Nokia
Nokia 5.1 Plus (Nokia X5)

Nokia
Nokia 3.1

Features
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
proximity, Fingerprint (rear-mounted), Accelerometer, Compass, gyro
Accelerometer, gyro, proximity, compass
Memory
microSD, up to 256 GB (dedicated slot), 32 GB, 3 RAM or 16 GB, 2 GB RAM
eMMC 5.1, microSDXC (uses shared SIM slot), 32GB 3GB RAM, 64GB 6GB RAM, 64GB 4GB RAM
microSD, up to 256 GB, 32 GB, 3 RAM or 16 GB, 2 GB RAM
Display
Corning Gorilla Glass (unspecified version), 1080 x 2160 pixels, 18:9 ratio (~439 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 5.5 inches, 78.1 cm2 (~73.1% screen-to-body ratio)
720 x 1520 pixels, 19:9 ratio (~287 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 5.86 inches, 85.7 cm2 (~79.6% screen-to-body ratio)
Corning Gorilla Glass (unspecified version), 720 x 1440 pixels, 18:9 ratio (~310 ppi density), IPS LCD Capacitive Touchscreen, 16M Colors, 5.2 inches, 69.8 cm2 (~69.4% screen-to-body ratio)
Battery
Up to 19 h (3G), Non-removable Li-Ion 2970 mAh battery, Up to 53 h
Non-Removable Li-Ion 3060 mAh
Up to 18 h (3G), Non-removable Li-Ion 2990 mAh battery, Up to 84 h
Main Camera
1080p@30fps, Dual-LED dual-tone flash, HDR, panorama, 16 MP, PDAF
1080p@30fps, LED flash, HDR, Panorama, 13 MP, f/2.0, PDAF
5 MP, f/2.4, (depth)
1080p@30fps, LED flash, HDR, panorama, 13 MP, f/2.0, AF