Screen size
K31Winner: 5.7"+3.5%
X55.5"
Quick verdict
K31 leads the measured specs 8-3.
Measured wins
K31
8
spec wins
Overall winner
Ties
6
equal specs
X5
3
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
X5
GSM / HSPA / LTE
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
X5
GSM 850 / 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
X5
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
equal specsStorage
Main camera
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
X5
LTE
Speed
K31
HSPA, LTE
X5
HSPA, LTE
Announced
K31
2020, August 21. Released 2020, August 21
X5
2016, July. Released 2016, August
Status
K31
Discontinued
X5
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
X5
151.6 x 76.9 x 7.2 mm (5.97 x 3.03 x 0.28 in)
Weight
K31
146 g (5.15 oz)
X5
133 g (4.69 oz)
SIM
K31
Nano-SIM + Nano-SIM
X5
Micro-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
X5
-
Type
K31
IPS LCD
X5
IPS LCD
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
X5
5.5 inches, 83.4 cm2 (~71.5% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
X5
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
OS
K31
Android 10, LG UX 9.1
X5
Android 6.0 (Marshmallow)
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
X5
-
CPU
K31
Octa-core 2.0 GHz Cortex-A53
X5
Quad-core 1.3 GHz
GPU
K31
PowerVR GE8320
X5
-
Card slot
K31
microSDXC
X5
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
X5
16GB 2GB RAM
Other
K31
eMMC 5.1
X5
-
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
X5
-
Features
K31
LED flash, panorama, HDR
X5
LED flash, HDR, panorama
Video
K31
1080p@30fps
X5
1080p@30fps
Single
K31
-
X5
13 MP, AF
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
X5
5 MP
Video
K31
1080p@30fps
X5
1080p@30fps
Loudspeaker
K31
Yes
X5
Yes
3.5mm jack
K31
Yes
X5
Yes
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
X5
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
K31
5.0, A2DP, LE
X5
4.2, A2DP, LE
Positioning
K31
GPS
X5
GPS, GLONASS
NFC
K31
No
X5
Yes
Radio
K31
No
X5
FM radio
USB
K31
microUSB 2.0
X5
microUSB
Sensors
K31
Fingerprint (rear-mounted), accelerometer
X5
Accelerometer, proximity, compass
Type
K31
Li-Ion 3000 mAh
X5
Li-Ion 2800 mAh, removable
Colors
K31
Gray
X5
White, Indigo Black
Models
K31
LM-K300Q, LMK300, LGL355DL
X5
F770S, LM-X510L
Price
K31
About 130 EUR
X5
About 160 EUR