Water boffins inform me that 8 glasses of water a day is what you should be aiming for, the truth is though, who has really has time to keep track of that? Oh, the Bluetooth Smart Cup seems to have plenty of time on his h&. Compatible with any smartphone that has access to the App or Google Store, the Bluetooth Smart Cup makes its living by syncing your phone with the accompanying cup & keeping track of your daily intake & hydration levels on its all to handy application. Far from just relying on the App to impress you, the cup-side Bluetooth Smart Cup is also not too shabby itself, with its stainless steel make-up & 370ml volume more than sufficient. Very smart cup