LG K40
#3489
vivo V9 Youth
#3803Category Breakdown
LG K40
vivo V9 Youth
Performance
62.662.7
Camera
27.919.1
Display
56.558.9
Battery
24.225.9
Build
67.971.8
Connectivity
64.550.5
Audio
8.98.9
Overall
40.638.4
Summary
- The LG K40 features a 5.7-inch IPS LCD display with a resolution of 720 x 1440 pixels, while the vivo V9 Youth has a larger 6.3-inch IPS LCD with a sharper 1080 x 2280 pixel resolution, providing better clarity.
- In terms of performance, the K40 is powered by a Mediatek Helio P22 chipset, whereas the V9 Youth utilizes a Qualcomm Snapdragon 450, both with octa-core CPUs but differing in processing efficiency.
- The camera systems are similar, with both offering a 16 MP rear camera and 1080p video recording, but the V9 Youth has a superior 16 MP front camera compared to the K40's 8 MP.
- Battery capacity is slightly higher in the V9 Youth at 3260 mAh compared to the K40's 3000 mAh, though both lack fast charging.
- Both devices run on Android 8.1, but the K40 uses LG UX 7 while the V9 Youth features Funtouch 4, offering different software experiences.
- Build quality is comparable, with the K40 having a plastic back and frame, while the V9 Youth includes Gorilla Glass 3 on the front for added durability.
Side-by-side Specification Comparison
LG K40
vivo V9 Youth
General
Release Date
2019
2018
Announced
2019
2018
Description
Also known as LG K12+, LG K12 Plus, LG X4 (2019)Versions: LMX420EMW
Also known as Vivo Y85 in China
Display
Size
5.7"
6.3"
Type
IPS LCD
IPS LCD
Resolution
720 x 1440 pixels, 18:9 ratio (~282 ppi density)
1080 x 2280 pixels, 19:9 ratio (~400 ppi density)
PPI
720
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass 3
Performance
Chipset
Mediatek MT6762 Helio P22 (12 nm)
Qualcomm SDM450 Snapdragon 450 (14 nm)
CPU
Octa-core 2.0 GHz Cortex-A53
Octa-core 1.8 GHz Cortex-A53
GPU
PowerVR GE8320
Adreno 506
Memory
32GB 2GB RAM, 32GB 3GB RAM
32GB 4GB RAM, 64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
16 MP, f/2.0, 1/3.1", 1.0µm, PDAF
16 MP, PDAF2 MP, (depth)or13 MP, PDAF2 MP, (depth) (China only)
Main Camera Features
LED flash, panorama, HDR
Dual-LED flash, HDR, panorama
Front Camera
8 MP, f/2.0
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Front Camera Features
LED flash
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
3260 mAh
Battery Details
Li-Ion 3000 mAh, non-removable
Li-Ion 3260 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
153 x 71.9 x 8.3 mm (6.02 x 2.83 x 0.33 in)
154.8 x 75.1 x 7.9 mm (6.09 x 2.96 x 0.31 in)
Weight
144 g
150 g
Materials
Glass front, plastic back, plastic frame
Glass front (Gorilla Glass 3), plastic back, plastic frame
Colors
Black, New Moroccan Blue, New Platinum Gray
Champagne Gold, Pearl Black, Red
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
4.2, A2DP, LE
NFC
✓
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 8.1 (Oreo), LG UX 7
Android 8.1 (Oreo), Funtouch 4
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass