It seems everything is becoming "smart" nowadays, and while we expect it of the likes of phones and watches, even for us GearCulture gadget-heads, this one really took the biscuit. In fact, the BluFit Bottle works with your phone to keep you healthy and hydrated, tracking how much water you've consumed, where and when. Taking into account your age, weight, temperature and whatnot, it'll then set out a plan to ensure your body's always performing at its very best.