[slkissinger]

I love the comparison table, but unless I'm blind (likely), that particular table talks about weight and resolution, but not about physical size. I did some quick google for sizes of a couple 6" and 5" ones. I know 5" ones (new) aren't available, but pretty sure one can still find them on resale sites.

Sorry for the poor formatting, but that's in millimeters, length/width/depth, weight in grams, and then resolution. Looks like 6" ones are comparable. but if you want the smallest, and don't mind a 5" screen vs. 6"; maybe try to find a Kobo Mini on the 2nd hand market.

kobo clara hd 159.6x110x8.3 166 1072x1448
Paperwhite 4 167x116x8.2 182 1072x1448
PocketBook Touch HD 3 161.3x108x8 155 1072x1448

5" screens, no longer made
Kobo Mini 133x102x10 134 600x800
Sony PRS-350 145x104.4x8.3 155 600x800

Personally, I can fit the Clara HD in a pocket just fine. The paperwhite 4 dimensions don't appear to be that much bigger... but if your pocket(s) are just that tiny bit too snug by 6 mm, then maybe you would want a kobo clara hd.