This is just my perspective. I'm new to shooting and even newer to Glocks. I was at the gun shop today and asked to see both. They had several G43's and one G26 which was right beside one of the G43's. Looking at them side by side I didn't notice a whole lot of difference. I was handed the G26 first and my first thought was that it felt a lot like my G19 minus the room for my pinky. Then I was handed the G43 and there was a noticeable difference in weight. I could definitely tell it was a smaller pistol. I also put the G43 in the pocket of my carhartt's and it felt fine. I previously owned a Shield and I never felt it was a good pocket option. However, the G43 (with a trigger guard holster) would rival my 442 revolver as a pocket gun. Since I have a 19, I wouldn't consider the 26 if I was looking for a smaller Glock. I would definitely choose the G43. I like the interchangeability of the 26, but if I wanted more capacity, I would just carry the 19. That being said, I haven't shot either. The clerk said that for CC, the 43 would be great but that it wasn't as much fun to shoot. The range has a G43 and G26 rental, so I'll probably try them both out at some point in the future.