It's been a couple of years since I held one but if memory serves me, it's about 2/3 to 3/4 the size of the 75. It's not a small gun but not a large one either. It is the ONLY .380 that has ever caught my eye as being anything other than junk; not even the Walthers tempt me. Now that said, you probably find a quality 9mm about the same size with the same controls and have the extra power of the 9 over the .380. If I had the money, I'd own an 83, just because I like it. Silly, I suppose.
IMHO, the Keltec, Kahr, Ruger LSD... remind me of cheap toys made in China!!