Screen size
K31Winner: 5.7"+8.8%
X cam5.2"
Quick verdict
X cam leads the measured specs 6-5.
Measured wins
K31
5
spec wins
Ties
6
equal specs
X cam
6
spec wins
Overall winner
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
X cam
GSM / HSPA / LTE
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
X cam
GSM 850 / 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
X cam
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
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
X cam
1, 3, 7, 8, 20
Speed
K31
HSPA, LTE
X cam
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
K31
2020, August 21. Released 2020, August 21
X cam
2016, February. Released 2016, June
Status
K31
Discontinued
X cam
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
X cam
147.5 x 73.6 x 6.9 mm (5.81 x 2.90 x 0.27 in)
Weight
K31
146 g (5.15 oz)
X cam
118 g (4.16 oz)
SIM
K31
Nano-SIM + Nano-SIM
X cam
Nano-SIM + Nano-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
X cam
-
Type
K31
IPS LCD
X cam
IPS LCD
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
X cam
5.2 inches, 74.5 cm2 (~68.7% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
X cam
1080 x 1920 pixels, 16:9 ratio (~424 ppi density)
OS
K31
Android 10, LG UX 9.1
X cam
Android 6.0 (Marshmallow)
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
X cam
Mediatek MT6753 (28 nm)
CPU
K31
Octa-core 2.0 GHz Cortex-A53
X cam
Octa-core 1.14 GHz Cortex-A53
GPU
K31
PowerVR GE8320
X cam
Mali-T720MP3
Card slot
K31
microSDXC
X cam
microSDXC (uses shared SIM slot)
Internal
K31
32GB 2GB RAM
X cam
16GB 2GB RAM
Other
K31
eMMC 5.1
X cam
-
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
X cam
13 MP, f/2.0, AF Auxiliary lens
Features
K31
LED flash, panorama, HDR
X cam
LED flash, panorama
Video
K31
1080p@30fps
X cam
1080p@30fps
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
X cam
8 MP
Video
K31
1080p@30fps
X cam
Loudspeaker
K31
Yes
X cam
Yes
3.5mm jack
K31
Yes
X cam
Yes
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
X cam
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA
Bluetooth
K31
5.0, A2DP, LE
X cam
4.2, A2DP, LE
Positioning
K31
GPS
X cam
GPS, GLONASS
NFC
K31
No
X cam
Yes
Radio
K31
No
X cam
FM radio
USB
K31
microUSB 2.0
X cam
microUSB 2.0
Sensors
K31
Fingerprint (rear-mounted), accelerometer
X cam
Accelerometer, gyro, proximity, compass
Type
K31
Li-Ion 3000 mAh
X cam
Li-Ion 2520 mAh, non-removable
Stand-by
K31
-
X cam
Up to 260 h (2G) / Up to 260 h (3G)
Talk time
K31
-
X cam
Up to 6 h (2G) / Up to 7 h (3G)
Colors
K31
Gray
X cam
Titan Silver, White, Gold, Pink Gold
Models
K31
LM-K300Q, LMK300, LGL355DL
X cam
K580, F690L
Price
K31
About 130 EUR
X cam
About 210 EUR
SAR EU
K31
-
X cam
0.56 W/kg (head)