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Phone AT&T Maestro 3 LG Stylo 4 Samsung SCH-A990 Kyocera 3225 Kyocera Event
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6.5" diag.
20 : 9
6.2" diag.
18 : 9
? ? 3.5" diag.
5 : 3
Display Resolution & Type 720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
?
LCD (Grayscale)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz ? ? 60 Hz
Battery 3,900 mAh 3,300 mAh 1,000 mAh ? 1,500 mAh
Processor 2 GHz MediaTek Helio A22 (MT6761) 1.8 GHz Qualcomm Snapdragon 450 ? ? 1 GHz Qualcomm Snapdragon S2 MSM8655
RAM 3 GB 2 GB * ? ? 512 MB
Storage 32 GB 32 GB * ? raw hardware ? raw hardware 4 GB
Main Camera 13 megapixel 13 megapixel 3 megapixel - 3 megapixel
Wide Camera 5 megapixel - - - -
Tele Camera - - - - -
Video Capture 1080p HD 1080p HD ? - WVGA / 480p
Front Camera 5 megapixel 5 megapixel - - -
Weight 6.24 oz
(177g)
6.07 oz
(172g)
4.4 oz
(125g)
4.23 oz
(120g)
4.1 oz
(116g)
Dimensions 6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.4" x 1.97" x 1.02"
(86 x 50 x 25.9 mm)
4.53" x 2.41" x 0.46"
(115 x 61 x 11.7 mm)
Form Factor Slab Slab Clamshell Slab Slab
Platform / OS Android Android (proprietary) (proprietary) Android
Network Bands

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

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 1900

Data Technology LTE (Cat 4) LTE (Cat 6) EVDO r0 1xRTT EVDO rA
Features 
Barometer Yes - - - -
Fingerprint Reader Yes
stand-alone
Yes
stand-alone
- - -
Flashlight Yes Yes Yes - -
GPS / Location n/a n/a Yes Yes n/a
Accessibility
Adjustable Text Size n/a n/a - - n/a
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
- Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a n/a Yes Yes n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - - Yes - -
Connectivity
Bluetooth Yes Yes Yes - Yes
NFC - Yes * - - -
USB Yes
USB Type C
Yes
USB Type C
Yes - Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- - Yes
4 (802.11 b,g,n)
Contacts
Picture ID n/a n/a Yes - n/a
Ringer ID n/a n/a Yes - n/a
Voice Dialing n/a n/a Yes Yes n/a
Customization
Custom Graphics n/a n/a Yes Yes n/a
Custom Ringtones n/a n/a Yes Yes n/a
Real-Music Ringers n/a n/a Yes - n/a
Data & Network
Data Tethering n/a n/a Yes Yes n/a
WAP / Web Browser n/a n/a Yes Yes n/a
Input
Predictive Text Entry n/a n/a Yes Yes n/a
Side Keys Yes Yes Yes - Yes
Stylus - Yes - - -
Touch Screen Yes
Capacitive
Yes
Capacitive
- - Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes - Yes
Messaging
Email Client n/a n/a - - n/a
EMS / Picture Messaging n/a n/a Yes Yes n/a
Instant Messaging n/a n/a - - n/a
MMS n/a n/a Yes - n/a
Text Messaging Templates n/a n/a Yes - n/a
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) Yes Yes - - Yes
Music Player n/a n/a Yes - n/a
Stereo Speakers - - Yes - -
Photo & Video
DLNA - Yes - - -
TV Output - - Yes - -
Productivity
Alarm n/a n/a Yes Yes n/a
Calculator n/a n/a Yes Yes n/a
Calendar n/a n/a Yes Yes n/a
Voice Memo n/a n/a Yes - n/a
Software
BREW n/a n/a Yes Yes n/a
Games n/a n/a Yes Yes n/a
Voice
HD Voice Yes Yes - - -
Headset Jack (2.5 mm) n/a n/a - Yes n/a
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  AT&T Maestro 3 LG Stylo 4 Samsung SCH-A990 Kyocera 3225 Kyocera Event
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Phone AT&T Maestro 3 LG Stylo 4 Samsung SCH-A990 Kyocera 3225 Kyocera Event

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