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Phone	Sony Ericsson K850	ZTE F160	Nokia N81	HTC ThunderBolt	Motorola Droid 4
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.2" diag. 4 : 3	2.4" diag. 4 : 3	2.4" diag. 4 : 3	4.3" diag. 5 : 3	4" diag. 16 : 9
Display Resolution & Type	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	60 Hz
Battery	?	900 mAh	1,050 mAh	1,400 mAh	1,785 mAh
Processor	?	?	369 MHz ARM 11	1 GHz Qualcomm Snapdragon S2 MSM8655	?
RAM	?	?	?	768 MB	1 GB
Storage	? raw hardware	? raw hardware	8 GB *	8 GB	16 GB
Main Camera	5 megapixel	3 megapixel	2 megapixel	8 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QCIF (176 x 144)	VGA (640 x 480)	720p HD	1080p HD
Front Camera	-	-	-	1 megapixel	1 megapixel
Weight	4.2 oz (119g)	2.96 oz (84g)	4.94 oz (140g)	5.78 oz (164g)	6.31 oz (179g)
Dimensions	4" x 1.9" x 0.7" (102 x 48 x 17.8 mm)	4.57" x 1.93" x 0.44" (116 x 49 x 11.2 mm)	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)	4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm)	5" x 2.65" x 0.5" (127 x 67 x 12.7 mm)
Form Factor	Slab	Slab	Slide	Slab	Slide
Platform / OS	(proprietary)	(proprietary)	S60 (Symbian)	Android	Android
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900	4G LTE: 13 CDMA: 850, 1900	4G LTE: 13 CDMA: 850, 1900
Data Technology	HSDPA 3.6	HSDPA 3.6	EDGE	LTE (Cat 3)	LTE (Cat 3)
Features
Flashlight	-	-	-	Yes	-
GPS / Location	-	Yes	n/a	n/a	n/a
Accessibility
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Ringer Profiles	Yes	Yes	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	-	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	Yes	-	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	Yes	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	-	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	-	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes *	Yes	Yes
Messaging
Email Client	Yes	-	n/a	n/a	n/a
Instant Messaging	-	Yes	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
FM Radio	Yes	-	Yes	Yes	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	Yes
Music Player	Yes	Yes	n/a	n/a	n/a
Stereo Speakers	-	-	Yes	-	-
Photo & Video
DLNA	-	-	-	Yes	Yes
TV Output	-	-	-	-	Yes
Video Calling	Yes *	-	n/a	n/a	n/a
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	Yes	-	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	Yes	n/a	n/a	n/a
Voice
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Sony Ericsson K850	ZTE F160	Nokia N81	HTC ThunderBolt	Motorola Droid 4
	X >	< X >	< X >	< X >	< X

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


Phone	Sony Ericsson K850	ZTE F160	Nokia N81	HTC ThunderBolt	Motorola Droid 4