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Phone	Nokia N81	HTC Windows Phone 8S	Samsung Byline R310	Motorola VA76r Tundra	Samsung Ace SPH-i325
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	4" diag. 5 : 3	1.8" diag. 4 : 3	2.2" diag. 4 : 3	2.3" diag. 4 : 3
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	128 x 160 pixels (~116 ppi) LCD (STN)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	320 x 240 pixels (~174 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	1,050 mAh	1,700 mAh	800 mAh	1,130 mAh	1,300 mAh
Processor	369 MHz ARM 11	1 GHz Qualcomm Snapdragon S4	?	?	416 MHz PXA270
RAM	?	512 MB	?	?	?
Storage	8 GB *	4 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	2 megapixel	5 megapixel	-	2 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	VGA (640 x 480)	720p HD	-	?	QVGA (320 x 240)
Front Camera	-	-	-	-	-
Weight	4.94 oz (140g)	3.99 oz (113g)	3.25 oz (92g)	5.15 oz (146g)	3.9 oz (111g)
Dimensions	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)	4.74" x 2.48" x 0.4" (121 x 63 x 10.3 mm)	3.5" x 1.7" x 0.77" (89 x 43 x 19.6 mm)	3.84" x 2.14" x 0.95" (98 x 54 x 24.1 mm)	4.65" x 2.32" x 0.46" (118 x 59 x 11.7 mm)
Form Factor	Slide	Slab	Clamshell	Clamshell	Slab
Platform / OS	S60 (Symbian)	Windows	(proprietary)	(proprietary)	Windows Mobile Standard
Network Bands	WCDMA: 1 GSM: 850, 900, 1800, 1900	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1700, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 GSM: 900, 1800
Data Technology	EDGE	HSPA+ 21	1xRTT	HSDPA 3.6	EVDO r0
Features
Flashlight	-	Yes	-	-	-
GPS / Location	n/a	n/a	Yes	Yes	n/a
Ruggedized	-	-	-	Yes	-
Accessibility
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M4 (very compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	Yes	-
Ringer Profiles	Yes	-	-	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
USB	Yes Micro-USB	Yes	-	Yes Mini-USB	Yes
Wi-Fi	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	-	-	-
Contacts
Picture ID	n/a	n/a	Yes	Yes	n/a
Ringer ID	n/a	n/a	Yes	Yes	n/a
Voice Dialing	n/a	n/a	Yes	Yes	n/a
Customization
Custom Graphics	n/a	n/a	Yes	Yes	n/a
Custom Ringtones	n/a	n/a	Yes	Yes	n/a
Real-Music Ringers	n/a	n/a	-	Yes	n/a
Data & Network
Data Tethering	n/a	n/a	-	Yes	n/a
WAP / Web Browser	n/a	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	Yes Capacitive	-	-	-
Memory
Memory Card Slot	Yes *	Yes	-	Yes	Yes
Messaging
Email Client	n/a	n/a	-	Yes	n/a
Instant Messaging	n/a	n/a	-	Yes	n/a
MMS	n/a	n/a	Yes	Yes	n/a
Text Messaging Templates	n/a	n/a	Yes	Yes	n/a
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	Yes	Yes	-	-	-
Music Player	n/a	n/a	-	Yes	n/a
Stereo Speakers	Yes	-	-	-	-
Photo & Video
Video Calling	n/a	n/a	-	-	n/a
Productivity
Alarm	n/a	n/a	Yes	Yes	n/a
Calculator	n/a	n/a	Yes	Yes	n/a
Calendar	n/a	n/a	Yes	Yes	n/a
To-Do List	n/a	n/a	-	Yes	n/a
Voice Memo	n/a	n/a	-	Yes	n/a
Software
BREW	n/a	n/a	Yes	-	n/a
Games	n/a	n/a	Yes	Yes	n/a
Java (J2ME)	n/a	n/a	-	Yes	n/a
Voice
Push-To-Talk	Yes *	-	Yes	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Nokia N81	HTC Windows Phone 8S	Samsung Byline R310	Motorola VA76r Tundra	Samsung Ace SPH-i325
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia N81	HTC Windows Phone 8S	Samsung Byline R310	Motorola VA76r Tundra	Samsung Ace SPH-i325