The one feature that varies: solar
Every new charger is smart, but not every smart charger can use your panels.
Solar surplus charging (diverting spare power from your own panels into the car instead of exporting it cheaply)
is a specific extra, not part of the "smart" baseline. If you have panels, or plan to, it's worth choosing a unit
that supports it. In our line-up these lean into solar:
Many other capable smart chargers focus on tariff timing rather than solar, which is perfect if a cheap overnight
rate is your plan. Match the charger to how you intend to save.