As one of its daily deals, Woot via Amazon offers the factory-refurbished 1st-generation Rachio Iro 8-Zone Smart WiFi Irrigation Controller for iOS or Android, model no. 8ZULW, for $94.99 with free shipping. That's $30 under our March mention of a refurb and the best price we've seen. (It's currently $149 less than a new one.) It automatically adjusts your watering schedule based on weather, seasonality, zone-type, and regional characteristics and can be controlled via the Rachio iOS or Android app. It's also compatible with the Wink home automation system and works via the Wink iOS or Android app (no Wink hub is required).
Also available is the factory-refurbished 1st-generation Rachio Iro 16-Zone Smart Irrigation Controller, model no. 16ZULW, for $104.99 with free shipping. That's $5 under our April mention of a new one and the best price we've seen. (It's now $45 less than a new one.) A 1-year Rachio warranty applies to each item. Both deals end today.