The Smart is made finer than an e-up, clearly, inside no painted sheet metal, but cladding parts and more design. In contrast to the ForTwo (especially the convertible), I see less reason for being with the Forfour. The Twingo ZE has a range of 180 km according to the WLTP standard, Smart approx. 128 km. However, I would hardly buy a Renault, even if it is very similar to the Smart. The E-Up is the most universal with its range. However, the Smart has the beautiful HR drive and the small turning circle, as well as 22 kW AC, which is often more practical than DC charging (e-up) because it is cheaper and more common.
The 22 kW charger is already super, makes the Smart more universal. I also visit my mother with the convertible, 270 km there and back every day. It takes longer than with our hybrid, but I drive much cheaper. The only disadvantage of the 22 kW charger is the efficiency when charging with 2.3 kW. The small 3.7 kW charger is then more efficient.
Btw: I have no problems with the range, but more kilometers are always an advantage.
The E-Up does not have an air-conditioned battery like the Smart, but still has a 160,000 km guarantee instead of just 100,000 km.