Yeah It's all got confusing.
The S5 has a removable battery, micro SD card slot and waterproofing but at the same time it's almost two years old and will slow down soon and wont be updated for much longer.
The note 4 has a removable battery and SD card and more importantly has the S-pen and a large high resolution display. It is also the most current note device available to me in the UK. Quick charging. However like the S5 it is older. It's not latest and greatest.
Then we have the S6 edge plus - Latest and greatest, beautiful design, beastly camera. Improved fingerprint scanner, Samsung pay compatible, themes, has a very efficient processor, 4 GB of ram and SSD like memory. Even better QHD display. Wireless charging and quick charging. Plus the edge features. However it lacks a removable battery and SD card slot and this is not mittigated by having 128GB internal storage.
I'm in a conundrum.