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LG K31
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Phone Insight
Full Specifications September 4, 2026
LG K31 Android 10
LG · 2020

LG K31

LG K31 Android smartphone. Announced Aug 2020. Features 5.7″ display, MT6762 Helio P22 chipset, 3000 mAh battery, 32 GB storage, 2 GB RAM, MIL-STD-810G compliant.

Display 5.7"
Chipset Helio P22
RAM 2 GB
Storage 32GB storage, microSDXC
Camera 13 MP
Battery 3000 mAh
OS Android 10, LG UX 9.1
Build 146g, 8.6mm thickness

Launch

Announced 2020, August 21. Released 2020, August 21
Status Discontinued

Platform

OS Android 10, LG UX 9.1
Chipset Mediatek MT6762 Helio P22 (12 nm)
CPU Octa-core 2.0 GHz Cortex-A53
GPU PowerVR GE8320

Display

Type IPS LCD
Size 5.7 inches, 81.1 cm 2 (~77.2% screen-to-body ratio)
Resolution 720 x 1520 pixels, 19:9 ratio (~295 ppi density)

Memory

Card slot microSDXC
Internal 32GB 2GB RAM
memoryother eMMC 5.1

Main Camera

Dual 13 MP, f/1.8, 27mm (wide), 1/3.1", 1.12µm, PDAF 5 MP, f/2.2, 120˚ (ultrawide), 1/5.0", 1.12µm
Features LED flash, panorama, HDR
Video 1080p@30fps

Selfie camera

Single 5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video 1080p@30fps

Body

Dimensions 147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight 146 g (5.15 oz)
SIM Nano-SIM + Nano-SIM
bodyother MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions

Battery

Type Li-Ion 3000 mAh

Sound

Loudspeaker Yes
3.5mm jack Yes

Comms

WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS
NFC No
Radio No
USB microUSB 2.0

Network

Technology GSM / CDMA / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Speed HSPA, LTE

Features

Sensors Fingerprint (rear-mounted), accelerometer

Misc

Colors Gray
Models LM-K300Q, LMK300, LGL355DL
Phone Insight phoneinsight.org/ Printed September 4, 2026

For live pricing, photos, and comparisons, visit phoneinsight.org/phones/lg-k31/

In depth

Full specifications

Announced 2020, August 21. Released 2020, August 21
Status Discontinued
OS Android 10, LG UX 9.1
Chipset Mediatek MT6762 Helio P22 (12 nm)
CPU Octa-core 2.0 GHz Cortex-A53
GPU PowerVR GE8320
Type IPS LCD
Size 5.7 inches, 81.1 cm 2 (~77.2% screen-to-body ratio)
Resolution 720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Card slot microSDXC
Internal 32GB 2GB RAM
memoryother eMMC 5.1
Dual 13 MP, f/1.8, 27mm (wide), 1/3.1", 1.12µm, PDAF 5 MP, f/2.2, 120˚ (ultrawide), 1/5.0", 1.12µm
Features LED flash, panorama, HDR
Video 1080p@30fps
Single 5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video 1080p@30fps
Dimensions 147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight 146 g (5.15 oz)
SIM Nano-SIM + Nano-SIM
bodyother MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type Li-Ion 3000 mAh
Loudspeaker Yes
3.5mm jack Yes
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS
NFC No
Radio No
USB microUSB 2.0
Technology GSM / CDMA / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Speed HSPA, LTE
Sensors Fingerprint (rear-mounted), accelerometer
Colors Gray
Models LM-K300Q, LMK300, LGL355DL
Price About 130 EUR
PhoneInsight Benchmark
24.9/100
Basic

A specs-derived composite score, not a lab benchmark -- useful for ranking and comparison.

Processor 12.8
Display 55.7
Camera 56.5
Battery 47
0.1%Popularity rank
287,746 hitsTotal views
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