Screen size
K31Winner: 5.7"+39%
L40 Dual D1703.5"
Quick verdict
K31 leads the measured specs 11-2.
Measured wins
K31
11
spec wins
Overall winner
Ties
4
equal specs
L40 Dual D170
2
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
L40 Dual D170
GSM / HSPA
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
L40 Dual D170
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only), GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 & SIM 3 (triple SIM model)
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
L40 Dual D170
HSDPA 900 / 2100
4G bands
K31
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
L40 Dual D170
-
Speed
K31
HSPA, LTE
L40 Dual D170
HSPA 14.4/5.76 Mbps
Announced
K31
2020, August 21. Released 2020, August 21
L40 Dual D170
2014, February. Released 2014, May
Status
K31
Discontinued
L40 Dual D170
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
L40 Dual D170
109.4 x 59 x 11.9 mm (4.31 x 2.32 x 0.47 in)
Weight
K31
146 g (5.15 oz)
L40 Dual D170
113.4 g (3.99 oz)
SIM
K31
Nano-SIM + Nano-SIM
L40 Dual D170
Single SIM (Mini-SIM) or Dual SIM (Mini-SIM, dual stand-by)
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
L40 Dual D170
-
Type
K31
IPS LCD
L40 Dual D170
IPS LCD
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
L40 Dual D170
3.5 inches, 36.5 cm2 (~56.5% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
L40 Dual D170
320 x 480 pixels, 3:2 ratio (~165 ppi density)
Protection
K31
-
L40 Dual D170
Corning Gorilla Glass 2
OS
K31
Android 10, LG UX 9.1
L40 Dual D170
Android 4.4.2 (KitKat), LG UI 3
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
L40 Dual D170
Qualcomm MSM8210/MSM8610 Snapdragon 200 (28 nm)
CPU
K31
Octa-core 2.0 GHz Cortex-A53
L40 Dual D170
Dual-core 1.2 GHz Cortex-A7
GPU
K31
PowerVR GE8320
L40 Dual D170
Adreno 302
Card slot
K31
microSDXC
L40 Dual D170
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
L40 Dual D170
4GB 512MB RAM
Other
K31
eMMC 5.1
L40 Dual D170
eMMC 4.5
Dual
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
L40 Dual D170
-
Features
K31
LED flash, panorama, HDR
L40 Dual D170
-
Video
K31
1080p@30fps
L40 Dual D170
Yes
Single
K31
-
L40 Dual D170
3.15 MP
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
L40 Dual D170
-
Video
K31
1080p@30fps
L40 Dual D170
-
Other
K31
-
L40 Dual D170
No
Loudspeaker
K31
Yes
L40 Dual D170
Yes
3.5mm jack
K31
Yes
L40 Dual D170
Yes
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
L40 Dual D170
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
K31
5.0, A2DP, LE
L40 Dual D170
4.0, A2DP
Positioning
K31
GPS
L40 Dual D170
A-GPS only
NFC
K31
No
L40 Dual D170
No
Radio
K31
No
L40 Dual D170
FM radio, RDS
USB
K31
microUSB 2.0
L40 Dual D170
microUSB
Sensors
K31
Fingerprint (rear-mounted), accelerometer
L40 Dual D170
Accelerometer
Type
K31
Li-Ion 3000 mAh
L40 Dual D170
Li-Ion 1700/1540 mAh, removable
Colors
K31
Gray
L40 Dual D170
White, Black
Models
K31
LM-K300Q, LMK300, LGL355DL
L40 Dual D170
D170
Price
K31
About 130 EUR
L40 Dual D170
About 90 EUR
SAR EU
K31
-
L40 Dual D170
0.56 W/kg (head) 0.65 W/kg (body)