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Phone	Apple iPhone 4 (GSM)	Sony Ericsson Xperia X10 mini (2010)	Casio G'zOne Boulder	ZTE Savvy	Sony Xperia Z2
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Not yet released	Released	Released	Not yet released
Display Size	3.5" diag. 5 : 3	2.6" diag. 4 : 3	2" diag. 4 : 3	4" diag. 5 : 3	5.2" diag. 16 : 9
Display Resolution & Type	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	240 x 320 pixels (~157 ppi) LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	1080 x 1920 pixels (~424 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	?	60 Hz	60 Hz
Battery	?	?	810 mAh	1,650 mAh	3,200 mAh
Processor	Apple A4	600 MHz Qualcomm S1 MSM7227	?	1 GHz Qualcomm MSM8625	2.3 GHz Qualcomm Snapdragon 801 MSM8974AB
RAM	?	?	?	768 MB	3 GB
Storage	32 GB *	? raw hardware	? raw hardware	4 GB	16 GB
Main Camera	5 megapixel	5 megapixel	1 megapixel	5 megapixel	20 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	VGA (640 x 480)	?	WVGA / 480p	4K UHD
Front Camera	Yes	-	-	-	2 megapixel
Weight	4.8 oz (136g)	3.11 oz (88g)	4.9 oz (139g)	4.43 oz (126g)	5.75 oz (163g)
Dimensions	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	3.26" x 1.97" x 0.64" (83 x 50 x 16.3 mm)	3.9" x 2" x 0.9" (99 x 51 x 22.9 mm)	4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm)	5.78" x 2.89" x 0.32" (147 x 73 x 8.2 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Slab
Platform / OS	iOS	Android	(proprietary)	Android	Android
Network Bands	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 1, 2, 3, 4, 5, 7, 8, 13, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900
Data Technology	HSPA 7.2	HSPA 7.2	EVDO rA	EVDO rA	LTE (Cat 4)
Features
Flashlight	-	-	Yes	Yes	-
GPS / Location	n/a	n/a	Yes	n/a	n/a
Ruggedized	-	-	Yes	-	Yes
Water-Resistant	-	-	Yes	-	Yes IPX8 (SCUBA)
Accessibility
Adjustable Text Size	n/a	n/a	-	n/a	n/a
Hearing Aid Compatible	Yes	-	Yes	Yes	-
Multiple Languages	n/a	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	n/a	n/a	-	n/a	n/a
NFC	-	-	-	-	Yes
USB	Yes	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 a,ac,b,g,n)
Contacts
Picture ID	n/a	n/a	Yes	n/a	n/a
Ringer ID	n/a	n/a	Yes	n/a	n/a
Voice Dialing	n/a	n/a	Yes	n/a	n/a
Customization
Changeable Body Plates	-	-	Yes	-	-
Custom Graphics	n/a	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	n/a	-	n/a	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	n/a
WAP / Web Browser	n/a	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes	Yes	-	Yes	Yes
Memory
Memory Card Slot	-	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	-	n/a	n/a
EMS / Picture Messaging	n/a	n/a	Yes	n/a	n/a
Instant Messaging	n/a	n/a	-	n/a	n/a
MMS	n/a	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	n/a	Yes	n/a	n/a
Music
FM Radio	-	Yes	-	-	Yes
Headphone Jack (3.5mm)	Yes	Yes	-	Yes	Yes
Music Player	n/a	n/a	Yes	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	Yes
Miracast	-	-	-	-	Yes
TV Output	Yes	-	-	-	Yes
Productivity
Alarm	n/a	n/a	Yes	n/a	n/a
Calculator	n/a	n/a	Yes	n/a	n/a
Calendar	n/a	n/a	Yes	n/a	n/a
To-Do List	n/a	n/a	-	n/a	n/a
Voice Memo	n/a	n/a	Yes	n/a	n/a
Software
BREW	n/a	n/a	Yes	n/a	n/a
Games	n/a	n/a	Yes	n/a	n/a
Voice
Push-To-Talk	-	-	Yes	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Apple iPhone 4 (GSM)	Sony Ericsson Xperia X10 mini (2010)	Casio G'zOne Boulder	ZTE Savvy	Sony Xperia Z2
	X >	< X >	< X >	< X >	< X

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


Phone	Apple iPhone 4 (GSM)	Sony Ericsson Xperia X10 mini (2010)	Casio G'zOne Boulder	ZTE Savvy	Sony Xperia Z2