I have download the Sia-UI Wallet and got shock that it need download the whole blockchain with it about 20GB at the moment. So I was looking for a lite wallet . Have found
https://wallet.siacentral.com/ But this one is an online wallet but I prefer a desktop wallet. Does anyone know a desktop lite wallet?
Try it:
https://www.siawallet.io/I have not personally used this lite wallet, but it looks like this is what you are looking for.