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Phone	Cricket Debut S2 / AT&T Calypso 4	Ericsson T66	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	ZTE Grand X 3	Nokia N-Gage QD
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	?	?	5.5" diag. 16 : 9	?
Display Resolution & Type	720 x 1560 pixels (~282 ppi) LCD (TFT/TFD)	?	240 x 320 pixels LCD (TFT/TFD)	720 x 1280 pixels (~267 ppi) LCD (TFT/TFD)	176 x 208 pixels LCD (Color)
Display Refresh	60 Hz	?	?	60 Hz	?
Battery	3,000 mAh	?	1,490 mAh	3,080 mAh	1,070 mAh
Processor	2 GHz MediaTek Helio A22 (MT6761WB)	?	400 MHz Intel XScale	1.3 GHz Qualcomm Snapdragon 210 (MSM8909)	?
RAM	3 GB	?	?	2 GB	?
Storage	64 GB	? raw hardware	? raw hardware	16 GB	? raw hardware
Main Camera	8 megapixel	-	Yes	8 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	QCIF (176 x 144)	720p HD	-
Front Camera	5 megapixel	-	-	2 megapixel	-
Weight	5.64 oz (160g)	2.08 oz (59g)	7.41 oz (210g)	6 oz (170g)	5.04 oz (143g)
Dimensions	6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm)	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	6.07" x 2.99" x 0.37" (154 x 76 x 9.4 mm)	4.65" x 2.68" x 0.87" (118 x 68 x 22.1 mm)
Form Factor	Slab	Slab	Slide	Slab	Slab
Platform / OS	Android	(proprietary)	Windows Mobile Professional	Android	S60 (Symbian)
Network Bands	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 1900 *
Data Technology	LTE (Cat 4)	-	GPRS	LTE (Cat 4)	GPRS
Features
Flashlight	Yes	-	-	Yes	-
Accessibility
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	-	-	Yes M4, T3 (mostly tele-coil compatible)	-
Multiple Languages	n/a	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	-	-	-	Yes	-
Alerts
Ringer Profiles	-	Yes	-	-	Yes
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Infrared (IR)	-	-	Yes	-	-
USB	Yes USB Type C	-	Yes	Yes USB Type C	-
Wi-Fi	Yes 5 (802.11 a,ac,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	-	n/a	n/a	n/a
Customization
Custom Graphics	n/a	Yes	n/a	n/a	n/a
Custom Ringtones	n/a	Yes	n/a	n/a	n/a
Data & Network
Data Tethering	n/a	-	n/a	n/a	n/a
WAP / Web Browser	n/a	Yes	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	-
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	Yes Capacitive	-	Yes	Yes Capacitive	-
Memory
Memory Card Slot	Yes	-	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
Text Messaging Templates	n/a	Yes	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	Yes	-
Music Player	n/a	-	n/a	n/a	n/a
Power
Fast Charging	Yes	-	-	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	Yes	n/a	n/a	n/a
Voice Memo	n/a	-	n/a	n/a	n/a
Software
Games	n/a	Yes	n/a	n/a	n/a
Java (J2ME)	n/a	-	n/a	n/a	n/a
Voice
HD Voice	Yes	-	-	Yes	-
Headset Jack (2.5 mm)	n/a	-	n/a	n/a	n/a
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Cricket Debut S2 / AT&T Calypso 4	Ericsson T66	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	ZTE Grand X 3	Nokia N-Gage QD
	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	Ericsson T66	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	ZTE Grand X 3	Nokia N-Gage QD