Hidrate Spark 2.0 Smart Water Bottle The Bluetooth-enabled Hidrate Spark 2.0 Smart Water Bottle ($45) works with a phone app to make sure you are drinking enough water each day. It's BPA-free, battery-power, dishwasher-safe and — this is the coolest part — it lights up when you have gone too long without hydrating! Image Source: Urban Outfitters Hidrate Spark 2.0 Smart Water Bottle $45 from urbanoutfitters.com Buy Now