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Phone	Cricket Debut S2 / AT&T Calypso 4	Samsung Knack U310	Huawei W1	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	HTC Arrive / 7 Pro (CDMA)
Current U.S. Carriers	AT&T	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	6.1" diag. 19.5 : 9	2.2" diag. 4 : 3	4" diag. 5 : 3	?	3.6" diag. 5 : 3
Display Resolution & Type	720 x 1560 pixels (~282 ppi) LCD (TFT/TFD)	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	?
Battery	3,000 mAh	1,000 mAh	1,950 mAh	1,490 mAh	1,500 mAh
Processor	2 GHz MediaTek Helio A22 (MT6761WB)	?	1.2 GHz Qualcomm Snapdragon 400 MSM8230	400 MHz Intel XScale	1 GHz Qualcomm Snapdragon
RAM	3 GB	?	512 MB	?	?
Storage	64 GB	? raw hardware	4 GB	? raw hardware	16 GB
Main Camera	8 megapixel	-	5 megapixel	Yes	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	720p HD	QCIF (176 x 144)	720p HD
Front Camera	5 megapixel	-	Yes	-	-
Weight	5.64 oz (160g)	3.63 oz (103g)	4.41 oz (125g)	7.41 oz (210g)	6.5 oz (184g)
Dimensions	6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm)	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	4.84" x 2.5" x 0.41" (123 x 64 x 10.4 mm)	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	4.63" x 2.32" x 0.61" (118 x 59 x 15.5 mm)
Form Factor	Slab	Clamshell	Slab	Slide	Slide
Platform / OS	Android	(proprietary)	Windows	Windows Mobile Professional	Windows
Network Bands	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8	CDMA: 850, 1900	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	LTE (Cat 4)	-	HSPA+ 21	GPRS	EVDO rA
Features
Flashlight	Yes	-	-	-	-
GPS / Location	n/a	Yes	n/a	n/a	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	n/a	n/a
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	-	-
Multiple Languages	n/a	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	-	Yes	-	-	Yes
Alerts
Extra Display	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Infrared (IR)	-	-	-	Yes	-
USB	Yes USB Type C	-	Yes Micro-USB	Yes	Yes
Wi-Fi	Yes 5 (802.11 a,ac,b,g,n)	-	Yes 4 (802.11 b,g,n)	Yes	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	n/a	Yes	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	n/a	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	Yes
Touch Screen	Yes Capacitive	-	Yes Capacitive	Yes	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	Yes	-
Messaging
Email Client	n/a	-	n/a	n/a	n/a
EMS / Picture Messaging	n/a	Yes	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
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	n/a	-	n/a	n/a	n/a
Power
Fast Charging	Yes	-	-	-	-
Productivity
Alarm	n/a	Yes	n/a	n/a	n/a
Calculator	n/a	Yes	n/a	n/a	n/a
Calendar	n/a	Yes	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)	n/a	Yes	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Cricket Debut S2 / AT&T Calypso 4	Samsung Knack U310	Huawei W1	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	HTC Arrive / 7 Pro (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Cricket Debut S2 / AT&T Calypso 4	Samsung Knack U310	Huawei W1	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	HTC Arrive / 7 Pro (CDMA)