Screen size
K31Winner: 5.7"+21%
Optimus F64.5"
Quick verdict
K31 leads the measured specs 11-2.
Measured wins
K31
11
spec wins
Overall winner
Ties
4
equal specs
Optimus F6
2
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
Optimus F6
GSM / HSPA / LTE
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Optimus F6
GSM 850 / 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Optimus F6
HSDPA 850 / 1700 / 1900 / 2100 - D500, HSDPA 850 / 900 / 1900 / 2100 - D505
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 F6
4, 17 - D500, 3, 7, 8, 20 - D505
Speed
K31
HSPA, LTE
Optimus F6
HSPA 42.2/5.76 Mbps, LTE Cat3 100/50 Mbps
Announced
K31
2020, August 21. Released 2020, August 21
Optimus F6
2013, August. Released 2013, September
Status
K31
Discontinued
Optimus F6
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Optimus F6
128 x 65.9 x 10.2 mm (5.04 x 2.59 x 0.40 in)
Weight
K31
146 g (5.15 oz)
Optimus F6
126 g (4.44 oz)
SIM
K31
Nano-SIM + Nano-SIM
Optimus F6
Micro-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Optimus F6
-
Type
K31
IPS LCD
Optimus F6
IPS LCD
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Optimus F6
4.5 inches, 55.8 cm2 (~66.2% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Optimus F6
540 x 960 pixels, 16:9 ratio (~245 ppi density)
Protection
K31
-
Optimus F6
Corning Gorilla Glass 2
OS
K31
Android 10, LG UX 9.1
Optimus F6
Android 4.1.2 (Jelly Bean), LG Optimus UI 4
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
Optimus F6
Qualcomm MSM8930 Snapdragon 400 (28 nm)
CPU
K31
Octa-core 2.0 GHz Cortex-A53
Optimus F6
Dual-core 1.2 GHz Krait
GPU
K31
PowerVR GE8320
Optimus F6
Adreno 305
Card slot
K31
microSDXC
Optimus F6
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
Optimus F6
4GB 1GB RAM (D500), 8GB 1GB RAM (D505)
Other
K31
eMMC 5.1
Optimus F6
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 F6
-
Features
K31
LED flash, panorama, HDR
Optimus F6
LED flash, panorama, HDR
Video
K31
1080p@30fps
Optimus F6
1080p@30fps
Single
K31
-
Optimus F6
5 MP, AF (D500) 8 MP, AF (D505)
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Optimus F6
1.3 MP
Video
K31
1080p@30fps
Optimus F6
Loudspeaker
K31
Yes
Optimus F6
Yes
3.5mm jack
K31
Yes
Optimus F6
Yes
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Optimus F6
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot, DLNA
Bluetooth
K31
5.0, A2DP, LE
Optimus F6
4.0, A2DP, LE
Positioning
K31
GPS
Optimus F6
GPS, GLONASS
NFC
K31
No
Optimus F6
Yes
Radio
K31
No
Optimus F6
FM radio
USB
K31
microUSB 2.0
Optimus F6
microUSB 2.0
Sensors
K31
Fingerprint (rear-mounted), accelerometer
Optimus F6
Accelerometer, proximity, compass
Type
K31
Li-Ion 3000 mAh
Optimus F6
Li-Ion 2460 mAh, removable
Stand-by
K31
-
Optimus F6
Up to 540 h (2G) / Up to 540 h (3G)
Talk time
K31
-
Optimus F6
Up to 15 h (2G) / Up to 10 h (3G)
Colors
K31
Gray
Optimus F6
Black, White
Models
K31
LM-K300Q, LMK300, LGL355DL
Optimus F6
-
Price
K31
About 130 EUR
Optimus F6
About 200 EUR
SAR
K31
-
Optimus F6
0.98 W/kg (head) 1.28 W/kg (body)
SAR EU
K31
-
Optimus F6
0.56 W/kg (head) 0.57 W/kg (body)