Great to see the Sketch team continually improving the product however I agree with the other comments. Having spent £2.99 purchasing the original Mirror app I was pretty disappointed it did not, and still does not support Android devices, not sure why Android is considered a second class citizen?
For those who don’t know about it there is a work around of sorts; thanks to the awesome plugin by Marc Schwieterman which works alongside Bjango’s Skala preview. You can follow the process here https://bjango.com/help/skalapreview/sketch/
I do find this workaround clunky in comparison to the iOS workflow due to not being live and having to effectively ‘print screen’ each time I need to see my designs on a device but it’s still the best option available until the Sketch team address this.
Hope this helps you all out guys and girls