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Phone	Samsung Sidekick 4G	Ericsson T66	Samsung Knack U310	Nokia 6125	Nokia Lumia 810
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.5" diag. 5 : 3	?	2.2" diag. 4 : 3	?	4.3" diag. 5 : 3
Display Resolution & Type	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	?	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED
Display Refresh	60 Hz	?	?	?	?
Battery	?	?	1,000 mAh	820 mAh	1,800 mAh
Processor	1 GHz Samsung Hummingbird Cortex A8	?	?	?	1.5 GHz Qualcomm Snapdragon
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	3 megapixel	-	-	1 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	WVGA / 480p	-	-	QCIF (176 x 144)	1080p HD
Front Camera	Yes	-	-	-	1 megapixel
Weight	5.7 oz (162g)	2.08 oz (59g)	3.63 oz (103g)	3.46 oz (98g)	5.11 oz (145g)
Dimensions	5" x 2.42" x 0.6" (127 x 61 x 15.2 mm)	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	3.54" x 1.81" x 0.93" (90 x 46 x 23.6 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)
Form Factor	Slide	Slab	Clamshell	Clamshell	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Windows
Network Bands	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSPA+ 21	-	-	EDGE	HSPA+ 42
Features
GPS / Location	n/a	-	Yes	-	n/a
Accessibility
Adjustable Text Size	n/a	-	Yes	-	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)	-	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Extra Display	-	-	Yes	Yes	-
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	Yes	-	-	Yes	Yes
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	n/a	-	-	-	n/a
NFC	-	-	-	-	Yes
USB	Yes Micro-USB	-	-	Yes	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	n/a	-	-	Yes	n/a
Ringer ID	n/a	-	-	-	n/a
Voice Dialing	n/a	-	Yes	Yes	n/a
Customization
Custom Graphics	n/a	Yes	-	Yes	n/a
Custom Ringtones	n/a	Yes	-	Yes	n/a
Real-Music Ringers	n/a	-	-	Yes	n/a
Data & Network
Data Tethering	n/a	-	-	Yes	n/a
WAP / Web Browser	n/a	Yes	-	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	Yes	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	-	Yes	Yes
Messaging
Email Client	n/a	-	-	Yes	n/a
EMS / Picture Messaging	n/a	Yes	Yes	-	n/a
Instant Messaging	n/a	-	-	Yes	n/a
MMS	n/a	-	-	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	-	-	-	-
Power
Wireless Charging	-	-	-	-	Yes
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	-	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	Yes	-	Yes	n/a
Voice Memo	n/a	-	-	Yes	n/a
Software
Games	n/a	Yes	-	Yes	n/a
Java (J2ME)	n/a	-	-	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	-	Yes	-	n/a
Push-To-Talk	-	-	-	Yes *	-
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Samsung Sidekick 4G	Ericsson T66	Samsung Knack U310	Nokia 6125	Nokia Lumia 810
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Sidekick 4G	Ericsson T66	Samsung Knack U310	Nokia 6125	Nokia Lumia 810