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Phone	Ericsson T66	BlackBerry 8830	Palm Pre (CDMA)	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Cricket Debut S2 / AT&T Calypso 4
Current U.S. Carriers	(none)	(none)	(none)	(none)	AT&T
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	3.1" diag. 5 : 3	?	6.1" diag. 19.5 : 9
Display Resolution & Type	?	320 x 240 pixels LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	720 x 1560 pixels (~282 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	1,400 mAh	1,150 mAh	1,490 mAh	3,000 mAh
Processor	?	?	TI OMAP 3430	400 MHz Intel XScale	2 GHz MediaTek Helio A22 (MT6761WB)
RAM	?	?	?	?	3 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	64 GB
Main Camera	-	-	3 megapixel	Yes	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	?	QCIF (176 x 144)	?
Front Camera	-	-	-	-	5 megapixel
Weight	2.08 oz (59g)	4.6 oz (130g)	4.76 oz (135g)	7.41 oz (210g)	5.64 oz (160g)
Dimensions	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	4.49" x 2.6" x 0.55" (114 x 66 x 14 mm)	3.9" x 2.3" x 0.67" (99 x 58 x 17 mm)	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm)
Form Factor	Slab	Slab	Slide	Slide	Slab
Platform / OS	(proprietary)	BlackBerry OS	webOS	Windows Mobile Professional	Android
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1900 GSM: 900, 1800 *	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8
Data Technology	-	EVDO r0	EVDO rA	GPRS	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	-	n/a	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	Yes M4 (very compatible)	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	-	-
Alerts
Ringer Profiles	Yes	Yes	-	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	Yes	-
USB	-	Yes	Yes Micro-USB	Yes	Yes USB Type C
Wi-Fi	-	-	Yes 802.11 b,g	Yes	Yes 5 (802.11 a,ac,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	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	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	Yes	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	Yes	Yes	-
Touch Screen	-	-	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	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	Yes	n/a	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
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	Yes	n/a	n/a	n/a	n/a
Voice Memo	-	n/a	n/a	n/a	n/a
Software
Games	Yes	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	n/a	n/a	n/a
Push-To-Talk	-	Yes *	-	-	-
Speaker Phone	-	Yes	Yes	Yes	Yes
	* Some versions only
	Ericsson T66	BlackBerry 8830	Palm Pre (CDMA)	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Cricket Debut S2 / AT&T Calypso 4
	X >	< X >	< X >	< X >	< X

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


Phone	Ericsson T66	BlackBerry 8830	Palm Pre (CDMA)	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	Cricket Debut S2 / AT&T Calypso 4