I don't have a picture of a 4" Model 10, but I can show you a 4" Model 15 and a Hi Power.
The first major difference is in the widths involved. The Hi Power's width is pretty evenly distributed with the grip being the widest but with the slide not being far behind along its entire length, while the revolver is widest in the cylinder. If you avoid Target grips the width is the butt can be a bit less.
What that means is that a revolver often feels thinner over all than a semi-auto pistol, and it can be easier to conceal and more comfortable.
Probably the most critical difference is the distance from trigger guard to end of barrel, as that affects how low the end of the barrel is in a OWB or IWB holster. The muzzle of a 4" K frame revolver rides about an inch lower than a Hi Power with it's 4.685" barrel. Plus the revolver is longer in depth from top strap to bottom of trigger guard than a Hi Power is from top of slide to bottom of trigger guard, and that is reflected in the size and shape of the holster. On the other hand, the more circular shape of a revolver holster tends to blend and conceal a bit better than the more rectangular shape of a semi-auto holster.
So there are pros and cons, but the two are just "different"
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Personally, I carried a Hi Power IWB for years and had no issues with it. I also carried a 3" Model 13 revolver IWB for years and had no issues with it either.
However a 4" K frame revolver ends up with the muzzle being about 1" lower, and that extra 1" is enough to make is impractical for IWB carry, when sitting down, bending, etc.
Here's a 2 1/8" Model 60.
A 3" SP101 or Model 60 is a very close match to a Hi Power in length and height, and a clear winner in width.
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IMHO, a 3" K frame is as close to perfection as it gets for a concealed carry revolver and compares well to a Hi Power, but "feels" nicer in all day concealed carry due to the thinner barrel as opposed to the slide and barrel on the Hi Power.