Here are a few others to consider. Glock 26, Sig P250sc, Sig P232, Glock 29, Sig P239.
I've looked at or owned some of these .........
Glock 26 ...... owned 2 over the years; felt overly thick/chunky to me... width 1.25" IIRC..... never warmed to the Glock's trigger(s)
Sig 250 I think I've held one.....do own a compact Sig 245; about the same size and weight.
Sig 232.... nice gun, dates to the 1970s; same overall size but lighter w/ alloy frame but heel mag release turned me off....
Glock 29... double stack so thick like the 26 (and 27) 10mm ... I don't need another round to stock..... I'm invested in the 9mm and 45.
Sig239 about the size of my 3913/6906 and close to my Sig 245.
Of the five the Sig230/232 would be close in size and about 6oz lighter IIRC ..... almost got one in the 80s.
The others are IMO more in the same class as my 3913 and Sig 245.
Not saying they aren't good guns and if I was starting over I would consider them all.... but ''for me" none are worth the $$$$$ investment in not only the gun; but 4 extra magazines and holsters.... to replace my existing Walther autos, mags, holsters and ammo!
Maybe the comparison I'm making is; replacing an existing gun vs. buying
a new 'niche" gun too fill the role of my PPK. Replacing a gun I own and carry with something newer ..... requires more than a "marginal" increase in size weight or performance.