Another very helpful tip...
If you launch S-Finder and type in the word 'fickle' ...
... it brings up your contact details
Lol. Enjoy. Glad to see that this may end the silly war between devices. The reality is that both the S5 & M8 are great fast handsets. Both with their ups and downs.
S5
Pros - fast, feature packed (arguably too feature packed for its own good) and a great camera + waterproof. Finger print scanner. Great screen. Battery life is very good.
Cons - Samsung bloat and memory heavy skin. Lack of design consistency throughout the stock apps and GUI. Knox Warranty Void !!!
M8
Pros - very optimised software, even faster (though at this stage were talking micro seconds between devices) boom sound with its clearer fuller crisper audio, good rom/root support without banjaxing your warranty. Great battery life.
The best 4mp camera but....
Cons - that's still only 4mp and the u-focus thing could have been done in software. Metal construction may be a little heavy for some. Not waterproof certified.
So yeah, both are great devices and both devices do good things more than they do things wrong. Most folks would be ok with either device, as for preferences it boils down to where you stand on the things important to you.
I'd personally love a mythical hybrid of the devices where we had
Samsung's water-proof, great screen and 16mp camera technology inside HTC's device design ethos, with sense 6, boom sound and friendly rom community support.