You asked
Canon eos 5d mark iv vs canon eos 6d mark ii?
Here is what the site says about that.
From Canon EOS 5D Mark IV: Canon EOS 5D Mark IV: A DSLR by Canon with a 30.4-megapixel full frame sensor, announced in 2016. A workhorse, and a good used buy for anyone who already owns EF lenses. Specs - Maker: Canon - Mount: Canon EF - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 30.4 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2016 - Type: DSLR Focal lengths ...
From Canon EOS 6D Mark II: Canon EOS 6D Mark II: A DSLR by Canon with a 26.2-megapixel full frame sensor, announced in 2017. Specs - Maker: Canon - Mount: Canon EF - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 26.2 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2017 - Type: DSLR Focal lengths on it Full frame is the reference size: lenses frame as marked. A lens ...
Quoted from this site's pages.