Screen size
K3 (2017)4.5"
K31Winner: 5.7"+21%
Quick verdict
K31 leads the measured specs 11-1.
Measured wins
K3 (2017)
1
spec wins
Ties
5
equal specs
K31
11
spec wins
Overall winner
Screen size
Technology
K3 (2017)
GSM / HSPA / LTE
K31
GSM / CDMA / HSPA / LTE
2G bands
K3 (2017)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
K3 (2017)
HSDPA 850 / 900 / 1900 / 2100
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
K3 (2017)
LTE
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
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Speed
K3 (2017)
HSPA, LTE
K31
HSPA, LTE
Announced
K3 (2017)
2016, December. Released 2017, April
K31
2020, August 21. Released 2020, August 21
Status
K3 (2017)
Discontinued
K31
Discontinued
Dimensions
K3 (2017)
133.9 x 69.8 x 9.5 mm (5.27 x 2.75 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 (2017)
132 g (4.66 oz)
K31
146 g (5.15 oz)
SIM
K3 (2017)
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
K31
Nano-SIM + Nano-SIM
Other
K3 (2017)
-
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
K3 (2017)
IPS LCD
K31
IPS LCD
Size
K3 (2017)
4.5 inches, 55.8 cm2 (~59.7% screen-to-body ratio)
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
K3 (2017)
480 x 854 pixels, 16:9 ratio (~218 ppi density)
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
OS
K3 (2017)
Android 6.0.1 (Marshmallow)
K31
Android 10, LG UX 9.1
Chipset
K3 (2017)
Qualcomm MSM8909 Snapdragon 210 (28 nm)
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
K3 (2017)
Quad-core 1.1 GHz Cortex-A7
K31
Octa-core 2.0 GHz Cortex-A53
GPU
K3 (2017)
Adreno 304
K31
PowerVR GE8320
Card slot
K3 (2017)
microSDHC (dedicated slot)
K31
microSDXC
Internal
K3 (2017)
8GB 1GB RAM
K31
32GB 2GB RAM
Other
K3 (2017)
eMMC 4.5
K31
eMMC 5.1
Single
K3 (2017)
5 MP
K31
-
Features
K3 (2017)
LED flash
K31
LED flash, panorama, HDR
Video
K3 (2017)
720p@30fps
K31
1080p@30fps
Dual
K3 (2017)
-
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 (2017)
2 MP
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
K3 (2017)
K31
1080p@30fps
Loudspeaker
K3 (2017)
Yes
K31
Yes
3.5mm jack
K3 (2017)
Yes
K31
Yes
WLAN
K3 (2017)
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
K3 (2017)
4.1, A2DP, LE
K31
5.0, A2DP, LE
Positioning
K3 (2017)
GPS, GLONASS
K31
GPS
NFC
K3 (2017)
No
K31
No
Radio
K3 (2017)
FM radio
K31
No
USB
K3 (2017)
microUSB 2.0
K31
microUSB 2.0
Sensors
K3 (2017)
Accelerometer
K31
Fingerprint (rear-mounted), accelerometer
Type
K3 (2017)
Li-Ion 2100 mAh, removable
K31
Li-Ion 3000 mAh
Stand-by
K3 (2017)
Up to 500 h (3G)
K31
-
Talk time
K3 (2017)
Up to 5 h 30 min (3G)
K31
-
Colors
K3 (2017)
Black
K31
Gray
Price
K3 (2017)
About 90 EUR
K31
About 130 EUR
Models
K3 (2017)
-
K31
LM-K300Q, LMK300, LGL355DL