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Specifications
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Phone	AT&T Maestro 3	Samsung SCH-A990	Samsung Glyde U940	Sanyo MM-5600	Palm Treo 600 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	6.5" diag. 20 : 9	?	2.8" diag. 16.5 : 9	?	?
Display Resolution & Type	720 x 1600 pixels (~270 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	240 x 440 pixels (~182 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	160 x 160 pixels LCD (Color)
Display Refresh	60 Hz	?	?	?	?
Battery	3,900 mAh	1,000 mAh	1,000 mAh	1,000 mAh	?
Processor	2 GHz MediaTek Helio A22 (MT6761)	?	?	?	?
RAM	3 GB	?	?	?	?
Storage	32 GB	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	13 megapixel	3 megapixel	2 megapixel	1 megapixel	Yes
Wide Camera	5 megapixel	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	?	QVGA (320 x 240)	?	-
Front Camera	5 megapixel	-	-	-	-
Weight	6.24 oz (177g)	4.4 oz (125g)	4.2 oz (119g)	4.52 oz (128g)	6.2 oz (176g)
Dimensions	6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	4.09" x 1.98" x 0.71" (104 x 50 x 18 mm)	3.66" x 1.91" x 1.04" (93 x 49 x 26.4 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)
Form Factor	Slab	Clamshell	Slide	Clamshell	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Palm OS
Network Bands	4G LTE: 2, 4, 5, 12, 14, 30	CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900
Data Technology	LTE (Cat 4)	EVDO r0	EVDO r0	1xRTT	1xRTT
Features
Barometer	Yes	-	-	-	-
Fingerprint Reader	Yes stand-alone	-	-	-	-
Flashlight	Yes	Yes	-	Yes	-
GPS / Location	n/a	Yes	Yes	Yes	n/a
Accessibility
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	Yes M4 (very compatible)	Yes M4 (very compatible)	-
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	-
Infrared (IR)	-	-	-	-	Yes
USB	Yes USB Type C	Yes	Yes	Yes	Yes
Wi-Fi	Yes 5 (802.11 a,ac,b,g,n)	-	-	-	-
Contacts
Picture ID	n/a	Yes	Yes	Yes	n/a
Ringer ID	n/a	Yes	Yes	Yes	n/a
Voice Dialing	n/a	Yes	Yes	Yes	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	Yes	Yes	Yes	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	-	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	Yes
Touch Screen	Yes Capacitive	-	Yes	-	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	-	-	-	n/a
EMS / Picture Messaging	n/a	Yes	-	-	n/a
MMS	n/a	Yes	Yes	-	n/a
Text Messaging Templates	n/a	Yes	Yes	-	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	-	-
Music Player	n/a	Yes	Yes	Yes	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
TV Output	-	Yes	-	-	-
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	-	-	Yes	n/a
Voice Memo	n/a	Yes	-	Yes	n/a
Software
BREW	n/a	Yes	Yes	-	n/a
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	-	-	Yes	n/a
Voice
Call Screening	-	-	-	Yes	-
HD Voice	Yes	-	-	-	-
Headset Jack (2.5 mm)	n/a	-	Yes	Yes	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	AT&T Maestro 3	Samsung SCH-A990	Samsung Glyde U940	Sanyo MM-5600	Palm Treo 600 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	AT&T Maestro 3	Samsung SCH-A990	Samsung Glyde U940	Sanyo MM-5600	Palm Treo 600 (CDMA)