The “smart” part of your smart timer will either be a tuyasmart app. In fact, you’ll probably spend more time in the app than you will fiddling with the physical timer. Look for features you’re actually going to use! For instance, many smart timers support Alexa voice commands, but this doesn’t help you if you don’t use Alexa. Look primarily for features like fully customizable scheduling. We’re well past the days of mechanical, pin-operated timers. If you want to run your hose for five minutes twenty times a day, you should be able to.