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Phone	Samsung Freeform 4 / Comment 2	Nokia Lumia 810	Nokia 6555	Samsung SPH-A660 / VI660	Palm Treo 650 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	4.3" diag. 5 : 3	2" diag. 4 : 3	?	?
Display Resolution & Type	320 x 240 pixels (~167 ppi) LCD (Color)	480 x 800 pixels (~217 ppi) AMOLED	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	320 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	1,000 mAh	1,800 mAh	1,020 mAh	?	?
Processor	?	1.5 GHz Qualcomm Snapdragon	?	?	312 MHz Intel XScale PXA270
RAM	?	1 GB	?	?	?
Storage	? raw hardware	8 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	2 megapixel	8 megapixel	1 megapixel	-	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	1080p HD	QCIF (176 x 144)	-	QVGA (320 x 240)
Front Camera	-	1 megapixel	-	-	-
Weight	3.35 oz (95g)	5.11 oz (145g)	3.42 oz (97g)	3.54 oz (100g)	6.3 oz (179g)
Dimensions	4.38" x 2.38" x 0.42" (111 x 60 x 10.7 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	3.92" x 1.74" x 0.77" (100 x 44 x 19.6 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)
Form Factor	Slab	Slab	Clamshell	Clamshell	Slab
Platform / OS	(proprietary)	Windows	(proprietary)	(proprietary)	Palm OS
Network Bands	CDMA: 850, 1700, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900
Data Technology	1xRTT	HSPA+ 42	WCDMA (UMTS)	1xRTT	1xRTT
Features
GPS / Location	Yes	n/a	-	Yes	n/a
Accessibility
Adjustable Text Size	Yes	n/a	Yes	-	n/a
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	-
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	-	n/a	-	-	n/a
NFC	-	Yes	-	-	-
USB	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB	-	-
Wi-Fi	-	Yes 4 (802.11 a,b,g,n)	-	-	-
Contacts
Picture ID	Yes	n/a	Yes	Yes	n/a
Ringer ID	Yes	n/a	Yes	Yes	n/a
Voice Dialing	Yes	n/a	Yes	Yes	n/a
Customization
Custom Graphics	Yes	n/a	Yes	Yes	n/a
Custom Ringtones	Yes	n/a	Yes	Yes	n/a
Real-Music Ringers	Yes	n/a	Yes	-	n/a
Data & Network
Data Tethering	-	n/a	Yes	Yes	n/a
WAP / Web Browser	Yes	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	-	Yes Capacitive	-	-	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	-	n/a	Yes	-	n/a
Instant Messaging	-	n/a	Yes	-	n/a
MMS	Yes	n/a	Yes	-	n/a
Text Messaging Templates	Yes	n/a	Yes	-	n/a
Music
Headphone Jack (3.5mm)	Yes	Yes	-	-	-
Music Player	Yes	n/a	Yes	-	n/a
Power
Wireless Charging	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	-	n/a	Yes	Yes	n/a
Voice Memo	Yes	n/a	Yes	Yes	n/a
Software
BREW	Yes	n/a	-	-	n/a
Games	Yes	n/a	Yes	Yes	n/a
Java (J2ME)	-	n/a	Yes	Yes	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	Yes	Yes	n/a
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	-	Yes
	* Some versions only
	Samsung Freeform 4 / Comment 2	Nokia Lumia 810	Nokia 6555	Samsung SPH-A660 / VI660	Palm Treo 650 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Freeform 4 / Comment 2	Nokia Lumia 810	Nokia 6555	Samsung SPH-A660 / VI660	Palm Treo 650 (CDMA)