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Phone	Nokia N-Gage QD	HTC ThunderBolt	Nokia N81	Nokia Lumia 810	Motorola V177
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Not yet released
Display Size	?	4.3" diag. 5 : 3	2.4" diag. 4 : 3	4.3" diag. 5 : 3	?
Display Resolution & Type	176 x 208 pixels LCD (Color)	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED	128 x 160 pixels LCD (STN)
Display Refresh	?	60 Hz	?	?	?
Battery	1,070 mAh	1,400 mAh	1,050 mAh	1,800 mAh	?
Processor	?	1 GHz Qualcomm Snapdragon S2 MSM8655	369 MHz ARM 11	1.5 GHz Qualcomm Snapdragon	?
RAM	?	768 MB	?	1 GB	?
Storage	? raw hardware	8 GB	8 GB *	8 GB	? raw hardware
Main Camera	-	8 megapixel	2 megapixel	8 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	VGA (640 x 480)	1080p HD	-
Front Camera	-	1 megapixel	-	1 megapixel	-
Weight	5.04 oz (143g)	5.78 oz (164g)	4.94 oz (140g)	5.11 oz (145g)	3.67 oz (104g)
Dimensions	4.65" x 2.68" x 0.87" (118 x 68 x 22.1 mm)	4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm)	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	3.48" x 1.88" x 1" (88 x 48 x 25.4 mm)
Form Factor	Slab	Slab	Slide	Slab	Clamshell
Platform / OS	S60 (Symbian)	Android	S60 (Symbian)	Windows	(proprietary)
Network Bands	GSM: 850, 1900 *	4G LTE: 13 CDMA: 850, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 1900
Data Technology	GPRS	LTE (Cat 3)	EDGE	HSPA+ 42	GPRS
Features
Flashlight	-	Yes	-	-	-
GPS / Location	n/a	n/a	n/a	n/a	-
Accessibility
Adjustable Text Size	n/a	n/a	n/a	n/a	-
Hearing Aid Compatible	-	Yes	-	Yes M3, T4 (very tele-coil compatible)	-
Multiple Languages	n/a	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	-	Yes	-	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	Yes	-	Yes	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	-
Mobile Hotspot	n/a	n/a	n/a	n/a	-
NFC	-	-	-	Yes	-
USB	-	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB	-
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	Yes 4 (802.11 a,b,g,n)	-
Contacts
Picture ID	n/a	n/a	n/a	n/a	-
Ringer ID	n/a	n/a	n/a	n/a	-
Voice Dialing	n/a	n/a	n/a	n/a	-
Customization
Custom Graphics	n/a	n/a	n/a	n/a	Yes
Custom Ringtones	n/a	n/a	n/a	n/a	Yes
Real-Music Ringers	n/a	n/a	n/a	n/a	-
Data & Network
Data Tethering	n/a	n/a	n/a	n/a	Yes
WAP / Web Browser	n/a	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	n/a	n/a	Yes
Side Keys	-	Yes	Yes	Yes	-
Touch Screen	-	Yes Capacitive	-	Yes Capacitive	-
Memory
Memory Card Slot	Yes	Yes	Yes *	Yes	-
Messaging
Email Client	n/a	n/a	n/a	n/a	-
EMS / Picture Messaging	n/a	n/a	n/a	n/a	Yes
Instant Messaging	n/a	n/a	n/a	n/a	Yes
MMS	n/a	n/a	n/a	n/a	Yes
Text Messaging Templates	n/a	n/a	n/a	n/a	Yes
Music
FM Radio	-	Yes	Yes	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	-
Music Player	n/a	n/a	n/a	n/a	-
Stereo Speakers	-	-	Yes	-	-
Photo & Video
DLNA	-	Yes	-	-	-
Video Calling	n/a	n/a	n/a	n/a	-
Power
Wireless Charging	-	-	-	Yes	-
Productivity
Alarm	n/a	n/a	n/a	n/a	Yes
Calculator	n/a	n/a	n/a	n/a	Yes
Calendar	n/a	n/a	n/a	n/a	-
To-Do List	n/a	n/a	n/a	n/a	-
Voice Memo	n/a	n/a	n/a	n/a	-
Software
Games	n/a	n/a	n/a	n/a	Yes
Java (J2ME)	n/a	n/a	n/a	n/a	-
Voice
Headset Jack (2.5 mm)	n/a	n/a	n/a	n/a	Yes
Push-To-Talk	-	-	Yes *	-	Yes *
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Nokia N-Gage QD	HTC ThunderBolt	Nokia N81	Nokia Lumia 810	Motorola V177
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia N-Gage QD	HTC ThunderBolt	Nokia N81	Nokia Lumia 810	Motorola V177