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Phone	Samsung Knack U310	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Apple iPhone 4 (GSM)	Nokia N-Gage QD	BlackBerry Curve 3G 9330
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.2" diag. 4 : 3	?	3.5" diag. 5 : 3	?	2.5" diag. 4 : 3
Display Resolution & Type	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	176 x 208 pixels LCD (Color)	320 x 240 pixels (~160 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	?
Battery	1,000 mAh	1,490 mAh	?	1,070 mAh	1,150 mAh
Processor	?	400 MHz Intel XScale	Apple A4	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	32 GB *	? raw hardware	? raw hardware
Main Camera	-	Yes	5 megapixel	-	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	QCIF (176 x 144)	720p HD	-	?
Front Camera	-	-	Yes	-	-
Weight	3.63 oz (103g)	7.41 oz (210g)	4.8 oz (136g)	5.04 oz (143g)	3.7 oz (105g)
Dimensions	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4.65" x 2.68" x 0.87" (118 x 68 x 22.1 mm)	4.29" x 2.36" x 0.55" (109 x 60 x 14 mm)
Form Factor	Clamshell	Slide	Slab	Slab	Slab
Platform / OS	(proprietary)	Windows Mobile Professional	iOS	S60 (Symbian)	BlackBerry OS
Network Bands	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	GSM: 850, 1900 *	CDMA: 850, 1900
Data Technology	-	GPRS	HSPA 7.2	GPRS	EVDO r0
Features
GPS / Location	Yes	n/a	n/a	n/a	n/a
Accessibility
Adjustable Text Size	Yes	n/a	n/a	n/a	n/a
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	-	-	-	Yes	Yes
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	-	n/a	n/a	n/a	n/a
USB	-	Yes	Yes	-	Yes Micro-USB
Wi-Fi	-	Yes	Yes 4 (802.11 b,g,n)	-	Yes 802.11 b,g
Contacts
Picture ID	-	n/a	n/a	n/a	n/a
Ringer ID	-	n/a	n/a	n/a	n/a
Voice Dialing	Yes	n/a	n/a	n/a	n/a
Customization
Custom Graphics	-	n/a	n/a	n/a	n/a
Custom Ringtones	-	n/a	n/a	n/a	n/a
Real-Music Ringers	-	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	-	n/a	n/a	n/a	n/a
WAP / Web Browser	-	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	-	Yes
Text Keyboard, Hardware	-	Yes	-	-	Yes
Touch Screen	-	Yes	Yes Capacitive	-	-
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	-	n/a	n/a	n/a	n/a
EMS / Picture Messaging	Yes	n/a	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a	n/a
MMS	-	n/a	n/a	n/a	n/a
Text Messaging Templates	-	n/a	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	-	n/a	n/a	n/a	n/a
Photo & Video
TV Output	-	-	Yes	-	-
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	-	n/a	n/a	n/a	n/a
Voice Memo	-	n/a	n/a	n/a	n/a
Software
Games	-	n/a	n/a	n/a	n/a
Java (J2ME)	-	n/a	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung Knack U310	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Apple iPhone 4 (GSM)	Nokia N-Gage QD	BlackBerry Curve 3G 9330
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Knack U310	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Apple iPhone 4 (GSM)	Nokia N-Gage QD	BlackBerry Curve 3G 9330