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Phone Samsung SGH-D900 / Black Carbon Samsung SPH/SCH-N300 LG Q7+ LG K20 / Harmony / Grace LG AX-390 / UX-390
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 5.5" diag.
18 : 9
5.3" diag.
16 : 9
?
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
128 x 64 pixels 1080 x 2160 pixels
(~439 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~277 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery 800 mAh ? 3,000 mAh 2,800 mAh 1,000 mAh
Processor ? ? 1.8 GHz Qualcomm Snapdragon 450 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ?
RAM ? ? 4 GB 1.5 GB ?
Storage ? raw hardware ? raw hardware 64 GB 16 GB ? raw hardware
Main Camera 3 megapixel - 16 megapixel 8 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - 1080p HD 1080p HD -
Front Camera - - 8 megapixel 5 megapixel -
Weight 3.28 oz
(93g)
4.1 oz
(116g)
5.11 oz
(145g)
5 oz
(142g)
3.74 oz
(106g)
Dimensions 4.07" x 2.01" x 0.51"
(103 x 51 x 13 mm)
4.5" x 1.9" x 0.9"
(114 x 48 x 22.9 mm)
5.66" x 2.73" x 0.33"
(144 x 69 x 8.4 mm)
5.9" x 3" x 0.3"
(150 x 76 x 7.6 mm)
3.82" x 1.98" x 0.94"
(97 x 50 x 23.9 mm)
Form Factor Slide Flip Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) Android Android (proprietary)
Network Bands

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

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

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology EDGE - LTE (Cat 13) LTE (Cat 4) 1xRTT
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight - - Yes Yes -
GPS / Location - Yes n/a n/a Yes
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
Accessibility
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages Yes - n/a n/a Yes
TTY/TDD (Digital) - - Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
Yes
Classic Audio
-
NFC - - Yes Yes * -
USB Yes - Yes
USB Type C
Yes
Micro-USB
-
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes - n/a n/a Yes
Ringer ID Yes - n/a n/a -
Voice Dialing - Yes n/a n/a Yes
Customization
Custom Graphics Yes - n/a n/a Yes
Custom Ringtones Yes - n/a n/a Yes
Real-Music Ringers Yes - n/a n/a Yes
Data & Network
Data Tethering Yes Yes n/a n/a -
WAP / Web Browser Yes Yes n/a n/a Yes
Input
Predictive Text Entry Yes Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes Yes -
Memory
Memory Card Slot Yes - Yes Yes -
Messaging
Email Client Yes - n/a n/a -
EMS / Picture Messaging Yes - n/a n/a -
MMS Yes - n/a n/a Yes
Text Messaging Templates Yes - n/a n/a -
Music
FM Radio - - Yes Yes -
Headphone Jack (3.5mm) - - Yes Yes -
Music Player Yes - n/a n/a -
Photo & Video
DLNA - - Yes - -
TV Output Yes - - - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a Yes
Calendar Yes Yes n/a n/a Yes
To-Do List Yes Yes n/a n/a -
Voice Memo Yes - n/a n/a Yes
Software
BREW - - n/a n/a Yes
Games Yes Yes n/a n/a Yes
Java (J2ME) Yes - n/a n/a -
Voice
HD Voice - - Yes Yes -
Headset Jack (2.5 mm) - Yes n/a n/a Yes
Push-To-Talk - - - - Yes
Speaker Phone Yes - Yes Yes Yes
  * Some versions only
  Samsung SGH-D900 / Black Carbon Samsung SPH/SCH-N300 LG Q7+ LG K20 / Harmony / Grace LG AX-390 / UX-390
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-D900 / Black Carbon Samsung SPH/SCH-N300 LG Q7+ LG K20 / Harmony / Grace LG AX-390 / UX-390

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