Electricity Consumption Meter

A meter for electricity. The illustrated meter has been a traditional meter with a turntable disc. As the turntable rotates it consumes energy and this is registered.
Now I have bought solar panels and the conveyor of the electricity advices a new "smart" meter so you the consumed and generated energy is visible and can be settled.
The traditional meters with disc you can not see the consumption and power generated. If you generate energy and will return the disk turns back and count down the meters work.
What is wisdom. The traditional meters with disk or a smart meter with many read options via app's.