For those considering purchasing - as a Watchy owner - if you're looking for a polished smartwatch product that you can put on your wrist and not think about how it works - this isn't that product. It's still rough around the edges, uploading new watchfaces takes some work, phone notifications aren't implemented yet, no case, etc.
But if you're intrigued by the idea of hacking on ESP32s, WiFi, BLE and/or e-ink, as a wearable hackable dev device, Watchy can't be beat. It's a lot of fun. Think of it as a wifi/BLE-enabled Arduino on your wrist.