Screen size
BL20 New Chocolate2.4"
K31Winner: 5.7"+58%
Quick verdict
K31 leads the measured specs 13-1.
Measured wins
BL20 New Chocolate
1
spec wins
Ties
3
equal specs
K31
13
spec wins
Overall winner
Screen size
Technology
BL20 New Chocolate
GSM / HSPA
K31
GSM / CDMA / HSPA / LTE
2G bands
BL20 New Chocolate
GSM 900 / 1800 / 1900 , GSM 850 / 1800 / 1900
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
BL20 New Chocolate
HSDPA 900 / 2100
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
BL20 New Chocolate
HSPA 3.6/0.384 Mbps
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
K31
HSPA, LTE
4G bands
BL20 New Chocolate
-
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Announced
BL20 New Chocolate
2009, September. Released 2009, October
K31
2020, August 21. Released 2020, August 21
Status
BL20 New Chocolate
Discontinued
K31
Discontinued
Dimensions
BL20 New Chocolate
106.9 x 50.8 x 12.3 mm (4.21 x 2.0 x 0.48 in)
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight
BL20 New Chocolate
115 g (4.06 oz)
K31
146 g (5.15 oz)
SIM
BL20 New Chocolate
Mini-SIM
K31
Nano-SIM + Nano-SIM
Other
BL20 New Chocolate
-
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
BL20 New Chocolate
TFT, 256K colors
K31
IPS LCD
Size
BL20 New Chocolate
2.4 inches, 17.8 cm2 (~32.8% screen-to-body ratio)
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
BL20 New Chocolate
240 x 320 pixels, 4:3 ratio (~167 ppi density)
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Other
BL20 New Chocolate
Touch-sensitive hidden navigation keys
K31
-
Card slot
BL20 New Chocolate
microSDHC (dedicated slot)
K31
microSDXC
Phonebook
BL20 New Chocolate
1000 contacts, Photocall
K31
-
Call records
BL20 New Chocolate
Yes
K31
-
Internal
BL20 New Chocolate
60MB
K31
32GB 2GB RAM
Other
BL20 New Chocolate
-
K31
eMMC 5.1
Single
BL20 New Chocolate
5 MP, AF
K31
-
Features
BL20 New Chocolate
Schneider-Kreuznach optics, LED flash
K31
LED flash, panorama, HDR
Video
BL20 New Chocolate
320p@15fps
K31
1080p@30fps
Dual
BL20 New Chocolate
-
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
Other
BL20 New Chocolate
No
K31
-
Single
BL20 New Chocolate
-
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
BL20 New Chocolate
-
K31
1080p@30fps
Loudspeaker
BL20 New Chocolate
Yes
K31
Yes
3.5mm jack
BL20 New Chocolate
No
K31
Yes
WLAN
BL20 New Chocolate
No
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
BL20 New Chocolate
2.1, A2DP
K31
5.0, A2DP, LE
Positioning
BL20 New Chocolate
No
K31
GPS
Radio
BL20 New Chocolate
FM radio
K31
No
USB
BL20 New Chocolate
2.0
K31
microUSB 2.0
NFC
BL20 New Chocolate
-
K31
No
Sensors
BL20 New Chocolate
K31
Fingerprint (rear-mounted), accelerometer
Messaging
BL20 New Chocolate
SMS, EMS, MMS, EMail, Instant Messaging
K31
-
Browser
BL20 New Chocolate
WAP 2.0/xHTML, HTML
K31
-
Games
BL20 New Chocolate
Yes, 2 + Downloadable
K31
-
Java
BL20 New Chocolate
Yes, MIDP 2.0
K31
-
Other
BL20 New Chocolate
MP3/AAC/AAC+/WMA player H.264/MP4/WMV player Organizer Voice memo Predictive text input
K31
-
Type
BL20 New Chocolate
Removable Li-Ion 900 mAh battery
K31
Li-Ion 3000 mAh
Stand-by
BL20 New Chocolate
Up to 450 h
K31
-
Talk time
BL20 New Chocolate
Up to 300 min
K31
-
Colors
BL20 New Chocolate
Black
K31
Gray
SAR
BL20 New Chocolate
0.41 W/kg (head) 0.58 W/kg (body)
K31
-
SAR EU
BL20 New Chocolate
0.67 W/kg (head)
K31
-
Price
BL20 New Chocolate
About 70 EUR
K31
About 130 EUR
Models
BL20 New Chocolate
-
K31
LM-K300Q, LMK300, LGL355DL
OS
BL20 New Chocolate
-
K31
Android 10, LG UX 9.1
Chipset
BL20 New Chocolate
-
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
BL20 New Chocolate
-
K31
Octa-core 2.0 GHz Cortex-A53
GPU
BL20 New Chocolate
-
K31
PowerVR GE8320