l am going to comment as l've ridden the Onebot and the Mirider while looking for bikes to take in the caravan.
l am a regular Ebike rider (3,000 miles in the last 12 months on my Kona Remote 160) so didn't have high hopes for these folding Ebikes tbh.
As the Kona is full suspension machine that cost over 5k
The Onebot was a used one that a friend owns and it rides okay. lt feels well made and folds easily, it will do 15 mph easily on the flat and can be ridden without the motor assist if you want.
The Mirider was a 2022 model l tested at my LBS, l went out for an hour on it although the battery died after 45 minutes of thrashing.
I have to say, the Mirider is definitely better. The assistance is smoother to engage (although not as smooth as my Kona, but that's a torque sensing system rather than cadence)
The brakes are better, although the Onebot brakes work fine. l can't comment on wet weather durability as we have a bit of a heatwave going on here at the moment. The Mirider is lighter and the seat post adjusts more, although at 5ft 6in l fitted fine on both bikes.
The display is better on the Mirider and it has more assistance modes, so you could probably make the battery last longer by careful tweaking of the assist level on a ride. My missus won't do this though.
The Mirider has a bigger battery so it should go further, l rinsed the battery in 14 miles but that was here in the Derbyshire Peak District where everything is either up or down, and l was in assist mode 4 (second highest) most of the time.
As a comparison my Kona has the Shimano 504Wh battery and l've just got back from a 24 mile ride with one bar showing, which means the battery is down to under 20%
So, Mirider or Onebot? You can buy two Onebots for the price of one Mirider, for occasional holiday use the Onebot would probably be fine but l think for anything else my vote goes to the Mirider.
Also l like the fact that l can take the bike back if it's faulty or needs any work. l've ordered one in the grey colour so will report back when we've got it.
l will be going out for rides with my friend on his Onebot so further updates will follow.