Screen size
K34.5"
K31Winner: 5.7"+21%
Quick verdict
K31 leads the measured specs 11-1.
Measured wins
K3
1
spec wins
Ties
5
equal specs
K31
11
spec wins
Overall winner
Screen size
Technology
K3
GSM / CDMA / HSPA / EVDO / LTE
K31
GSM / CDMA / HSPA / LTE
2G bands
K3
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only), CDMA 800 / 1900 - LS450
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
K3
HSDPA 850 / 900 / 1900 / 2100 - K100, HSDPA 850 / 1700(AWS) / 1900 - LS450, CDMA2000 1xEV-DO - LS450
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
K3
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
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
1, 3, 7, 8, 20 - K100, 2, 4, 5, 12, 25, 26, 41 - LS450
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Speed
K3
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
K31
HSPA, LTE
Announced
K3
2016, August. Released 2016, September
K31
2020, August 21. Released 2020, August 21
Status
K3
Discontinued
K31
Discontinued
Dimensions
K3
133.8 x 67.7 x 9.4 mm (5.27 x 2.67 x 0.37 in)
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight
K3
127 g (4.48 oz)
K31
146 g (5.15 oz)
SIM
K3
· Nano-SIM· Nano-SIM + Nano-SIM
K31
Nano-SIM + Nano-SIM
Other
K3
-
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
K3
IPS LCD
K31
IPS LCD
Size
K3
4.5 inches, 55.8 cm2 (~61.6% screen-to-body ratio)
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
K3
480 x 854 pixels, 16:9 ratio (~218 ppi density)
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
OS
K3
Android 6.0 (Marshmallow)
K31
Android 10, LG UX 9.1
Chipset
K3
Mediatek MT6737M - K100Qualcomm MSM8909 Snapdragon 210 (28 nm) - LS450
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
K3
Quad-core 1.1 GHz Cortex-A53Quad-core 1.1 GHz Cortex-A7
K31
Octa-core 2.0 GHz Cortex-A53
GPU
K3
Mali-T720MP2Adreno 304
K31
PowerVR GE8320
Card slot
K3
microSDHC (dedicated slot)
K31
microSDXC
Internal
K3
8GB 1GB RAM
K31
32GB 2GB RAM
Other
K3
eMMC 4.5
K31
eMMC 5.1
Single
K3
5 MP
K31
-
Features
K3
LED flash - LS450 only
K31
LED flash, panorama, HDR
Video
K3
720p@30fps
K31
1080p@30fps
Dual
K3
-
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
K3
VGA
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
K3
K31
1080p@30fps
Loudspeaker
K3
Yes
K31
Yes
3.5mm jack
K3
Yes
K31
Yes
WLAN
K3
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
K3
4.1, A2DP, LE
K31
5.0, A2DP, LE
Positioning
K3
GPS
K31
GPS
NFC
K3
No
K31
No
Radio
K3
FM radio
K31
No
USB
K3
microUSB 2.0
K31
microUSB 2.0
Sensors
K3
Accelerometer
K31
Fingerprint (rear-mounted), accelerometer
Type
K3
Li-Ion 1940 mAh, removable
K31
Li-Ion 3000 mAh
Colors
K3
Black/Dark BLue
K31
Gray
Models
K3
&, 1050;100, LS450, K100, LGLS450
K31
LM-K300Q, LMK300, LGL355DL
Price
K3
About 100 EUR
K31
About 130 EUR