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Phone	Samsung Knack U310	Apple iPhone 4 (GSM)	Cricket Debut Smart	Samsung Nexus S 4G	Sony Ericsson P910
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	5.5" diag. 18 : 9	4" diag. 5 : 3	?
Display Resolution & Type	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	208 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	60 Hz	?
Battery	1,000 mAh	?	2,500 mAh	1,500 mAh	?
Processor	?	Apple A4	2 GHz MediaTek Helio A22 (MT6761V)	1 GHz Samsung Hummingbird Cortex A8	?
RAM	?	?	3 GB	?	?
Storage	? raw hardware	32 GB *	32 GB	16 GB	? raw hardware
Main Camera	-	5 megapixel	5 megapixel	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	1080p HD	WVGA / 480p	QCIF (176 x 144)
Front Camera	-	Yes	5 megapixel	Yes	-
Weight	3.63 oz (103g)	4.8 oz (136g)	5.64 oz (160g)	4.62 oz (131g)	5.47 oz (155g)
Dimensions	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	5.87" x 2.83" x 0.38" (149 x 72 x 9.7 mm)	4.88" x 2.48" x 0.44" (124 x 63 x 11.2 mm)	4.53" x 2.28" x 1.02" (115 x 58 x 25.9 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Flip
Platform / OS	(proprietary)	iOS	Android	Android	UIQ (Symbian)
Network Bands	CDMA: 850, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 2, 4, 5	4G WiMAX: 41 CDMA: 850, 1900	GSM: 850, 1800, 1900 *
Data Technology	-	HSPA 7.2	LTE (Cat 4)	WiMAX	GPRS
Features
Flashlight	-	-	Yes	-	-
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 M3, T3 (mostly tele-coil compatible)	Yes M4 (very 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
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	-	n/a	n/a	n/a	n/a
NFC	-	-	-	Yes	-
USB	-	Yes	Yes USB Type C	Yes Micro-USB	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 a,ac,b,g,n)	Yes 4 (802.11 b,g,n)	-
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	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	Yes Capacitive	Yes Capacitive	Yes Capacitive	Yes
Memory
Memory Card Slot	-	-	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	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
HD Voice	-	-	Yes	-	-
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	Apple iPhone 4 (GSM)	Cricket Debut Smart	Samsung Nexus S 4G	Sony Ericsson P910
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Knack U310	Apple iPhone 4 (GSM)	Cricket Debut Smart	Samsung Nexus S 4G	Sony Ericsson P910