Choose Class 2 if the scooter will mainly be used on pavements, in shops, around local neighbourhoods and for shorter trips where 4mph is enough. Prioritise compact size, manageable weight, turning circle, seat comfort, battery range and how easy it is to charge or store.
Choose Class 3 if road sections are a regular part of the journey and the rider is comfortable with a larger machine. Prioritise confirmed 8mph road capability, 4mph pavement mode, lights, indicators, hazard lights, mirrors, horn, brakes, range and road visibility.
If you are unsure, do not start with the most discounted product. Start by writing down the longest typical journey, whether it includes roads, where the scooter will be stored, who will lift it if needed, and what information is missing from the listing. Then compare Mobility Scooters that answer those points clearly.