Screen size
K31Winner: 5.7"+30%
Optimus F3Q4.0"
Quick verdict
K31 leads the measured specs 12-1.
Measured wins
K31
12
spec wins
Overall winner
Ties
4
equal specs
Optimus F3Q
1
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
Optimus F3Q
GSM / HSPA / LTE
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Optimus F3Q
GSM 850 / 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Optimus F3Q
HSDPA 850 / 1700 / 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
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 F3Q
2, 4, 13
Speed
K31
HSPA, LTE
Optimus F3Q
HSPA, LTE
Announced
K31
2020, August 21. Released 2020, August 21
Optimus F3Q
2014, January. Released 2014, February
Status
K31
Discontinued
Optimus F3Q
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Optimus F3Q
121.9 x 64.8 x 14 mm (4.80 x 2.55 x 0.55 in)
Weight
K31
146 g (5.15 oz)
Optimus F3Q
159.9 g (5.61 oz)
SIM
K31
Nano-SIM + Nano-SIM
Optimus F3Q
Micro-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Optimus F3Q
-
Keyboard
K31
-
Optimus F3Q
QWERTY
Type
K31
IPS LCD
Optimus F3Q
IPS LCD
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Optimus F3Q
4.0 inches, 45.5 cm2 (~57.7% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Optimus F3Q
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
K31
Android 10, LG UX 9.1
Optimus F3Q
Android 4.1.2 (Jelly Bean)
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
Optimus F3Q
Qualcomm MSM8930 Snapdragon 400 (28 nm)
CPU
K31
Octa-core 2.0 GHz Cortex-A53
Optimus F3Q
Dual-core 1.2 GHz Krait
GPU
K31
PowerVR GE8320
Optimus F3Q
Adreno 305
Card slot
K31
microSDXC
Optimus F3Q
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
Optimus F3Q
4GB 1GB RAM
Other
K31
eMMC 5.1
Optimus F3Q
eMMC 4.5
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 F3Q
-
Features
K31
LED flash, panorama, HDR
Optimus F3Q
LED flash
Video
K31
1080p@30fps
Optimus F3Q
Yes
Single
K31
-
Optimus F3Q
5 MP, AF
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Optimus F3Q
VGA
Video
K31
1080p@30fps
Optimus F3Q
Loudspeaker
K31
Yes
Optimus F3Q
Yes
3.5mm jack
K31
Yes
Optimus F3Q
Yes
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Optimus F3Q
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
K31
5.0, A2DP, LE
Optimus F3Q
4.0, A2DP
Positioning
K31
GPS
Optimus F3Q
GPS
NFC
K31
No
Optimus F3Q
Yes
Radio
K31
No
Optimus F3Q
No
USB
K31
microUSB 2.0
Optimus F3Q
microUSB 2.0
Infrared port
K31
-
Optimus F3Q
Yes
Sensors
K31
Fingerprint (rear-mounted), accelerometer
Optimus F3Q
Accelerometer, proximity
Type
K31
Li-Ion 3000 mAh
Optimus F3Q
Li-Ion 2460 mAh, removable
Colors
K31
Gray
Optimus F3Q
Blue
Models
K31
LM-K300Q, LMK300, LGL355DL
Optimus F3Q
-
Price
K31
About 130 EUR
Optimus F3Q
About 230 EUR