The URLIFE F1L is one of the cheapest folding electric bikes on Amazon UK, and at this price the questions that matter are what you give up and whether you can legally ride it where you plan to. The short version: it folds small, it is heavier than it looks, and its throttle mode puts it outside the UK's EAPC rules.
This is the detail most listings for small folders gloss over. The F1L folds down to a genuinely small package, but 24.5kg is a two-handed lift. Rolling it into a lift or dropping it into a boot is fine. Carrying it up a flight of station steps every day is not. If the bike has to be carried regularly, weight should decide the purchase before price does.
Short, flat trips where the bike is stored somewhere tight: a campus, a caravan or motorhome, a private site, or the last couple of miles from a car park. The 14 inch wheels and short wheelbase make it nimble at low speed and twitchy at higher speed, and they feel every pothole despite the suspension. With a single-speed drivetrain there is no low gear for hills, so the motor does most of the climbing and the range falls accordingly.
Amazon's technical details list the assist type as "Pedelec and Throttle-on-demand". A throttle that drives the bike without pedalling above walking pace takes it outside the EAPC rules, whatever the motor rating says, so on public roads and cycle paths it is legally a moped. Our guide to UK e-bike law explains the test, and the bikes we have confirmed as compliant are listed under UK Road Legal (EAPC).
If you need a folder for the road, the ADO Air20S is a 20 inch belt-drive bike and the MiRiDER 24 is a British-designed step-through. Both cost several times as much, which is roughly what a compliant, well-supported folding e-bike costs.