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Phone	Samsung SCH-A990	Nokia N81	Motorola T720 (CDMA)	HTC Hero (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	?	2.4" diag. 4 : 3	?	3.2" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	120 x 160 pixels LCD (STN)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz
Battery	1,000 mAh	1,050 mAh	?	1,500 mAh
Processor	?	369 MHz ARM 11	?	528 MHz MSM7600
RAM	?	?	?	?
Storage	? raw hardware	8 GB *	? raw hardware	? raw hardware
Main Camera	3 megapixel	2 megapixel	-	5 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	?	VGA (640 x 480)	-	QVGA (320 x 240)
Front Camera	-	-	-	-
Weight	4.4 oz (125g)	4.94 oz (140g)	3.95 oz (112g)	4.5 oz (128g)
Dimensions	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)	3.5" x 1.87" x 0.91" (89 x 47 x 23.1 mm)	4.46" x 2.22" x 0.54" (113 x 56 x 13.7 mm)
Form Factor	Clamshell	Slide	Clamshell	Slab
Platform / OS	(proprietary)	S60 (Symbian)	(proprietary)	Android
Network Bands	CDMA: 850, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900
Data Technology	EVDO r0	EDGE	1xRTT	EVDO rA
Features
Flashlight	Yes	-	-	-
GPS / Location	Yes	n/a	Yes	n/a
Accessibility
Hearing Aid Compatible	Yes M3 (mostly compatible)	-	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes
Alerts
Extra Display	Yes	-	Yes	-
Ringer Profiles	-	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	-	Yes
USB	Yes	Yes Micro-USB	Yes	Yes Mini-USB
Wi-Fi	-	Yes 802.11 b,g	-	Yes 802.11 b,g
Contacts
Picture ID	Yes	n/a	-	n/a
Ringer ID	Yes	n/a	Yes	n/a
Voice Dialing	Yes	n/a	Yes	n/a
Customization
Changeable Body Plates	-	-	Yes	-
Custom Graphics	Yes	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	Yes	n/a
Real-Music Ringers	Yes	n/a	-	n/a
Data & Network
Data Tethering	Yes	n/a	Yes	n/a
WAP / Web Browser	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes
Touch Screen	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes *	-	Yes
Messaging
Email Client	-	n/a	Yes	n/a
EMS / Picture Messaging	Yes	n/a	Yes	n/a
Instant Messaging	-	n/a	-	n/a
MMS	Yes	n/a	-	n/a
Text Messaging Templates	Yes	n/a	Yes	n/a
Music
FM Radio	-	Yes	-	-
Headphone Jack (3.5mm)	-	Yes	-	Yes
Music Player	Yes	n/a	-	n/a
Stereo Speakers	Yes	Yes	-	-
Photo & Video
TV Output	Yes	-	-	-
Video Calling	-	n/a	-	n/a
Productivity
Alarm	Yes	n/a	-	n/a
Calculator	Yes	n/a	Yes	n/a
Calendar	Yes	n/a	Yes	n/a
To-Do List	-	n/a	-	n/a
Voice Memo	Yes	n/a	Yes	n/a
Software
BREW	Yes	n/a	Yes *	n/a
Games	Yes	n/a	Yes	n/a
Java (J2ME)	-	n/a	-	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	Yes	n/a
Push-To-Talk	-	Yes *	-	-
Speaker Phone	Yes	Yes	-	Yes
	* Some versions only
	Samsung SCH-A990	Nokia N81	Motorola T720 (CDMA)	HTC Hero (CDMA)
	X >	< X >	< X >	< X

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


Phone	Samsung SCH-A990	Nokia N81	Motorola T720 (CDMA)	HTC Hero (CDMA)