Samsung wins for the lightest tablet.
As for the iPad Mini 4 gram weight being higher than the Asus ZenPad S 8.0 “Pro,” chalk that up to Google conversion math. Apple lists 0.65 pounds, not ounces or grams, on their U.S. site.
That said, the iPad Mini 4 probably kicks the Samsung’s ass because it has the guts of the iPad Air 2, which is a supernaturally-powerful beast from the pit.
Same-day update: It turns out the new Mini 4 does not have the guts of the iPad Air 2. It’ll use the A8 CPU, not the A8x CPU of the Air 2. Which means I’ll have to go through an entire new round of Google Books PDF tests on the beast. Thanks for not making my life easier, Apple!