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Phone	Nokia Lumia 810	Palm Treo 650 (CDMA)	Samsung SCH-A990	HTC Touch Pro2 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	4.3" diag. 5 : 3	?	?	3.6" diag. 5 : 3
Display Resolution & Type	480 x 800 pixels (~217 ppi) AMOLED	320 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?
Battery	1,800 mAh	?	1,000 mAh	1,500 mAh
Processor	1.5 GHz Qualcomm Snapdragon	312 MHz Intel XScale PXA270	?	528 MHz MSM7600
RAM	1 GB	?	?	?
Storage	8 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	8 megapixel	Yes	3 megapixel	3 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	1080p HD	QVGA (320 x 240)	?	?
Front Camera	1 megapixel	-	-	-
Weight	5.11 oz (145g)	6.3 oz (179g)	4.4 oz (125g)	6.35 oz (180g)
Dimensions	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm)
Form Factor	Slab	Slab	Clamshell	Slab
Platform / OS	Windows	Palm OS	(proprietary)	Windows Mobile Professional
Network Bands	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	HSPA+ 42	1xRTT	EVDO r0	EVDO rA
Features
Flashlight	-	-	Yes	-
GPS / Location	n/a	n/a	Yes	n/a
Accessibility
Adjustable Text Size	n/a	n/a	-	n/a
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	-	Yes M3 (mostly compatible)	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes
Alerts
Extra Display	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-
Mobile Hotspot	n/a	n/a	-	n/a
NFC	Yes	-	-	-
USB	Yes Micro-USB	-	Yes	Yes
Wi-Fi	Yes 4 (802.11 a,b,g,n)	-	-	Yes
Contacts
Picture ID	n/a	n/a	Yes	n/a
Ringer ID	n/a	n/a	Yes	n/a
Voice Dialing	n/a	n/a	Yes	n/a
Customization
Custom Graphics	n/a	n/a	Yes	n/a
Custom Ringtones	n/a	n/a	Yes	n/a
Real-Music Ringers	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	n/a
WAP / Web Browser	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes
Stylus	-	-	-	Yes
Text Keyboard, Hardware	-	Yes	-	Yes
Touch Screen	Yes Capacitive	Yes	-	Yes Resistive
Memory
Memory Card Slot	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	-	n/a
EMS / Picture Messaging	n/a	n/a	Yes	n/a
Instant Messaging	n/a	n/a	-	n/a
MMS	n/a	n/a	Yes	n/a
Text Messaging Templates	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	Yes
Music Player	n/a	n/a	Yes	n/a
Stereo Speakers	-	-	Yes	-
Photo & Video
TV Output	-	-	Yes	Yes
Power
Wireless Charging	Yes	-	-	-
Productivity
Alarm	n/a	n/a	Yes	n/a
Calculator	n/a	n/a	Yes	n/a
Calendar	n/a	n/a	Yes	n/a
To-Do List	n/a	n/a	-	n/a
Voice Memo	n/a	n/a	Yes	n/a
Software
BREW	n/a	n/a	Yes	n/a
Games	n/a	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	n/a	-	n/a
Speaker Phone	Yes	Yes	Yes	Yes
	Nokia Lumia 810	Palm Treo 650 (CDMA)	Samsung SCH-A990	HTC Touch Pro2 (CDMA)
	X >	< X >	< X >	< X

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


Phone	Nokia Lumia 810	Palm Treo 650 (CDMA)	Samsung SCH-A990	HTC Touch Pro2 (CDMA)