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Phone	Motorola Droid 4	ZTE Z221	Kyocera 3245	Siemens CX75	Sony Ericsson Xperia X10 mini pro (2010)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Not yet released	Released
Display Size	4" diag. 16 : 9	2" diag. 4 : 3	?	?	2.6" diag. 4 : 3
Display Resolution & Type	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	? LCD (Grayscale)	132 x 176 pixels LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	1,785 mAh	900 mAh	?	750 mAh	930 mAh
Processor	?	?	?	?	600 MHz Qualcomm S1 MSM7227
RAM	1 GB	?	?	?	?
Storage	16 GB	142 MB	? raw hardware	? raw hardware	? raw hardware
Main Camera	8 megapixel	Yes	-	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	QCIF (176 x 144)	-	?	VGA (640 x 480)
Front Camera	1 megapixel	-	-	-	-
Weight	6.31 oz (179g)	3.24 oz (92g)	4.23 oz (120g)	3.46 oz (98g)	4.2 oz (119g)
Dimensions	5" x 2.65" x 0.5" (127 x 67 x 12.7 mm)	3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm)	4.61" x 1.97" x 1.02" (117 x 50 x 25.9 mm)	4.33" x 1.88" x 0.74" (110 x 48 x 18.8 mm)	3.5" x 2" x 0.7" (89 x 51 x 17.8 mm)
Form Factor	Slide	Clamshell	Slab	Slab	Slide
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	4G LTE: 13 CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	GSM: 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	LTE (Cat 3)	HSDPA 3.6	1xRTT	GPRS	HSPA 7.2
Features
GPS / Location	n/a	Yes	Yes	-	n/a
Accessibility
Hearing Aid Compatible	Yes	Yes	-	-	-
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	-
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	-	Yes Classic Audio	Yes
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	n/a	-	-	-	n/a
USB	Yes Micro-USB	Yes	-	Yes	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	Yes
Contacts
Picture ID	n/a	-	-	Yes	n/a
Ringer ID	n/a	-	-	Yes	n/a
Voice Dialing	n/a	-	Yes	-	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	Yes	-	-	n/a
Data & Network
Data Tethering	n/a	-	Yes	Yes	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	-	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	Yes	-	-	-	Yes
Memory
Memory Card Slot	Yes	-	-	Yes	Yes
Messaging
Email Client	n/a	Yes	-	Yes	n/a
EMS / Picture Messaging	n/a	-	Yes	Yes	n/a
Instant Messaging	n/a	Yes	-	-	n/a
MMS	n/a	Yes	-	Yes	n/a
Text Messaging Templates	n/a	Yes	-	-	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	-	-	Yes	n/a
Photo & Video
DLNA	Yes	-	-	-	-
TV Output	Yes	-	-	-	-
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	-	-	Yes	n/a
Voice Memo	n/a	Yes	Yes	Yes	n/a
Software
BREW	n/a	-	Yes *	-	n/a
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	Yes	-	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	-	Yes	-	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Motorola Droid 4	ZTE Z221	Kyocera 3245	Siemens CX75	Sony Ericsson Xperia X10 mini pro (2010)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Motorola Droid 4	ZTE Z221	Kyocera 3245	Siemens CX75	Sony Ericsson Xperia X10 mini pro (2010)