I have the Roadie 3, purchased just over a month ago.
The unit uses a built in rechargeable battery. The unit charges quickly with usb-c cord (included), and should last dozens of tunings and such.The battery is non- serviceable by the owner.
The unit is a tuner, metronome and string winder/unwinder. This unit tunes a-lot of different stringed instruments, and you have an assortment of different chord tunings. Open G, Open D.
Uses a ios/ android app to update firmware. It does not provide updates through your computer, only through phone app. And the app provides more functionality to the Roadie 3, so if your a non- mobile phone user- there is no way to update the unit, or access the added features of the app.
Its compact, easy to read screen and pretty straightforward to use.
The only issue I am concerned about is the non-serviceable internal battery. No mention by the company in regards to future replacement - is the unit a throw away when the battery is no longer useful??? Batteries don't last forever.
Secondly, would be the motor that provides the torque to tune the strings. Its a small package, I can’t see the motor lasting that long. Fingers crossed
The unit comes with a 1 year warranty. You can buy an extended warranty on the companies website.