Screen size
K31Winner: 5.7"+30%
Lucid 4G VS8404.0"
Quick verdict
K31 leads the measured specs 12-1.
Measured wins
K31
12
spec wins
Overall winner
Ties
4
equal specs
Lucid 4G VS840
1
spec wins
Screen size
Technology
K31
GSM / CDMA / HSPA / LTE
Lucid 4G VS840
CDMA / EVDO / LTE
2G bands
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Lucid 4G VS840
CDMA 800 / 1900
3G bands
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Lucid 4G VS840
CDMA2000 1xEV-DO
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
equal specsSD card
equal specsStereo speakers
Lucid 4G VS840
13
Speed
K31
HSPA, LTE
Lucid 4G VS840
EV-DO Rev.A 3.1 Mbps, LTE
Announced
K31
2020, August 21. Released 2020, August 21
Lucid 4G VS840
2012, March. Released 2012, April
Status
K31
Discontinued
Lucid 4G VS840
Discontinued
Dimensions
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Lucid 4G VS840
119.1 x 62.2 x 11.4 mm (4.69 x 2.45 x 0.45 in)
Weight
K31
146 g (5.15 oz)
Lucid 4G VS840
142 g (5.01 oz)
SIM
K31
Nano-SIM + Nano-SIM
Lucid 4G VS840
Micro-SIM
Other
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Lucid 4G VS840
-
Type
K31
IPS LCD
Lucid 4G VS840
IPS LCD, 256K colors
Size
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Lucid 4G VS840
4.0 inches, 45.5 cm2 (~61.5% screen-to-body ratio)
Resolution
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Lucid 4G VS840
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Protection
K31
-
Lucid 4G VS840
Corning Gorilla Glass
OS
K31
Android 10, LG UX 9.1
Lucid 4G VS840
Android 2.3.6 (Gingerbread), upgradable to 4.0.4 (Ice Cream Sandwich)
Chipset
K31
Mediatek MT6762 Helio P22 (12 nm)
Lucid 4G VS840
Qualcomm Snapdragon S3
CPU
K31
Octa-core 2.0 GHz Cortex-A53
Lucid 4G VS840
Dual-core 1.2 GHz Scorpion
GPU
K31
PowerVR GE8320
Lucid 4G VS840
Adreno 220
Card slot
K31
microSDXC
Lucid 4G VS840
microSDHC (dedicated slot)
Internal
K31
32GB 2GB RAM
Lucid 4G VS840
8GB 1GB RAM
Other
K31
eMMC 5.1
Lucid 4G VS840
-
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
Lucid 4G VS840
-
Features
K31
LED flash, panorama, HDR
Lucid 4G VS840
LED flash
Video
K31
1080p@30fps
Lucid 4G VS840
1080p@30fps
Single
K31
-
Lucid 4G VS840
5 MP, AF
Single
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Lucid 4G VS840
VGA
Video
K31
1080p@30fps
Lucid 4G VS840
Loudspeaker
K31
Yes
Lucid 4G VS840
Yes
3.5mm jack
K31
Yes
Lucid 4G VS840
Yes
WLAN
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Lucid 4G VS840
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot, DLNA
Bluetooth
K31
5.0, A2DP, LE
Lucid 4G VS840
3.0, A2DP, EDR
Positioning
K31
GPS
Lucid 4G VS840
GPS, A-GPS
NFC
K31
No
Lucid 4G VS840
-
Radio
K31
No
Lucid 4G VS840
No
USB
K31
microUSB 2.0
Lucid 4G VS840
microUSB 2.0
Sensors
K31
Fingerprint (rear-mounted), accelerometer
Lucid 4G VS840
Accelerometer, proximity
Other
K31
-
Lucid 4G VS840
MP4/DivX/Xvid/H.264/WMV player MP3/WAV/WMA/eAAC+ player Document editor Video editor Organizer Voice memo/dial/commands Predictive text input (Swype)
Type
K31
Li-Ion 3000 mAh
Lucid 4G VS840
Removable Li-Ion 1700 mAh battery
Stand-by
K31
-
Lucid 4G VS840
Up to 350 h
Talk time
K31
-
Lucid 4G VS840
Up to 8 h
Colors
K31
Gray
Lucid 4G VS840
Black
Models
K31
LM-K300Q, LMK300, LGL355DL
Lucid 4G VS840
-
Price
K31
About 130 EUR
Lucid 4G VS840
About 200 EUR
SAR
K31
-
Lucid 4G VS840
1.14 W/kg (head) 1.17 W/kg (body)