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Specifications
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Phone	Samsung SPH-i550	Samsung Trance SCH-U490	Motorola Droid Pro	Samsung SCH-A990	Motorola Droid 4
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Not yet released	Released	Released	Released	Released
Display Size	?	2.1" diag. 4 : 3	3.1" diag. 5 : 3	?	4" diag. 16 : 9
Display Resolution & Type	320 x 320 pixels LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	?	?	1,420 mAh	1,000 mAh	1,785 mAh
Processor	200 MHz Motorola MX-1	?	1 GHz TI OMAP3620	?	?
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	1 megapixel	1 megapixel	5 megapixel	3 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	WVGA / 480p	?	1080p HD
Front Camera	-	-	-	-	1 megapixel
Weight	?	3.53 oz (100g)	4.73 oz (134g)	4.4 oz (125g)	6.31 oz (179g)
Dimensions	3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)	4.69" x 2.36" x 0.46" (119 x 60 x 11.7 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	5" x 2.65" x 0.5" (127 x 67 x 12.7 mm)
Form Factor	Clamshell	Slide	Slab	Clamshell	Slide
Platform / OS	Palm OS	(proprietary)	Android	(proprietary)	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	WCDMA: 1, 2, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 13 CDMA: 850, 1900
Data Technology	1xRTT	1xRTT	EVDO rA	EVDO r0	LTE (Cat 3)
Features
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	Yes	n/a	Yes	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	-	n/a
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	-	n/a	-	n/a
USB	-	Yes	Yes Micro-USB	Yes	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	n/a	Yes	n/a
Ringer ID	n/a	Yes	n/a	Yes	n/a
Voice Dialing	n/a	Yes	n/a	Yes	n/a
Customization
Custom Graphics	n/a	Yes	n/a	Yes	n/a
Custom Ringtones	n/a	Yes	n/a	Yes	n/a
Real-Music Ringers	n/a	Yes	n/a	Yes	n/a
Data & Network
Data Tethering	n/a	Yes	n/a	Yes	n/a
WAP / Web Browser	n/a	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	Yes
Touch Screen	Yes	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	Yes	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	Yes	n/a	Yes	n/a
Text Messaging Templates	n/a	Yes	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	Yes	-	Yes
Music Player	n/a	Yes	n/a	Yes	n/a
Stereo Speakers	-	-	-	Yes	-
Photo & Video
DLNA	-	-	Yes	-	Yes
TV Output	-	-	-	Yes	Yes
Productivity
Alarm	n/a	Yes	n/a	Yes	n/a
Calculator	n/a	Yes	n/a	Yes	n/a
Calendar	n/a	Yes	n/a	Yes	n/a
To-Do List	n/a	-	n/a	-	n/a
Voice Memo	n/a	Yes	n/a	Yes	n/a
Software
BREW	n/a	Yes	n/a	Yes	n/a
Games	n/a	Yes	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	-	n/a	-	n/a
Speaker Phone	-	Yes	Yes	Yes	Yes
	Samsung SPH-i550	Samsung Trance SCH-U490	Motorola Droid Pro	Samsung SCH-A990	Motorola Droid 4
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-i550	Samsung Trance SCH-U490	Motorola Droid Pro	Samsung SCH-A990	Motorola Droid 4