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Specifications
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Phone	ZTE Z998 / Unico LTE	Sony Ericsson K850	HTC ThunderBolt	Motorola Citrus	Samsung Trance SCH-U490
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.5" diag. 16 : 9	2.2" diag. 4 : 3	4.3" diag. 5 : 3	3" diag. 4 : 3	2.1" diag. 4 : 3
Display Resolution & Type	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	240 x 320 pixels (~133 ppi) LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	60 Hz	?
Battery	2,070 mAh	?	1,400 mAh	1,150 mAh	?
Processor	1.2 GHz Qualcomm Snapdragon 400 MSM8930	?	1 GHz Qualcomm Snapdragon S2 MSM8655	?	?
RAM	1 GB	?	768 MB	?	?
Storage	4 GB	? raw hardware	8 GB	? raw hardware	? raw hardware
Main Camera	5 megapixel	5 megapixel	8 megapixel	3 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	?	720p HD	CIF (352 x 288)	-
Front Camera	1 megapixel	-	1 megapixel	-	-
Weight	4.8 oz (136g)	4.2 oz (119g)	5.78 oz (164g)	3.88 oz (110g)	3.53 oz (100g)
Dimensions	5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm)	4" x 1.9" x 0.7" (102 x 48 x 17.8 mm)	4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm)	4.09" x 2.32" x 0.59" (104 x 59 x 15 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)
Form Factor	Slab	Slab	Slab	Slab	Slide
Platform / OS	Android	(proprietary)	Android	Android	(proprietary)
Network Bands	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	4G LTE: 13 CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	LTE (Cat 3)	HSDPA 3.6	LTE (Cat 3)	EVDO r0	1xRTT
Features
Flashlight	-	-	Yes	-	-
GPS / Location	n/a	-	n/a	n/a	Yes
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a	Yes
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	-	Yes	-	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	n/a	-	n/a	n/a	-
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	-
Contacts
Picture ID	n/a	Yes	n/a	n/a	Yes
Ringer ID	n/a	Yes	n/a	n/a	Yes
Voice Dialing	n/a	Yes	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	Yes	n/a	n/a	Yes
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	Yes
WAP / Web Browser	n/a	Yes	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	Yes	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
FM Radio	-	Yes	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	Yes
Music Player	n/a	Yes	n/a	n/a	Yes
Photo & Video
DLNA	-	-	Yes	-	-
Video Calling	n/a	Yes *	n/a	n/a	-
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	Yes	n/a	n/a	-
Voice Memo	n/a	Yes	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	Yes	n/a	n/a	-
Voice
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Z998 / Unico LTE	Sony Ericsson K850	HTC ThunderBolt	Motorola Citrus	Samsung Trance SCH-U490
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Z998 / Unico LTE	Sony Ericsson K850	HTC ThunderBolt	Motorola Citrus	Samsung Trance SCH-U490