Screen size
K31Winner: 5.7"+58%
KC7802.4"
Quick verdict
K31 leads the measured specs 13-1.
Measured wins
K31
13
spec wins
Overall winner
Ties
3
equal specs
KC780
1
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
KC780
GSM
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
KC780
GSM 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
KC780
-
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
SD card
equal specsStereo speakers
KC780
-
Speed
K31
HSPA, LTE
KC780
-
GPRS
K31
-
KC780
Class 12
EDGE
K31
-
KC780
Class 12
Announced
K31
2020, August 21. Released 2020, August 21
KC780
2008, October. Released 2008, November
Status
K31
Discontinued
KC780
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
KC780
107 x 52 x 13.9 mm (4.21 x 2.05 x 0.55 in)
Weight
K31
146 g (5.15 oz)
KC780
119 g (4.20 oz)
SIM
K31
Nano-SIM + Nano-SIM
KC780
Mini-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
KC780
-
Type
K31
IPS LCD
KC780
TFT, 256K colors
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
KC780
2.4 inches, 17.8 cm2 (~32.1% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
KC780
240 x 320 pixels, 4:3 ratio (~167 ppi density)
Other
K31
-
KC780
OS
K31
Android 10, LG UX 9.1
KC780
-
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
KC780
-
CPU
K31
Octa-core 2.0 GHz Cortex-A53
KC780
-
GPU
K31
PowerVR GE8320
KC780
-
Card slot
K31
microSDXC
KC780
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
KC780
140MB
Other
K31
eMMC 5.1
KC780
-
Phonebook
K31
-
KC780
1000 contacts, Photo call
Call records
K31
-
KC780
40 dialed, 40 received, 40 missed calls
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
KC780
-
Features
K31
LED flash, panorama, HDR
KC780
Schneider-Kreuznach optics, LED flash
Video
K31
1080p@30fps
KC780
480p@30fps
Single
K31
-
KC780
8 MP, AF
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
KC780
-
Video
K31
1080p@30fps
KC780
-
Other
K31
-
KC780
No
Loudspeaker
K31
Yes
KC780
Yes
3.5mm jack
K31
Yes
KC780
No
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
KC780
No
Bluetooth
K31
5.0, A2DP, LE
KC780
2.1, A2DP
Positioning
K31
GPS
KC780
No
NFC
K31
No
KC780
-
Radio
K31
No
KC780
FM radio
USB
K31
microUSB 2.0
KC780
2.0
Sensors
K31
Fingerprint (rear-mounted), accelerometer
KC780
Accelerometer
Messaging
K31
-
KC780
SMS, EMS, MMS, Email
Browser
K31
-
KC780
WAP 2.0/xHTML
Games
K31
-
KC780
Yes
Java
K31
-
KC780
Yes, MIDP 2.0
Other
K31
-
KC780
MP3/MP4/AAC/DivX6 player Organizer Document viewer (Word, Excel, PowerPoint, PDF) Voice memo Predictive text input
Type
K31
Li-Ion 3000 mAh
KC780
Removable Li-Ion 900 mAh battery
Stand-by
K31
-
KC780
Up to 450 h
Talk time
K31
-
KC780
Up to 6 h
Colors
K31
Gray
KC780
Gray
Models
K31
LM-K300Q, LMK300, LGL355DL
KC780
-
Price
K31
About 130 EUR
KC780
About 140 EUR
SAR
K31
-
KC780
0.20 W/kg (head) 0.50 W/kg (body)