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Phone	Samsung SPH-i550	Samsung SCH-A610	Samsung Sway U650	Cricket Debut S2 / AT&T Calypso 4	HTC Touch Pro2 (GSM) / Tilt 2
Current U.S. Carriers	(none)	(none)	(none)	AT&T Cricket	(none)
Global Availability	Not yet released	Released	Released	Released	Released
Display Size	?	?	2.2" diag. 4 : 3	6.1" diag. 19.5 : 9	3.6" diag. 5 : 3
Display Resolution & Type	320 x 320 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	720 x 1560 pixels (~282 ppi) LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	?	1,300 mAh	?	3,000 mAh	1,500 mAh
Processor	200 MHz Motorola MX-1	?	?	2 GHz MediaTek Helio A22 (MT6761WB)	528 MHz Qualcomm MSM7200A
RAM	?	?	?	3 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	64 GB	? raw hardware
Main Camera	1 megapixel	Yes	2 megapixel	8 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	?	?	?
Front Camera	-	-	-	5 megapixel	-
Weight	?	4.23 oz (120g)	3.56 oz (101g)	5.64 oz (160g)	6.61 oz (187g)
Dimensions	3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm)	3.5" x 1.9" x 0.9" (89 x 48 x 22.9 mm)	4.15" x 1.96" x 0.47" (105 x 50 x 11.9 mm)	6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm)	4.59" x 2.36" x 0.68" (117 x 60 x 17.3 mm)
Form Factor	Clamshell	Clamshell	Slide	Slab	Slab
Platform / OS	Palm OS	(proprietary)	(proprietary)	Android	Windows Mobile Professional
Network Bands	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 *
Data Technology	1xRTT	1xRTT	1xRTT	LTE (Cat 4)	HSPA 7.2
Features
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	Yes	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	-	Yes	n/a	n/a
Hearing Aid Compatible	-	-	Yes M4 (very compatible)	Yes M4, T4 (very tele-coil compatible)	-
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	-
Connectivity
Bluetooth	-	-	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
USB	-	-	Yes	Yes USB Type C	Yes
Wi-Fi	-	-	-	Yes 5 (802.11 a,ac,b,g,n)	Yes 802.11 b,g
Contacts
Picture ID	n/a	Yes	Yes	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	Yes	Yes	n/a	n/a
Customization
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	-	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	-	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Stylus	-	-	-	-	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	Yes	-	-	Yes Capacitive	Yes
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	n/a	-	Yes	n/a	n/a
EMS / Picture Messaging	n/a	Yes	Yes	n/a	n/a
Instant Messaging	n/a	-	Yes	n/a	n/a
MMS	n/a	Yes	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	-	Yes	-
Music Player	n/a	-	Yes	n/a	n/a
Photo & Video
TV Output	-	-	-	-	Yes
Video Calling	n/a	-	-	n/a	n/a
Power
Fast Charging	-	-	-	Yes	-
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	Yes	-	n/a	n/a
Voice Memo	n/a	Yes	Yes	n/a	n/a
Software
BREW	n/a	Yes	Yes	n/a	n/a
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	-	-	n/a	n/a
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	n/a	Yes	-	n/a	n/a
Push-To-Talk	-	-	-	-	Yes *
Speaker Phone	-	-	Yes	Yes	Yes
	* Some versions only
	Samsung SPH-i550	Samsung SCH-A610	Samsung Sway U650	Cricket Debut S2 / AT&T Calypso 4	HTC Touch Pro2 (GSM) / Tilt 2
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-i550	Samsung SCH-A610	Samsung Sway U650	Cricket Debut S2 / AT&T Calypso 4	HTC Touch Pro2 (GSM) / Tilt 2