$100, mode.co Give it a few years, and there will no longer be such a thing as an unanswerable question about weed. Mode, for its part, will take care of how much did I just smoke, how long should I inhale, what's in this strain, and did I like that strain's high last time I tried it, to name a few. The Mode device is universal, so it'll support your inserts of choice, and the data it collects from the insert and your usage is funneled to an app that'll tell you most of what you need to know about your own weed-smoking lifestyle. It even has haptic feedback to signal your hand it's time to exhale. Get ready to see cannabis tech like this flood the market.