LG
LG K40

LG
LG Q8 (2018)

Features
Accelerometer, proximity
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Memory
microSD, up to 32 GB, 16GB 2GB RAM
microSD, up to 1 TB (dedicated slot), 32GB 2GB RAM, 32GB 3GB RAM
microSD, up to 1 TB (dedicated slot), 64GB 4GB RAM
Display
720 x 1280 pixels, 16:9 ratio (~294 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 5.0 inches, 68.9 cm2 (~66.3% screen-to-body ratio)
720 x 1440 pixels, 18:9 ratio (~282 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 5.7 inches, 83.8 cm2 (~76.2% screen-to-body ratio)
1080 x 2160 pixels, 18:9 ratio (~389 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 6.2 inches, 99.7 cm2 (~80.2% screen-to-body ratio)
Battery
Removable Li-Ion 2500 mAh battery
Non-removable Li-Ion 3000 mAh battery
Non-removable Li-Po 3300 mAh battery, Fast battery charging 18W (Quick Charge 3.0)
Main Camera
1080p@30fps, LED flash, HDR, 8 MP, AF
1080p@30fps, LED flash, panorama, HDR, 16 MP, f/2.0, 1/3", 1.0µm, PDAF
1080p@30fps, LED flash, panorama, HDR, 16 MP, PDAF