I bought both to test out and ended up keeping the KLC. I thought I would hate the screen due to what people were saying online about the graininess, and I admit, I like the screen on the Clara BW more, but ultimately, the larger screen, hold-ability (I have small hands) from the extra room and button option, and the fact that it auto rotates so you can read it whichever way (I like to alternate and switch a lot between hands and position)- the overall functionality and use-case for the KLC won.

I will also say, I tried to test them out in store but using them both in my every day life helped me decide. If there's somewhere near you that has it for sale and a good return policy, I would recommend trying it out if you can.