Staying properly hydrated comes down to more than just drinking oodles of water. LifeFuels' Smart Nutrition Bottle removes some of the guesswork. The anodized aluminum, 16.9 oz. vessel precisely measures water intake, while also adding electrolytes, antioxidants, and vitamins to the mix — along with flavor — via FuelPods. Three 'Pods can be loaded at a time, good for up to 90 beverages, and can be mixed and matched as needed via the companion app, which tracks consumption, nutrients, and hydration progress over time. The bottle's rechargeable battery lasts up to four days between charges, and additional FuelPods can be purchased right from the app.