The battery capacity itself doesn't tell the whole story.
Juiced and Stromer need high capacity battery because of hub drive.
Hub drive, by its nature, requires a lot of energy due to its mechanical / physical disadvantage.
Mid drive on the other hand, is very efficient. That's why they don't need big battery to run long distance.
Did you actually compare the spec sheet? Mid drive ebikes tend to run long distance despite having small/compact battery.
Also why do you want a hub drive?
I ride Juiced myself, because the price was good and those Yamaha, Bosch or Shimano mid drive systems are typically very expensive.
If you don't like EU restriction of 25km/h (15mph), you can get it unlocked
https://www.ebiketuning.com/
Here's a video of unrestricted mid drive ebike.