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Phone Samsung SPH-N270 (Matrix Phone) LG K40 / Harmony 3 Samsung SCH-A990
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 5.7" diag.
18 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
720 x 1440 pixels
(~282 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ?
Battery 1,000 mAh 3,000 mAh 1,000 mAh
Processor ? 1.8 GHz Qualcomm Snapdragon 450 ?
RAM ? 2 GB ?
Storage ? raw hardware 32 GB ? raw hardware
Main Camera - 13 megapixel 3 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture - 1080p HD ?
Front Camera - 5 megapixel -
Weight 4.66 oz
(132g)
5.11 oz
(145g)
4.4 oz
(125g)
Dimensions 4.53" x 2.28" x 0.79"
(115 x 58 x 20.1 mm)
6.02" x 2.83" x 0.32"
(153 x 72 x 8.1 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Slide Slab Clamshell
Platform / OS (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

4G LTE: 2, 4, 5, 12, 13, 14, 25, 26, 29, 30, 41, 66, 71

WCDMA: 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

Data Technology - LTE (Cat 6) EVDO r0
Features 
Fingerprint Reader - Yes
stand-alone
-
Flashlight - Yes Yes
GPS / Location Yes n/a Yes
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes n/a Yes
TTY/TDD (Digital) - Yes Yes
Alerts
Extra Display - - Yes
Connectivity
Bluetooth - Yes Yes
NFC - Yes * -
USB - Yes
Micro-USB
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes n/a Yes
Ringer ID Yes n/a Yes
Voice Dialing Yes n/a Yes
Customization
Custom Graphics - n/a Yes
Custom Ringtones - n/a Yes
Real-Music Ringers - n/a Yes
Data & Network
Data Tethering - n/a Yes
WAP / Web Browser - n/a Yes
Input
Predictive Text Entry Yes n/a Yes
Side Keys - Yes Yes
Touch Screen - Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes
Messaging
EMS / Picture Messaging - n/a Yes
MMS - n/a Yes
Text Messaging Templates - n/a Yes
Music
FM Radio - Yes -
Headphone Jack (3.5mm) - Yes -
Music Player - n/a Yes
Stereo Speakers - - Yes
Photo & Video
DLNA - Yes -
TV Output - - Yes
Productivity
Alarm Yes n/a Yes
Calculator Yes n/a Yes
Calendar Yes n/a Yes
To-Do List Yes n/a -
Voice Memo Yes n/a Yes
Software
BREW - n/a Yes
Games - n/a Yes
Voice
HD Voice - Yes -
Headset Jack (2.5 mm) Yes n/a -
Speaker Phone - Yes Yes
  * Some versions only
  Samsung SPH-N270 (Matrix Phone) LG K40 / Harmony 3 Samsung SCH-A990
  X > < X > < X

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

 
Phone Samsung SPH-N270 (Matrix Phone) LG K40 / Harmony 3 Samsung SCH-A990

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