More battery is a big one - I love my sp4, but I think (even with the improvements with the pro) they should have added a few 100 grams for more battery. Fanle

More battery is a big one - I love my sp4, but I think (even with the improvements with the pro) they should have added a few 100 grams for more battery. Fanless i5 would be nice - my sp4 i5 isn't loud, but quiet would be better. Was hoping the new sp would be waterproof though (it's the only remaining "obvious" improvement I see. We'll that and enough gpu power to drive vr - but I suppose we're still a few years from that in a small, light, quiet battery-powered device).