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Phone	Siemens C56	Samsung SPH-A660 / VI660	Motorola Droid X2	Motorola Admiral	ZTE Z998 / Unico LTE
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	4.3" diag. 16 : 9	3.1" diag. 4 : 3	4.5" diag. 16 : 9
Display Resolution & Type	101 x 64 pixels	128 x 160 pixels LCD (Color)	540 x 960 pixels (~256 ppi) LCD (TFT/TFD)	480 x 640 pixels (~258 ppi) LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	60 Hz
Battery	700 mAh	?	1,540 mAh	1,860 mAh	2,070 mAh
Processor	?	?	1 GHz dual-core Nvidia Tegra 2 AP20H	1.2 GHz Qualcomm Snapdragon S2 MSM8655	1.2 GHz Qualcomm Snapdragon 400 MSM8930
RAM	?	?	?	512 MB	1 GB
Storage	? raw hardware	? raw hardware	8 GB	4 GB	4 GB
Main Camera	-	-	8 megapixel	5 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	720p HD	720p HD	720p HD
Front Camera	-	-	-	-	1 megapixel
Weight	3 oz (85g)	3.54 oz (100g)	5.47 oz (155g)	4.71 oz (134g)	4.8 oz (136g)
Dimensions	3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	5" x 2.58" x 0.39" (127 x 66 x 9.9 mm)	4.68" x 2.44" x 0.48" (119 x 62 x 12.2 mm)	5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Android	Android	Android
Network Bands	GSM: 850, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	CDMA: 800, 850, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	GPRS	1xRTT	EVDO rA	EVDO rA	LTE (Cat 3)
Features
GPS / Location	Yes	Yes	n/a	n/a	n/a
Ruggedized	-	-	-	Yes	-
Accessibility
Adjustable Text Size	-	-	n/a	n/a	n/a
Hearing Aid Compatible	-	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	-	-	-	-
Connectivity
Bluetooth	-	-	Yes	Yes	Yes
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes	-	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	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	Yes	n/a	n/a	n/a
Customization
Changeable Body Plates	Yes	-	-	-	-
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	-	-	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	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
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	-	Yes	Yes	Yes
Messaging
Email Client	-	-	n/a	n/a	n/a
EMS / Picture Messaging	Yes	-	n/a	n/a	n/a
Instant Messaging	-	-	n/a	n/a	n/a
MMS	-	-	n/a	n/a	n/a
Text Messaging Templates	Yes	-	n/a	n/a	n/a
Music
FM Radio	-	-	Yes	Yes	-
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	-	-	n/a	n/a	n/a
Photo & Video
DLNA	-	-	Yes	Yes	-
TV Output	-	-	Yes	-	-
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	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
Headset Jack (2.5 mm)	-	Yes	n/a	n/a	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Siemens C56	Samsung SPH-A660 / VI660	Motorola Droid X2	Motorola Admiral	ZTE Z998 / Unico LTE
	X >	< X >	< X >	< X >	< X

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


Phone	Siemens C56	Samsung SPH-A660 / VI660	Motorola Droid X2	Motorola Admiral	ZTE Z998 / Unico LTE