Screen size
K31Winner: 5.7"+61%
KT5202.2"
Quick verdict
K31 leads the measured specs 13-2.
Measured wins
K31
13
spec wins
Overall winner
Ties
2
equal specs
KT520
2
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
KT520
GSM / HSPA
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
KT520
GSM 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
KT520
HSDPA 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
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
KT520
-
Speed
K31
HSPA, LTE
KT520
HSPA 3.6/0.384 Mbps
Announced
K31
2020, August 21. Released 2020, August 21
KT520
2008, February. Released 2008, August
Status
K31
Discontinued
KT520
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
KT520
101.4 x 49.6 x 15.3 mm (3.99 x 1.95 x 0.60 in)
Weight
K31
146 g (5.15 oz)
KT520
97 g (3.42 oz)
SIM
K31
Nano-SIM + Nano-SIM
KT520
Mini-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
KT520
-
Type
K31
IPS LCD
KT520
TFT, 256K colors
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
KT520
2.2 inches, 15.0 cm2 (~29.8% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
KT520
240 x 320 pixels, 4:3 ratio (~182 ppi density)
Other
K31
-
KT520
360 deg finger mouse navigation Downloadable themes
OS
K31
Android 10, LG UX 9.1
KT520
-
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
KT520
-
CPU
K31
Octa-core 2.0 GHz Cortex-A53
KT520
-
GPU
K31
PowerVR GE8320
KT520
-
Card slot
K31
microSDXC
KT520
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
KT520
30MB
Other
K31
eMMC 5.1
KT520
-
Phonebook
K31
-
KT520
Yes, Photocall
Call records
K31
-
KT520
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
KT520
-
Features
K31
LED flash, panorama, HDR
KT520
-
Video
K31
1080p@30fps
KT520
Yes
Single
K31
-
KT520
3.15 MP
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
KT520
Yes
Video
K31
1080p@30fps
KT520
Loudspeaker
K31
Yes
KT520
Yes
3.5mm jack
K31
Yes
KT520
No
Alert types
K31
-
KT520
Vibration; Downloadable polyphonic, MP3 ringtones
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
KT520
No
Bluetooth
K31
5.0, A2DP, LE
KT520
2.0
Positioning
K31
GPS
KT520
No
NFC
K31
No
KT520
-
Radio
K31
No
KT520
No
USB
K31
microUSB 2.0
KT520
Proprietary
Sensors
K31
Fingerprint (rear-mounted), accelerometer
KT520
Messaging
K31
-
KT520
SMS, EMS, MMS
Browser
K31
-
KT520
WAP 2.0/xHTML, HTML
Games
K31
-
KT520
Yes
Java
K31
-
KT520
Yes, MIDP 2.0
Other
K31
-
KT520
MP3 player Voice command/dial
Type
K31
Li-Ion 3000 mAh
KT520
Removable Li-Ion 800 mAh battery
Stand-by
K31
-
KT520
Up to 290 h
Talk time
K31
-
KT520
Up to 3 h 30 min
Colors
K31
Gray
KT520
Models
K31
LM-K300Q, LMK300, LGL355DL
KT520
-
Price
K31
About 130 EUR
KT520
About 70 EUR
SAR
K31
-
KT520
0.49 W/kg (head) 0.22 W/kg (body)