I happen to love the Kelly Wallet - it is extremely functional, great for grab-and-go. Fits an iPhone 6+ and a thin lip gloss, too. Fabulous for day. However, I feel that size-wise it is a bit too small to be a real clutch - at least, proportionally it is a bit too small for me, even though I have actually used it as a clutch for dinner. In that regard, I think a Constance wallet is a bit better.
This is, however, completely a matter of taste, as I think generally that the mini-jige looks too small as well. If that is what you're choosing between, definitely go for a Kelly or Constance wallet instead as they are more functional.