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Phone	Samsung Sidekick 4G	Palm Treo 650 (CDMA)	Samsung MM-A900 / SPH-A900 / Ace	Nokia Lumia 810	LG VX-8550 Chocolate
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.5" diag. 5 : 3	?	?	4.3" diag. 5 : 3	?
Display Resolution & Type	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	?
Battery	?	?	?	1,800 mAh	800 mAh
Processor	1 GHz Samsung Hummingbird Cortex A8	312 MHz Intel XScale PXA270	?	1.5 GHz Qualcomm Snapdragon	?
RAM	?	?	?	1 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	8 GB	? raw hardware
Main Camera	3 megapixel	Yes	1 megapixel	8 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	WVGA / 480p	QVGA (320 x 240)	?	1080p HD	QCIF (176 x 144)
Front Camera	Yes	-	-	1 megapixel	-
Weight	5.7 oz (162g)	6.3 oz (179g)	3.9 oz (111g)	5.11 oz (145g)	3.24 oz (92g)
Dimensions	5" x 2.42" x 0.6" (127 x 61 x 15.2 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	3.85" x 1.87" x 0.67" (98 x 47 x 17 mm)
Form Factor	Slide	Slab	Clamshell	Slab	Slide
Platform / OS	Android	Palm OS	(proprietary)	Windows	(proprietary)
Network Bands	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	HSPA+ 21	1xRTT	EVDO r0	HSPA+ 42	EVDO r0
Features
GPS / Location	n/a	n/a	Yes	n/a	Yes
Accessibility
Adjustable Text Size	n/a	n/a	-	n/a	-
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	-	Yes M3, T4 (very tele-coil compatible)	Yes M4 (very compatible)
Multiple Languages	n/a	n/a	Yes	n/a	Yes
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	n/a	n/a	-	n/a	-
NFC	-	-	-	Yes	-
USB	Yes Micro-USB	-	Yes	Yes Micro-USB	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	Yes 4 (802.11 a,b,g,n)	-
Contacts
Picture ID	n/a	n/a	Yes	n/a	Yes
Ringer ID	n/a	n/a	Yes	n/a	Yes
Voice Dialing	n/a	n/a	Yes	n/a	Yes
Customization
Custom Graphics	n/a	n/a	Yes	n/a	Yes
Custom Ringtones	n/a	n/a	Yes	n/a	Yes
Real-Music Ringers	n/a	n/a	-	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	Yes
WAP / Web Browser	n/a	n/a	Yes	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	Yes	-	-	-
Touch Screen	Yes	Yes	-	Yes Capacitive	-
Memory
Memory Card Slot	Yes	Yes	-	Yes	Yes
Messaging
Email Client	n/a	n/a	-	n/a	-
Instant Messaging	n/a	n/a	-	n/a	-
MMS	n/a	n/a	-	n/a	Yes
Text Messaging Templates	n/a	n/a	Yes	n/a	Yes
Music
Headphone Jack (3.5mm)	Yes	-	-	Yes	-
Music Player	n/a	n/a	Yes	n/a	Yes
Photo & Video
DLNA	Yes	-	-	-	-
Power
Wireless Charging	-	-	-	Yes	-
Productivity
Alarm	n/a	n/a	Yes	n/a	Yes
Calculator	n/a	n/a	Yes	n/a	Yes
Calendar	n/a	n/a	Yes	n/a	Yes
To-Do List	n/a	n/a	Yes	n/a	-
Voice Memo	n/a	n/a	Yes	n/a	Yes
Software
BREW	n/a	n/a	-	n/a	Yes
Games	n/a	n/a	Yes	n/a	Yes
Java (J2ME)	n/a	n/a	Yes	n/a	-
Voice
Headset Jack (2.5 mm)	n/a	n/a	Yes	n/a	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung Sidekick 4G	Palm Treo 650 (CDMA)	Samsung MM-A900 / SPH-A900 / Ace	Nokia Lumia 810	LG VX-8550 Chocolate
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Samsung Sidekick 4G	Palm Treo 650 (CDMA)	Samsung MM-A900 / SPH-A900 / Ace	Nokia Lumia 810	LG VX-8550 Chocolate