	8 megapixel	16 megapixel	Yes	5 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	1080p HD	1080p HD	-	720p HD
Front Camera	1 megapixel	2 megapixel	-	Yes
Weight	6.53 oz (185g)	9.9 oz (281g)	3 oz (85g)	4.8 oz (136g)
Dimensions	5.12" x 2.79" x 0.42" (130 x 71 x 10.7 mm)	4.94" x 2.5" x 1.06" (125 x 64 x 26.9 mm)	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)
Form Factor	Slab	Slab	Clamshell	Slab
Platform / OS	Windows	Android	(proprietary)	iOS
Network Bands	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	CDMA: 850, 1900
Data Technology	LTE (Cat 3)	LTE (Cat 3)	GPRS	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 M3, T3 (mostly tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	-	Yes
Infrared (IR)	-	Yes	-	-
Mobile Hotspot	n/a	n/a	-	n/a
NFC	Yes	Yes	-	-
USB	Yes Micro-USB	Yes Micro-USB	-	Yes
Wi-Fi	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 a,b,g,n)	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	n/a	Yes	n/a
Ringer ID	n/a	n/a	Yes	n/a
Voice Dialing	n/a	n/a	-	n/a
Customization
Custom Graphics	n/a	n/a	Yes	n/a
Custom Ringtones	n/a	n/a	Yes	n/a
Real-Music Ringers	n/a	n/a	-	n/a
Data & Network
Data Tethering	n/a	n/a	-	n/a
WAP / Web Browser	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	-	-
Messaging
Email Client	n/a	n/a	-	n/a
EMS / Picture Messaging	n/a	n/a	Yes	n/a
Instant Messaging	n/a	n/a	-	n/a
MMS	n/a	n/a	Yes	n/a
Text Messaging Templates	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	Yes	-	Yes
Music Player	n/a	n/a	-	n/a
Photo & Video
DLNA	-	Yes	-	-
Miracast	-	Yes	-	-
TV Output	-	Yes	-	Yes
Video Calling	n/a	n/a	-	n/a
Power
Wireless Charging	Yes	-	-	-
Productivity
Alarm	n/a	n/a	Yes	n/a
Calculator	n/a	n/a	Yes	n/a
Calendar	n/a	n/a	Yes	n/a
To-Do List	n/a	n/a	Yes	n/a
Voice Memo	n/a	n/a	Yes	n/a
Software
Games	n/a	n/a	Yes	n/a
Java (J2ME)	n/a	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes
	Nokia Lumia 920	Samsung Galaxy S 4 zoom	Samsung SGH-X640	Apple iPhone 4 (CDMA)
	X >	< X >	< X >	< X

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


Phone	Nokia Lumia 920	Samsung Galaxy S 4 zoom	Samsung SGH-X640	Apple iPhone 4 (CDMA)