Screen size
K20 (2019)5.5"
K31Winner: 5.7"+4.4%
Quick verdict
K31 leads the measured specs 8-1.
Measured wins
K20 (2019)
1
spec wins
Ties
8
equal specs
K31
8
spec wins
Overall winner
Screen size
Technology
K20 (2019)
GSM / HSPA / LTE
K31
GSM / CDMA / HSPA / LTE
2G bands
K20 (2019)
GSM 850 / 900 / 1800 / 1900
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
K20 (2019)
HSDPA 850 / 900 / 1900 / 2100
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
K20 (2019)
1, 3, 7, 8, 20, 38
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
equal specsBattery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Speed
K20 (2019)
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
K31
HSPA, LTE
Announced
K20 (2019)
2019, August. Released 2019, September
K31
2020, August 21. Released 2020, August 21
Status
K20 (2019)
Discontinued
K31
Discontinued
Dimensions
K20 (2019)
148.6 x 71.9 x 8.3 mm (5.85 x 2.83 x 0.33 in)
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight
K20 (2019)
152 g (5.36 oz)
K31
146 g (5.15 oz)
Build
K20 (2019)
Glass front, plastic back, plastic frame
K31
-
SIM
K20 (2019)
Nano-SIM + Nano-SIM
K31
Nano-SIM + Nano-SIM
Other
K20 (2019)
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
K20 (2019)
IPS LCD
K31
IPS LCD
Size
K20 (2019)
5.45 inches, 76.7 cm2 (~71.7% screen-to-body ratio)
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
K20 (2019)
480 x 960 pixels, 18:9 ratio (~197 ppi density)
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
OS
K20 (2019)
Android 9.0 Pie (Go edition)
K31
Android 10, LG UX 9.1
Chipset
K20 (2019)
Mediatek MT6739 (28 nm)
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
K20 (2019)
Quad-core 1.5 GHz Cortex-A53
K31
Octa-core 2.0 GHz Cortex-A53
GPU
K20 (2019)
PowerVR GE8100
K31
PowerVR GE8320
Card slot
K20 (2019)
microSDHC (dedicated slot)
K31
microSDXC
Internal
K20 (2019)
16GB 1GB RAM
K31
32GB 2GB RAM
Other
K20 (2019)
eMMC 5.1
K31
eMMC 5.1
Single
K20 (2019)
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm, AF
K31
-
Features
K20 (2019)
LED flash, panorama, HDR
K31
LED flash, panorama, HDR
Video
K20 (2019)
1080p@30fps
K31
1080p@30fps
Dual
K20 (2019)
-
K31
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
Single
K20 (2019)
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Features
K20 (2019)
LED flash
K31
-
Video
K20 (2019)
K31
1080p@30fps
Loudspeaker
K20 (2019)
Yes
K31
Yes
3.5mm jack
K20 (2019)
Yes
K31
Yes
WLAN
K20 (2019)
Wi-Fi 802.11 b/g/n
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
K20 (2019)
5.0, A2DP, LE
K31
5.0, A2DP, LE
Positioning
K20 (2019)
GPS
K31
GPS
NFC
K20 (2019)
No
K31
No
Radio
K20 (2019)
No
K31
No
USB
K20 (2019)
microUSB 2.0
K31
microUSB 2.0
Sensors
K20 (2019)
Accelerometer, proximity
K31
Fingerprint (rear-mounted), accelerometer
Type
K20 (2019)
Li-Ion 3000 mAh, non-removable
K31
Li-Ion 3000 mAh
Colors
K20 (2019)
New Aurora Black, New Moroccan Blue
K31
Gray
Models
K20 (2019)
LM-X120EMW, LMX120EMW, LM-X120, LMX120BMW
K31
LM-K300Q, LMK300, LGL355DL
Price
K20 (2019)
About 100 EUR
K31
About 130 EUR