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Phone	Samsung SGH-X660	Nokia 6650 fold	Samsung Transform Ultra	Motorola Sidekick Slide	LG Aristo / Aristo 2
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.2" diag. 4 : 3	3.5" diag. 5 : 3	?	5" diag. 16 : 9
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	720 x 1280 pixels (~294 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	800 mAh	1,500 mAh	1,500 mAh	?	2,410 mAh
Processor	?	369 MHz ARM 11	1 GHz Qualcomm Snapdragon S2 MSM8655	225 MHz TI OMAP 850	1.4 GHz Qualcomm Snapdragon 425 (MSM8917)
RAM	?	?	?	?	2 GB *
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	Yes	2 megapixel	3 megapixel	1 megapixel	13 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QVGA (320 x 240)	VGA (640 x 480)	-	1080p HD
Front Camera	-	-	Yes	-	5 megapixel
Weight	2.75 oz (78g)	3.95 oz (112g)	4.9 oz (139g)	5.3 oz (150g)	5.01 oz (142g)
Dimensions	3.52" x 1.77" x 0.85" (89 x 45 x 21.6 mm)	3.93" x 1.86" x 0.64" (100 x 47 x 16.2 mm)	4.5" x 2.4" x 0.55" (114 x 61 x 14 mm)	4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm)	5.7" x 2.84" x 0.32" (145 x 72 x 8.1 mm)
Form Factor	Clamshell	Clamshell	Slide	Slide	Slab
Platform / OS	(proprietary)	S60 (Symbian)	Android	(proprietary)	Android
Network Bands	GSM: 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 800, 850, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	GPRS	HSDPA 3.6	EVDO rA	EDGE	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	-	n/a	n/a	-	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	Yes	n/a
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M4 (very compatible)	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	-	n/a
TTY/TDD (Digital)	-	-	Yes	-	Yes
Alerts
Extra Display	Yes	Yes	-	-	-
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	-	n/a	n/a	-	n/a
USB	-	Yes Micro-USB	Yes	Yes	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 a,b,g,n)	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	Yes	n/a
Voice Dialing	-	n/a	n/a	-	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	Yes	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	-	n/a	n/a	-	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	-	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	Yes	-
Touch Screen	-	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	Yes	Yes
Messaging
Email Client	-	n/a	n/a	Yes	n/a
EMS / Picture Messaging	Yes	n/a	n/a	-	n/a
Instant Messaging	-	n/a	n/a	Yes	n/a
MMS	Yes	n/a	n/a	Yes	n/a
Text Messaging Templates	Yes	n/a	n/a	-	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	-	n/a	n/a	Yes	n/a
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	-	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	Yes	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	-	n/a
Software
Games	Yes	n/a	n/a	Yes	n/a
Java (J2ME)	Yes	n/a	n/a	Yes	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	-	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SGH-X660	Nokia 6650 fold	Samsung Transform Ultra	Motorola Sidekick Slide	LG Aristo / Aristo 2
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X660	Nokia 6650 fold	Samsung Transform Ultra	Motorola Sidekick Slide	LG Aristo / Aristo 2