Overview LG K121K(LGMK121K) aka LG X400

Specification LG K121K(LGMK121K) aka LG X400

Model and Features
Model LG K121K
Series LG X400
Release Date February, 2017
Depth 7.9 mm ( 0.31 in)
Size (width x height) 148.7 x 75.3 mm (5.85 x 2.96 in)
Weight 144 g (5.08 oz)
Operating System Android 7.x Nougat
Hardware
CPU 1.5 GHz Cortex-A53, Mediatek MT6750
CPU Cores Octa-core
RAM Memory 2GB
Internal Storage 16GB
External Storage microSD, up to 64 GB
Network and Data
Number of sim slots 1 Nano-SIM
2G network GSM 850/900/1800/1900 MHz
3G network HSDPA 850/900/1900/2100 MHz
4G network LTE 800, 850, 900, 1800, 2100, 2600 MHz
5G network -
Data GPRS/EDGE
Display
Screen size 5.3 in, 77.4 cm2 (~69.2% screen-to-body ratio)
Display Type IPS LCD capacitive touchscreen
Display Resolution 720 x 1280 pixels 16:9 ratio (~277 ppi density)
Display Colors 16M colors
Battery and Keyboard
Battery Capacity Removable Li-Ion 2800 mAh
Physical keyboard -
Interfaces
Audio output 3.5mm jack
Bluetooth version 4.2, A2DP
DLNA No
GPS Yes, with A-GPS, GLONASS
Infrared port No
NFC Yes
USB microUSB 2.0 , USB On-The-Go
WiFi Wi-Fi802.11b/g/n, Wi-Fi Direct, hotspot

Firmwares LG K121K(LGMK121K) aka LG X400

LG Phone firmwares regions descriptions
Region File name OS Size Date Downloads
KTF
  • Republic of Korea
K121K10Y_00_0219.kdz Android 7.x Nougat 1.77 GiB 2018-03-15 169 time(s)
KTF
  • Republic of Korea
K121K20A_00_0917.kdz Android 8.x Oreo Mirror Release 1 1.64 GiB 2018-10-18 91 time(s)
KTF
  • Republic of Korea
K121K20E_00_0212.kdz Android 8.x Oreo Mirror Release 1 1.67 GiB 2019-03-21 91 time(s)

Articles LG K121K(LGMK121K) aka LG X400

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