Riding a Onewheel for the first time is an exhilarating experience, and while you may never want to get off your Onewheel, at some point you're going to need to!
There's a few different ways you can dismount your Onewheel safely
1. Heel lift Method - The preferred method to dismount the board is to slow the board to a standstill by leaning backward to decelerate. Then once at a standstill, you can lift the heel of the foot that is on the sensor and the board will disengage. The board is designed to disengage when one sensor does not detect pressure at a speed slower than 2 mph.
2. Simplestop - On boards released after the Onewheel XR, you can dismount your board if you have the Simplestop feature turned on within the Onewheel app. Simplestop will need to be turned on in the app and is noted by the "Shaka" symbol 
️. With Simplestop enabled on in the app, the rider can slow down to a stop by leaning backward to decelerate. Once stopped, slowly lean back, the board will travel a few inches backward then the tail of the board will gently lower to the ground, allowing the rider to step off. We recommend practicing this while holding onto something sturdy while you get a feel for it. Once comfortable you will find it a convenient way to get off the board wherever you go.
3. Bailing - Another method for dismounting the Onewheel is to jump off the board once you have reached a standstill. Make sure to jump off with both feet simultaneously and only once you have reached a complete stop. This is not a preferred method to dismount as there is a chance your board will tip over on its side and possibly scratch the rails. If you jump off the board while at speed, the board can continue a short way without a rider and cause damage or risk of injury.
For a video that describes dismounting and more, check the link below!