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Phone	Samsung Jack i637	Samsung Knack U310	Nokia Lumia 810	ZTE F160	Samsung Sidekick 4G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	2.2" diag. 4 : 3	4.3" diag. 5 : 3	2.4" diag. 4 : 3	3.5" diag. 5 : 3
Display Resolution & Type	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	1,480 mAh	1,000 mAh	1,800 mAh	900 mAh	?
Processor	?	?	1.5 GHz Qualcomm Snapdragon	?	1 GHz Samsung Hummingbird Cortex A8
RAM	?	?	1 GB	?	?
Storage	? raw hardware	? raw hardware	8 GB	? raw hardware	? raw hardware
Main Camera	3 megapixel	-	8 megapixel	3 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	1080p HD	QCIF (176 x 144)	WVGA / 480p
Front Camera	-	-	1 megapixel	-	Yes
Weight	3.6 oz (102g)	3.63 oz (103g)	5.11 oz (145g)	2.96 oz (84g)	5.7 oz (162g)
Dimensions	4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm)	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	4.57" x 1.93" x 0.44" (116 x 49 x 11.2 mm)	5" x 2.42" x 0.6" (127 x 61 x 15.2 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Slide
Platform / OS	Windows Mobile Standard	(proprietary)	Windows	(proprietary)	Android
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900
Data Technology	HSDPA 3.6	-	HSPA+ 42	HSDPA 3.6	HSPA+ 21
Features
GPS / Location	n/a	Yes	n/a	Yes	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	-	n/a
Hearing Aid Compatible	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	Yes	-	-	Yes	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Mobile Hotspot	n/a	-	n/a	-	n/a
NFC	-	-	Yes	-	-
USB	Yes	-	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	Yes 802.11 b,g	-	Yes 4 (802.11 a,b,g,n)	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	-	n/a	-	n/a
Ringer ID	n/a	-	n/a	Yes	n/a
Voice Dialing	n/a	Yes	n/a	-	n/a
Customization
Custom Graphics	n/a	-	n/a	Yes	n/a
Custom Ringtones	n/a	-	n/a	Yes	n/a
Real-Music Ringers	n/a	-	n/a	Yes	n/a
Data & Network
Data Tethering	n/a	-	n/a	-	n/a
WAP / Web Browser	n/a	-	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	-	-	Yes Capacitive	-	Yes
Memory
Memory Card Slot	Yes	-	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	Yes	n/a
MMS	n/a	-	n/a	Yes	n/a
Text Messaging Templates	n/a	-	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	n/a	-	n/a	Yes	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Power
Wireless Charging	-	-	Yes	-	-
Productivity
Alarm	n/a	Yes	n/a	Yes	n/a
Calculator	n/a	Yes	n/a	Yes	n/a
Calendar	n/a	Yes	n/a	Yes	n/a
To-Do List	n/a	-	n/a	-	n/a
Voice Memo	n/a	-	n/a	Yes	n/a
Software
Games	n/a	-	n/a	Yes	n/a
Java (J2ME)	n/a	-	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	-	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung Jack i637	Samsung Knack U310	Nokia Lumia 810	ZTE F160	Samsung Sidekick 4G
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Jack i637	Samsung Knack U310	Nokia Lumia 810	ZTE F160	Samsung Sidekick 4G