Screen size
K31Winner: 5.7"+30%
Optimus 2X4.0"
Quick verdict
K31 leads the measured specs 12-1.
Measured wins
K31
12
spec wins
Overall winner
Ties
4
equal specs
Optimus 2X
1
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
Optimus 2X
GSM / HSPA
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Optimus 2X
GSM 850 / 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Optimus 2X
HSDPA 900 / 1900 / 2100 , HSDPA 900 / 1700 / 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
Main camera
Front 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
Optimus 2X
-
Speed
K31
HSPA, LTE
Optimus 2X
HSPA 7.2/5.76 Mbps
Announced
K31
2020, August 21. Released 2020, August 21
Optimus 2X
2010, December. Released 2011, February
Status
K31
Discontinued
Optimus 2X
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Optimus 2X
123.9 x 63.2 x 10.9 mm (4.88 x 2.49 x 0.43 in)
Weight
K31
146 g (5.15 oz)
Optimus 2X
139 g (4.90 oz)
SIM
K31
Nano-SIM + Nano-SIM
Optimus 2X
Mini-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Optimus 2X
-
Type
K31
IPS LCD
Optimus 2X
IPS LCD
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Optimus 2X
4.0 inches, 45.5 cm2 (~58.2% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Optimus 2X
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Protection
K31
-
Optimus 2X
Corning Gorilla Glass
OS
K31
Android 10, LG UX 9.1
Optimus 2X
Android 2.2 (Froyo), 2.3, upgradable to 4.0 (Ice Cream Sandwich)
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
Optimus 2X
Nvidia Tegra 2 AP20H
CPU
K31
Octa-core 2.0 GHz Cortex-A53
Optimus 2X
Dual-core 1.0 GHz Cortex-A9
GPU
K31
PowerVR GE8320
Optimus 2X
ULP GeForce
Card slot
K31
microSDXC
Optimus 2X
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
Optimus 2X
8GB 512MB RAM
Other
K31
eMMC 5.1
Optimus 2X
-
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
Optimus 2X
-
Features
K31
LED flash, panorama, HDR
Optimus 2X
LED flash
Video
K31
1080p@30fps
Optimus 2X
1080p@24fps, 720p@30fps
Single
K31
-
Optimus 2X
8 MP, AF
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Optimus 2X
1.3 MP
Video
K31
1080p@30fps
Optimus 2X
Loudspeaker
K31
Yes
Optimus 2X
Yes
3.5mm jack
K31
Yes
Optimus 2X
Yes
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Optimus 2X
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
K31
5.0, A2DP, LE
Optimus 2X
2.1, A2DP
Positioning
K31
GPS
Optimus 2X
GPS, A-GPS
NFC
K31
No
Optimus 2X
-
Radio
K31
No
Optimus 2X
Stereo FM radio, RDS
USB
K31
microUSB 2.0
Optimus 2X
microUSB 2.0
Sensors
K31
Fingerprint (rear-mounted), accelerometer
Optimus 2X
Accelerometer, gyro, proximity, compass
Browser
K31
-
Optimus 2X
HTML, Adobe Flash
Other
K31
-
Optimus 2X
HDMI port DivX/Xvid/MP4/H.264/WMV player MP3/WAV/WMA/eAAC+ player Document editor Organizer Voice memo/dial/commands Predictive text input
Type
K31
Li-Ion 3000 mAh
Optimus 2X
Removable Li-Ion 1500 mAh battery
Stand-by
K31
-
Optimus 2X
Up to 400 h
Talk time
K31
-
Optimus 2X
Up to 7 h 50 min
Colors
K31
Gray
Optimus 2X
Black
Models
K31
LM-K300Q, LMK300, LGL355DL
Optimus 2X
-
Price
K31
About 130 EUR
Optimus 2X
About 150 EUR
SAR
K31
-
Optimus 2X
0.27 W/kg (head) 0.62 W/kg (body)
SAR EU
K31
-
Optimus 2X
0.55 W/kg (head) 0.90 W/kg (body)