Screen size
K31Winner: 5.7"+8.8%
Q8 (2017)5.2"
Quick verdict
Q8 (2017) leads the measured specs 9-3.
Measured wins
K31
3
spec wins
Ties
7
equal specs
Q8 (2017)
9
spec wins
Overall winner
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
Q8 (2017)
GSM / HSPA / LTE
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Q8 (2017)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Q8 (2017)
HSDPA 850 / 900 / 1900 / 2100
4G bands
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
equal specsBattery
equal specsWired charging
Weight
equal specsThickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Q8 (2017)
LTE
Speed
K31
HSPA, LTE
Q8 (2017)
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
K31
2020, August 21. Released 2020, August 21
Q8 (2017)
2017, July. Released 2017, August
Status
K31
Discontinued
Q8 (2017)
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Q8 (2017)
149 x 71.9 x 8 mm (5.87 x 2.83 x 0.31 in)
Weight
K31
146 g (5.15 oz)
Q8 (2017)
146 g (5.15 oz)
SIM
K31
Nano-SIM + Nano-SIM
Q8 (2017)
· Nano-SIM· Nano-SIM + Nano-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Q8 (2017)
IP67 dust/water resistant (up to 1m for 30 min)
Build
K31
-
Q8 (2017)
Glass front (Gorilla Glass 4), aluminum/plastic back, aluminum frame
Type
K31
IPS LCD
Q8 (2017)
IPS LCD
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Q8 (2017)
5.2 inches, 74.8 cm2 (~69.8% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Q8 (2017)
1440 x 2560 pixels, 16:9 ratio (~564 ppi density)
Protection
K31
-
Q8 (2017)
Corning Gorilla Glass 4
Other
K31
-
Q8 (2017)
Secondary display, 160 x 1040 pixels, 1.8 inches
OS
K31
Android 10, LG UX 9.1
Q8 (2017)
Android 7.0 (Nougat)
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
Q8 (2017)
Qualcomm MSM8996 Snapdragon 820 (14 nm)
CPU
K31
Octa-core 2.0 GHz Cortex-A53
Q8 (2017)
Quad-core (2x2.15 GHz Kryo & 2x1.6 GHz Kryo)
GPU
K31
PowerVR GE8320
Q8 (2017)
Adreno 530
Card slot
K31
microSDXC
Q8 (2017)
microSDXC (dedicated slot) - single-SIM modelmicroSDXC (uses shared SIM slot) - dual-SIM model
Internal
K31
32GB 2GB RAM
Q8 (2017)
32GB 4GB RAM
Other
K31
eMMC 5.1
Q8 (2017)
-
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
Q8 (2017)
16 MP, f/1.8, 28mm (wide), 1/2.6", 3-axis OIS 8 MP, f/2.4, 10mm (ultrawide), 1/4.0"
Features
K31
LED flash, panorama, HDR
Q8 (2017)
Laser AF, Dual-LED flash, panorama, HDR
Video
K31
1080p@30fps
Q8 (2017)
4K@30fps, 1080p@30/60fps, 720p@120fps, 24-bit/48kHz stereo sound rec.
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Q8 (2017)
5 MP, f/1.9, 1/5.0", 1.12µm
Video
K31
1080p@30fps
Q8 (2017)
1080p@30fps
Loudspeaker
K31
Yes
Q8 (2017)
Yes
3.5mm jack
K31
Yes
Q8 (2017)
Yes
Other
K31
-
Q8 (2017)
32-bit/192kHz audio 24-bit/192kHz audio recording
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Q8 (2017)
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Bluetooth
K31
5.0, A2DP, LE
Q8 (2017)
4.2, A2DP, LE
Positioning
K31
GPS
Q8 (2017)
GPS, GLONASS
NFC
K31
No
Q8 (2017)
Yes
Radio
K31
No
Q8 (2017)
FM radio, RDS
USB
K31
microUSB 2.0
Q8 (2017)
USB Type-C
Infrared port
K31
-
Q8 (2017)
Yes
Sensors
K31
Fingerprint (rear-mounted), accelerometer
Q8 (2017)
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
K31
Li-Ion 3000 mAh
Q8 (2017)
Li-Ion 3000 mAh, non-removable
Charging
K31
-
Q8 (2017)
18W wired, QC3
Colors
K31
Gray
Q8 (2017)
Titan
Models
K31
LM-K300Q, LMK300, LGL355DL
Q8 (2017)
H970
Price
K31
About 130 EUR
Q8 (2017)
About 200 EUR