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Phone	Apple iPhone 4 (GSM)	Motorola Citrus	Siemens CT66 / C66 / C65 / C71 / C70	Sony Ericsson K850	Huawei Ascend Mate2
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.5" diag. 5 : 3	3" diag. 4 : 3	?	2.2" diag. 4 : 3	6.1" diag. 16 : 9
Display Resolution & Type	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	240 x 320 pixels (~133 ppi) LCD (TFT/TFD)	130 x 130 pixels LCD (Color)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	720 x 1280 pixels (~241 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	?	?	60 Hz
Battery	?	1,150 mAh	600 mAh	?	3,900 mAh
Processor	Apple A4	?	?	?	1.6 GHz Qualcomm Snapdragon 400 MSM8928
RAM	?	?	?	?	2 GB
Storage	32 GB *	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	5 megapixel	3 megapixel	Yes	5 megapixel	13 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	CIF (352 x 288)	-	?	1080p HD
Front Camera	Yes	-	-	-	5 megapixel
Weight	4.8 oz (136g)	3.88 oz (110g)	3 oz (85g)	4.2 oz (119g)	7.24 oz (205g)
Dimensions	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4.09" x 2.32" x 0.59" (104 x 59 x 15 mm)	4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm)	4" x 1.9" x 0.7" (102 x 48 x 17.8 mm)	6.32" x 3.35" x 0.38" (161 x 85 x 9.6 mm)
Form Factor	Slab	Slab	Slab	Slab	Slab
Platform / OS	iOS	Android	(proprietary)	(proprietary)	Android
Network Bands	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	GSM: 850, 1800, 1900 *	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSPA 7.2	EVDO r0	GPRS	HSDPA 3.6	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	n/a	-	-	n/a
Accessibility
Adjustable Text Size	n/a	n/a	-	-	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	-	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	-	-	Yes	Yes
Alerts
Ringer Profiles	-	-	Yes	Yes	-
Connectivity
Bluetooth	Yes	Yes	-	Yes	Yes
Infrared (IR)	-	-	Yes	-	-
Mobile Hotspot	n/a	n/a	-	-	n/a
USB	Yes	Yes Micro-USB	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	n/a	Yes	Yes	n/a
Ringer ID	n/a	n/a	Yes	Yes	n/a
Voice Dialing	n/a	n/a	-	Yes	n/a
Customization
Changeable Body Plates	-	-	Yes	-	-
Custom Graphics	n/a	n/a	Yes	Yes	n/a
Custom Ringtones	n/a	n/a	Yes	Yes	n/a
Real-Music Ringers	n/a	n/a	-	Yes	n/a
Data & Network
Data Tethering	n/a	n/a	-	Yes	n/a
WAP / Web Browser	n/a	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	-	Yes	Yes
Touch Screen	Yes Capacitive	Yes Capacitive	-	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	n/a	n/a	-	Yes	n/a
EMS / Picture Messaging	n/a	n/a	Yes	-	n/a
Instant Messaging	n/a	n/a	-	-	n/a
MMS	n/a	n/a	Yes	Yes	n/a
Text Messaging Templates	n/a	n/a	Yes	Yes	n/a
Music
FM Radio	-	-	-	Yes	Yes
Headphone Jack (3.5mm)	Yes	Yes	-	-	Yes
Music Player	n/a	n/a	-	Yes	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Miracast	-	-	-	-	Yes
TV Output	Yes	-	-	-	-
Video Calling	n/a	n/a	-	Yes *	n/a
Productivity
Alarm	n/a	n/a	Yes	Yes	n/a
Calculator	n/a	n/a	Yes	Yes	n/a
Calendar	n/a	n/a	Yes	Yes	n/a
To-Do List	n/a	n/a	Yes	Yes	n/a
Voice Memo	n/a	n/a	Yes	Yes	n/a
Software
Games	n/a	n/a	Yes	Yes	n/a
Java (J2ME)	n/a	n/a	Yes	Yes	n/a
Voice
Call Screening	-	-	Yes	-	-
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Apple iPhone 4 (GSM)	Motorola Citrus	Siemens CT66 / C66 / C65 / C71 / C70	Sony Ericsson K850	Huawei Ascend Mate2
	X >	< X >	< X >	< X >	< X

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


Phone	Apple iPhone 4 (GSM)	Motorola Citrus	Siemens CT66 / C66 / C65 / C71 / C70	Sony Ericsson K850	Huawei Ascend Mate2