Screen size
B21001.5"
K31Winner: 5.7"+74%
Quick verdict
K31 leads the measured specs 15-1.
Measured wins
B2100
1
spec wins
Ties
1
equal specs
K31
15
spec wins
Overall winner
Screen size
Technology
B2100
GSM
K31
GSM / CDMA / HSPA / LTE
2G bands
B2100
GSM 900 / 1800 / 1900
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
GPRS
B2100
Class 10
K31
-
EDGE
B2100
No
K31
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
Stereo speakers
-
3G bands
B2100
-
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
B2100
-
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Speed
B2100
-
K31
HSPA, LTE
Announced
B2100
2005, Q2
K31
2020, August 21. Released 2020, August 21
Status
B2100
Discontinued
K31
Discontinued
Dimensions
B2100
103 x 43 x 16 mm (4.06 x 1.69 x 0.63 in)
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight
B2100
73 g (2.57 oz)
K31
146 g (5.15 oz)
SIM
B2100
Mini-SIM
K31
Nano-SIM + Nano-SIM
Other
B2100
-
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
B2100
CSTN, 65K colors
K31
IPS LCD
Size
B2100
1.5 inches, 7.3 cm2 (~16.4% screen-to-body ratio)
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
B2100
128 x 128 pixels, 1:1 ratio (~121 ppi density)
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Other
B2100
Downloadable wallpapers
K31
-
Card slot
B2100
No
K31
microSDXC
Phonebook
B2100
200 x 6 fields, 7 groups
K31
-
Call records
B2100
15 dialed, 15 received, 15 missed calls
K31
-
Internal
B2100
1.3MB
K31
32GB 2GB RAM
Other
B2100
20 calendar items
K31
eMMC 5.1
Single
B2100
VGA
K31
-
Video
B2100
No
K31
1080p@30fps
Dual
B2100
-
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
Features
B2100
-
K31
LED flash, panorama, HDR
Other
B2100
No
K31
-
Single
B2100
-
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
B2100
-
K31
1080p@30fps
Loudspeaker
B2100
No
K31
Yes
Alert types
B2100
Vibration; Downloadable polyphonic ringtones
K31
-
3.5mm jack
B2100
No
K31
Yes
WLAN
B2100
No
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
B2100
No
K31
5.0, A2DP, LE
Positioning
B2100
No
K31
GPS
Radio
B2100
No
K31
No
USB
B2100
K31
microUSB 2.0
NFC
B2100
-
K31
No
Sensors
B2100
K31
Fingerprint (rear-mounted), accelerometer
Messaging
B2100
SMS, EMS, MMS
K31
-
Browser
B2100
WAP 2.0/xHTML
K31
-
Games
B2100
2 + downloadable
K31
-
Java
B2100
Yes
K31
-
Other
B2100
Predictive text input Organizer Voice memo
K31
-
Type
B2100
Removable Li-Ion 780 mAh battery
K31
Li-Ion 3000 mAh
Stand-by
B2100
Up to 250 h
K31
-
Talk time
B2100
Up to 3 h 30 min
K31
-
Colors
B2100
K31
Gray
Models
B2100
-
K31
LM-K300Q, LMK300, LGL355DL
Price
B2100
-
K31
About 130 EUR
OS
B2100
-
K31
Android 10, LG UX 9.1
Chipset
B2100
-
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
B2100
-
K31
Octa-core 2.0 GHz Cortex-A53
GPU
B2100
-
K31
PowerVR GE8320