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Phone	Nokia Lumia 810	Samsung SGH-R225 / SGH-R225M	Motorola Droid 4	Motorola A920	Audiovox CDM-8940
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.3" diag. 5 : 3	?	4" diag. 16 : 9	?	?
Display Resolution & Type	480 x 800 pixels (~217 ppi) AMOLED	128 x 64 pixels	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)	208 x 320 pixels LCD (Color)	176 x 220 pixels LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	?
Battery	1,800 mAh	?	1,785 mAh	?	1,100 mAh
Processor	1.5 GHz Qualcomm Snapdragon	?	?	?	?
RAM	1 GB	?	1 GB	?	?
Storage	8 GB	? raw hardware	16 GB	? raw hardware	? raw hardware
Main Camera	8 megapixel	-	8 megapixel	Yes	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	-	1080p HD	?	?
Front Camera	1 megapixel	-	1 megapixel	-	-
Weight	5.11 oz (145g)	3.35 oz (95g)	6.31 oz (179g)	7.48 oz (212g)	3.89 oz (110g)
Dimensions	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	4.33" x 1.81" x 0.93" (110 x 46 x 23.6 mm)	5" x 2.65" x 0.5" (127 x 67 x 12.7 mm)	5.83" x 2.36" x 0.94" (148 x 60 x 23.9 mm)	3.56" x 1.82" x 0.92" (90 x 46 x 23.4 mm)
Form Factor	Slab	Slab	Slide	Slab	Clamshell
Platform / OS	Windows	(proprietary)	Android	UIQ (Symbian)	(proprietary)
Network Bands	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	GSM: 900, 1900	4G LTE: 13 CDMA: 850, 1900	WCDMA: 1 GSM: 900, 1800, 1900	CDMA: 850, 1900
Data Technology	HSPA+ 42	-	LTE (Cat 3)	GPRS	EVDO r0
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	-	n/a	n/a	Yes
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a	-
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)	-	-
Multiple Languages	n/a	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Extra Display	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	-	Yes	-	-
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	n/a	-	n/a	n/a	-
NFC	Yes	-	-	-	-
USB	Yes Micro-USB	-	Yes Micro-USB	Yes	Yes
Wi-Fi	Yes 4 (802.11 a,b,g,n)	-	Yes 4 (802.11 b,g,n)	-	-
Contacts
Picture ID	n/a	-	n/a	n/a	Yes
Ringer ID	n/a	Yes	n/a	n/a	Yes
Voice Dialing	n/a	-	n/a	n/a	Yes
Customization
Custom Graphics	n/a	Yes	n/a	n/a	Yes
Custom Ringtones	n/a	Yes	n/a	n/a	Yes
Real-Music Ringers	n/a	-	n/a	n/a	-
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	Yes
WAP / Web Browser	n/a	-	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	Yes
Side Keys	Yes	-	Yes	Yes	Yes
Stylus	-	-	-	Yes	-
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	Yes Capacitive	-	Yes Capacitive	Yes	-
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	n/a	-	n/a	n/a	-
Instant Messaging	n/a	-	n/a	n/a	-
MMS	n/a	Yes	n/a	n/a	Yes
Text Messaging Templates	n/a	Yes	n/a	n/a	Yes
Music
Headphone Jack (3.5mm)	Yes	-	Yes	-	-
Music Player	n/a	-	n/a	n/a	Yes
Photo & Video
DLNA	-	-	Yes	-	-
TV Output	-	-	Yes	-	-
Video Calling	n/a	-	n/a	n/a	-
Power
Wireless Charging	Yes	-	-	-	-
Productivity
Alarm	n/a	Yes	n/a	n/a	Yes
Calculator	n/a	Yes	n/a	n/a	Yes
Calendar	n/a	Yes	n/a	n/a	Yes
To-Do List	n/a	-	n/a	n/a	-
Voice Memo	n/a	-	n/a	n/a	Yes
Software
BREW	n/a	-	n/a	n/a	Yes
Games	n/a	Yes	n/a	n/a	Yes *
Java (J2ME)	n/a	-	n/a	n/a	-
Voice
Call Screening	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a	Yes
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Nokia Lumia 810	Samsung SGH-R225 / SGH-R225M	Motorola Droid 4	Motorola A920	Audiovox CDM-8940
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia Lumia 810	Samsung SGH-R225 / SGH-R225M	Motorola Droid 4	Motorola A920	Audiovox CDM-8940