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Phone	ZTE Z998 / Unico LTE	Kyocera KX12	HTC 2125 / 2100 (Faraday)	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Samsung SPH-A660 / VI660
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.5" diag. 16 : 9	?	?	?	?
Display Resolution & Type	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	128 x 128 pixels LCD (STN)	240 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (Color)
Display Refresh	60 Hz	?	?	?	?
Battery	2,070 mAh	1,800 mAh	1,150 mAh	1,490 mAh	?
Processor	1.2 GHz Qualcomm Snapdragon 400 MSM8930	?	200 MHz OMAP 850	400 MHz Intel XScale	?
RAM	1 GB	?	?	?	?
Storage	4 GB	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	-	1 megapixel	Yes	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	QCIF (176 x 144)	QCIF (176 x 144)	-
Front Camera	1 megapixel	-	-	-	-
Weight	4.8 oz (136g)	4.62 oz (131g)	4.09 oz (116g)	7.41 oz (210g)	3.54 oz (100g)
Dimensions	5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm)	4.33" x 1.97" x 1.02" (110 x 50 x 25.9 mm)	4.57" x 1.81" x 0.69" (116 x 46 x 17.5 mm)	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)
Form Factor	Slab	Slab	Slab	Slide	Clamshell
Platform / OS	Android	(proprietary)	Windows Mobile Standard	Windows Mobile Professional	(proprietary)
Network Bands	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900 AMPS: 850	GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850
Data Technology	LTE (Cat 3)	1xRTT	EDGE	GPRS	1xRTT
Features
Flashlight	-	Yes	-	-	-
GPS / Location	n/a	Yes	n/a	n/a	Yes
Ruggedized	-	Yes	-	-	-
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a	-
Hearing Aid Compatible	Yes M3, T4 (very 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	-
Infrared (IR)	-	-	Yes	Yes	-
Mobile Hotspot	n/a	-	n/a	n/a	-
USB	Yes Micro-USB	-	Yes Mini-USB	Yes	-
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	Yes	-
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	-	n/a	n/a	-
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	Yes
External Antenna Jack	n/a	-	n/a	n/a	-
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
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	Yes Capacitive	-	-	Yes	-
Memory
Memory Card Slot	Yes	-	Yes	Yes	-
Messaging
Email Client	n/a	-	n/a	n/a	-
EMS / Picture Messaging	n/a	Yes	n/a	n/a	-
Instant Messaging	n/a	-	n/a	n/a	-
MMS	n/a	-	n/a	n/a	-
Text Messaging Templates	n/a	Yes	n/a	n/a	-
Music
Headphone Jack (3.5mm)	Yes	-	-	-	-
Music Player	n/a	-	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	-	n/a	n/a	Yes
Voice Memo	n/a	Yes	n/a	n/a	Yes
Software
BREW	n/a	Yes *	n/a	n/a	-
Games	n/a	Yes	n/a	n/a	Yes
Java (J2ME)	n/a	-	n/a	n/a	Yes
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a	Yes
Push-To-Talk	-	Yes	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	-
	* Some versions only
	ZTE Z998 / Unico LTE	Kyocera KX12	HTC 2125 / 2100 (Faraday)	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Samsung SPH-A660 / VI660
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Z998 / Unico LTE	Kyocera KX12	HTC 2125 / 2100 (Faraday)	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Samsung SPH-A660 / VI660