Screen size
K31Winner: 5.7"+58%
KC5502.4"
Quick verdict
K31 leads the measured specs 14-1.
Measured wins
K31
14
spec wins
Overall winner
Ties
2
equal specs
KC550
1
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
KC550
GSM
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
KC550
GSM 900 / 1800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
KC550
-
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
KC550
-
Speed
K31
HSPA, LTE
KC550
-
GPRS
K31
-
KC550
Class 12
EDGE
K31
-
KC550
Class 12
Announced
K31
2020, August 21. Released 2020, August 21
KC550
2008, May
Status
K31
Discontinued
KC550
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
KC550
96.9 x 51.4 x 14.9 mm (3.81 x 2.02 x 0.59 in)
Weight
K31
146 g (5.15 oz)
KC550
110 g (3.88 oz)
SIM
K31
Nano-SIM + Nano-SIM
KC550
Mini-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
KC550
-
Type
K31
IPS LCD
KC550
TFT, 256K colors
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
KC550
2.4 inches, 17.8 cm2 (~35.8% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
KC550
240 x 320 pixels, 4:3 ratio (~167 ppi density)
Other
K31
-
KC550
OS
K31
Android 10, LG UX 9.1
KC550
-
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
KC550
-
CPU
K31
Octa-core 2.0 GHz Cortex-A53
KC550
-
GPU
K31
PowerVR GE8320
KC550
-
Card slot
K31
microSDXC
KC550
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
KC550
12MB
Other
K31
eMMC 5.1
KC550
-
Phonebook
K31
-
KC550
1000 entries, Photocall
Call records
K31
-
KC550
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
KC550
-
Features
K31
LED flash, panorama, HDR
KC550
Schneider-Kreuznach optics, LED flash
Video
K31
1080p@30fps
KC550
480p
Single
K31
-
KC550
5 MP, AF
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
KC550
-
Video
K31
1080p@30fps
KC550
-
Other
K31
-
KC550
No
Loudspeaker
K31
Yes
KC550
Yes
3.5mm jack
K31
Yes
KC550
No
Alert types
K31
-
KC550
Vibration; Downloadable polyphonic, MP3 ringtones
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
KC550
No
Bluetooth
K31
5.0, A2DP, LE
KC550
2.0, A2DP
Positioning
K31
GPS
KC550
No
NFC
K31
No
KC550
-
Radio
K31
No
KC550
FM radio
USB
K31
microUSB 2.0
KC550
Proprietary
Sensors
K31
Fingerprint (rear-mounted), accelerometer
KC550
Accelerometer
Messaging
K31
-
KC550
SMS, EMS, MMS, Email
Browser
K31
-
KC550
WAP 2.0/xHTML
Games
K31
-
KC550
Yes, incl. motion-based + downloadable
Java
K31
-
KC550
Yes, MIDP 2.0
Other
K31
-
KC550
MP3/WAV/AAC++/WMA/RA player MP4/H.264/RV player Photo editor Voice memo Speakerphone Organizer TV-out
Type
K31
Li-Ion 3000 mAh
KC550
Removable Li-Ion 900 mAh battery
Stand-by
K31
-
KC550
Up to 450 h
Talk time
K31
-
KC550
Up to 6 h
Colors
K31
Gray
KC550
Black, Gray, Pink
Models
K31
LM-K300Q, LMK300, LGL355DL
KC550
-
Price
K31
About 130 EUR
KC550
About 90 EUR
SAR
K31
-
KC550
0.28 W/kg (head) 0.32 W/kg (body)