Could someone please explain to me the difference between these 2 reels?

Basically the Steez SV TW is more refined than the Tatula and uses better internal pieces/components. The Steez won't be a long distance casting machine, but will allow you do a lot of things easily and be more efficient while fishing. The Tatula SV really is a solid reel, when using braid my distance is awesome and allows me to really huk baits out there. The new 2020 Tatula SV starts to really bridge the gap between the two with it being less than 7oz, SV, and the Zero adjuster, but the Steez will always be the flagship. I think it comes in under 6oz and you'll notice it. If money is a concern and you'd rather just settle get the Tatula or shop for a used Zillion SV, but if you want the best of the best then grab a Steez SV TW and you'll be spoiled. I own the Steez SV TW, Zillion SV, and Tatula SV. I love them all.