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Phone	Samsung Knack U310	Apple iPhone 4 (GSM)	HTC Arrive / 7 Pro (CDMA)	Cricket Debut Smart	Samsung MM-A900 / SPH-A900 / Ace
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	3.6" diag. 5 : 3	5.5" diag. 18 : 9	?
Display Resolution & Type	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	60 Hz	?
Battery	1,000 mAh	?	1,500 mAh	2,500 mAh	?
Processor	?	Apple A4	1 GHz Qualcomm Snapdragon	2 GHz MediaTek Helio A22 (MT6761V)	?
RAM	?	?	?	3 GB	?
Storage	? raw hardware	32 GB *	16 GB	32 GB	? raw hardware
Main Camera	-	5 megapixel	5 megapixel	5 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	720p HD	1080p HD	?
Front Camera	-	Yes	-	5 megapixel	-
Weight	3.63 oz (103g)	4.8 oz (136g)	6.5 oz (184g)	5.64 oz (160g)	3.9 oz (111g)
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)	4.63" x 2.32" x 0.61" (118 x 59 x 15.5 mm)	5.87" x 2.83" x 0.38" (149 x 72 x 9.7 mm)	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)
Form Factor	Clamshell	Slab	Slide	Slab	Clamshell
Platform / OS	(proprietary)	iOS	Windows	Android	(proprietary)
Network Bands	CDMA: 850, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 2, 4, 5	CDMA: 850, 1900
Data Technology	-	HSPA 7.2	EVDO rA	LTE (Cat 4)	EVDO r0
Features
Flashlight	-	-	-	Yes	-
GPS / Location	Yes	n/a	n/a	n/a	Yes
Accessibility
Adjustable Text Size	Yes	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)	-
Multiple Languages	Yes	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	n/a	-
USB	-	Yes	Yes	Yes USB Type C	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 a,ac,b,g,n)	-
Contacts
Picture ID	-	n/a	n/a	n/a	Yes
Ringer ID	-	n/a	n/a	n/a	Yes
Voice Dialing	Yes	n/a	n/a	n/a	Yes
Customization
Custom Graphics	-	n/a	n/a	n/a	Yes
Custom Ringtones	-	n/a	n/a	n/a	Yes
Real-Music Ringers	-	n/a	n/a	n/a	-
Data & Network
Data Tethering	-	n/a	n/a	n/a	Yes
WAP / Web Browser	-	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	-	Yes Capacitive	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	-	-	Yes	-
Messaging
Email Client	-	n/a	n/a	n/a	-
EMS / Picture Messaging	Yes	n/a	n/a	n/a	-
MMS	-	n/a	n/a	n/a	-
Text Messaging Templates	-	n/a	n/a	n/a	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	-
Music Player	-	n/a	n/a	n/a	Yes
Photo & Video
TV Output	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	n/a	n/a	Yes
Calculator	Yes	n/a	n/a	n/a	Yes
Calendar	Yes	n/a	n/a	n/a	Yes
To-Do List	-	n/a	n/a	n/a	Yes
Voice Memo	-	n/a	n/a	n/a	Yes
Software
Games	-	n/a	n/a	n/a	Yes
Java (J2ME)	-	n/a	n/a	n/a	Yes
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung Knack U310	Apple iPhone 4 (GSM)	HTC Arrive / 7 Pro (CDMA)	Cricket Debut Smart	Samsung MM-A900 / SPH-A900 / Ace
	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)	HTC Arrive / 7 Pro (CDMA)	Cricket Debut Smart	Samsung MM-A900 / SPH-A900 / Ace