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Phone AT&T Maestro 3 Samsung SPH/SCH-N300 Samsung SCH-A990 Sharp Sidekick LX 2009 Samsung Galaxy Note Edge (CDMA)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6.5" diag.
20 : 9
? ? 3.2" diag.
16 : 9
5.6" diag.
16 : 9
Display Resolution & Type 720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
128 x 64 pixels 240 x 320 pixels
LCD (TFT/TFD)
854 x 480 pixels
(~306 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~525 ppi)
AMOLED
Display Refresh 60 Hz ? ? ? 60 Hz
Battery 3,900 mAh ? 1,000 mAh 1,250 mAh 3,000 mAh
Processor 2 GHz MediaTek Helio A22 (MT6761) ? ? ? 2.7 GHz Qualcomm Snapdragon 805
RAM 3 GB ? ? ? 3 GB
Storage 32 GB ? raw hardware ? raw hardware ? raw hardware 32 GB
Main Camera 13 megapixel - 3 megapixel 3 megapixel 16 megapixel
Wide Camera 5 megapixel - - - -
Tele Camera - - - - -
Video Capture 1080p HD - ? QVGA (320 x 240) 4K UHD
Front Camera 5 megapixel - - - 4 megapixel
Weight 6.24 oz
(177g)
4.1 oz
(116g)
4.4 oz
(125g)
5.78 oz
(164g)
6.14 oz
(174g)
Dimensions 6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
4.5" x 1.9" x 0.9"
(114 x 48 x 22.9 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
5.12" x 2.36" x 0.63"
(130 x 60 x 16 mm)
5.96" x 3.24" x 0.33"
(151 x 82 x 8.4 mm)
Form Factor Slab Flip Clamshell Swivel Slab
Platform / OS Android (proprietary) (proprietary) (proprietary) Android
Network Bands

4G LTE: 2, 4, 5, 12, 14, 30

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

4G LTE: 4, 13, 25, 26, 41

WCDMA: 1, 2, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) - EVDO r0 HSPA 7.2 LTE (Cat 4)
Features 
Barometer Yes - - - -
Fingerprint Reader Yes
stand-alone
- - - Yes
Flashlight Yes - Yes - Yes
GPS / Location n/a Yes Yes Yes n/a
Accessibility
Adjustable Text Size n/a - - Yes n/a
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages n/a - Yes Yes n/a
TTY/TDD (Digital) - - Yes - Yes
Alerts
Extra Display - - Yes - -
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - - - Yes
MirrorLink - - - - Yes
Mobile Hotspot n/a - - - n/a
NFC - - - - Yes
USB Yes
USB Type C
- Yes Yes Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- - - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a - Yes Yes n/a
Ringer ID n/a - Yes Yes n/a
Voice Dialing n/a Yes Yes - n/a
Customization
Custom Graphics n/a - Yes Yes n/a
Custom Ringtones n/a - Yes Yes n/a
Real-Music Ringers n/a - 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 - n/a
Side Keys Yes Yes Yes Yes Yes
Stylus - - - - Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes - - - Yes
Memory
Memory Card Slot Yes - Yes Yes Yes
Messaging
Email Client n/a - - Yes n/a
EMS / Picture Messaging n/a - Yes - n/a
Instant 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 - - Yes Yes
Music Player n/a - Yes Yes n/a
Stereo Speakers - - Yes - -
Photo & Video
TV Output - - Yes - Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm n/a Yes Yes Yes n/a
Calculator n/a Yes Yes - n/a
Calendar n/a Yes Yes Yes n/a
To-Do List n/a Yes - Yes n/a
Voice Memo n/a - Yes - n/a
Software
BREW n/a - Yes - n/a
Games n/a Yes Yes Yes n/a
Java (J2ME) n/a - - Yes n/a
Voice
HD Voice Yes - - - Yes
Headset Jack (2.5 mm) n/a Yes - - n/a
Speaker Phone Yes - Yes Yes Yes
  AT&T Maestro 3 Samsung SPH/SCH-N300 Samsung SCH-A990 Sharp Sidekick LX 2009 Samsung Galaxy Note Edge (CDMA)
  X > < X > < X > < X > < X

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

 
Phone AT&T Maestro 3 Samsung SPH/SCH-N300 Samsung SCH-A990 Sharp Sidekick LX 2009 Samsung Galaxy Note Edge (CDMA)

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