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Phone	Nokia E66	Motorola C290	Siemens C56	HTC EVO 4G	ZTE Citrine
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	?	?	4.3" diag. 5 : 3	4" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	101 x 64 pixels	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	60 Hz
Battery	1,000 mAh	1,020 mAh	700 mAh	1,500 mAh	1,650 mAh
Processor	?	?	?	1 GHz Qualcomm Snapdragon S1 QSD8650	?
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	3 megapixel	-	-	8 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	-	-	720p HD	?
Front Camera	-	-	-	Yes	Yes
Weight	4.27 oz (121g)	3.53 oz (100g)	3 oz (85g)	6 oz (170g)	4.82 oz (137g)
Dimensions	4.21" x 1.93" x 0.51" (107 x 49 x 13 mm)	3.43" x 1.91" x 0.93" (87 x 49 x 23.6 mm)	3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm)	4.8" x 2.6" x 0.5" (122 x 66 x 12.7 mm)	4.92" x 2.56" x 0.41" (125 x 65 x 10.4 mm)
Form Factor	Slide	Clamshell	Slab	Slab	Slab
Platform / OS	S60 (Symbian)	(proprietary)	(proprietary)	Android	Android
Network Bands	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900 AMPS: 850	GSM: 850, 1900	4G WiMAX: 41 CDMA: 850, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	HSDPA 3.6	1xRTT	GPRS	WiMAX	LTE (Cat 3)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	Yes	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	-	-	n/a	n/a
Hearing Aid Compatible	-	Yes M3 (mostly compatible)	-	Yes	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	-	Yes	-	-
Connectivity
Bluetooth	Yes	-	-	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	-	-	n/a	n/a
USB	Yes Micro-USB	Yes Mini-USB	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes 802.11 b,g	-	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	-	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	-	Yes	n/a	n/a
Customization
Changeable Body Plates	-	-	Yes	-	-
Custom Graphics	n/a	-	Yes	n/a	n/a
Custom Ringtones	n/a	-	Yes	n/a	n/a
Real-Music Ringers	n/a	Yes	-	n/a	n/a
Data & Network
Data Tethering	n/a	-	Yes	n/a	n/a
External Antenna Jack	n/a	Yes	-	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	-	Yes	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	Yes	n/a	n/a
Music
FM Radio	Yes	-	-	Yes	-
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	n/a	-	-	n/a	n/a
Photo & Video
TV Output	-	-	-	Yes	-
Video Calling	n/a	-	-	n/a	n/a
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	-	-	n/a	n/a
Voice Memo	n/a	Yes	-	n/a	n/a
Software
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	Yes	Yes	n/a	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	-	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Nokia E66	Motorola C290	Siemens C56	HTC EVO 4G	ZTE Citrine
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia E66	Motorola C290	Siemens C56	HTC EVO 4G	ZTE Citrine