There are a number of configurable hobs on the market that allow a variation of supply powers. The one I downloaded instructions for had 13, 16, 20 amp options.
Clearly if you want to use all areas together it will need the higher supply. I would not get any induction hob with touch controls the whole idea of induction is fast reaction time and you just can't use touch controls fast so in spite of having a induction hob you still end up lifting the pan off the hob as the controls are too slow to use.
Give me knobs every time.
The heat settings seem very low. Mine has a 2.4kW, 3.6kW and 2 x 3kW I will admit other than to boil water I never use more than about 1.8kW but why buy a hob with such a low output?
There is always some interlock with the induction hobs so adding up the max outputs is rather pointless.
Bosch say:- Equipped with a 13A plug, and clever electronics to automatically share the available power between tha active zones, this Winning Line induction hob does not need to be hard wired, allowing quick and simple installation. The frameless design the hob provides a classic finish and features such as residual heat indicators, a timer for all zones and electronic touch control ensure this this ideal introduction to induction, either for new or replacement installations.
Rating is 2,990 W the
installation guide is on line, but rather general.
If I was living in a bed sit then I would consider one but in normal house no I would buy a proper full size one. I tried mine compared to an electric kettle same amount of water in pan and kettle on 3kW ring time to boil is the same.