No discussion of coil diameters. Probably most important factor. Most cooktops are similar in power and function but the coil diameter makes a big difference.
5:00 Cast iron is magnetic, so it actually is induction compatible. You just have to avoid sliding cast iron across the glass surface because that may cause scratches.
What about NuWave PIC's? They belong on this list as they have a temperature range from 100° up to 560° giving wider cooking options. Plus all of the features the above models have.
I really like induction hobs. I have four of them !!! My nearly new English Electric Induction Hob stopped working, and showed an E3 fault !!! So I checked all the electrical connections, no blown Capacitors etc. I put some new heat sink compound on the sensor in the middle of the hob copper rings !!!! Now it works Perfectly !!!! The only one I could not fix was a Tefal one that was several years old !!!! Now Induction Hobs are cheap they are fantastic for cooking !!! I always buy the cheapest ones because I think if there is too much electronics jammed into a small space then they are more likely to go wrong. Also the most expensive ones eg the Buffalo is just a plain induction cooker without hundreds of different programs !!!! Inside these Hobs are pretty much the same, so I don't want to spend loads of money on loads of programs that I don't want. Also as far as I'm aware, all induction hobs give an E3 warning with a bleeper to tell you that there is the wrong or no pan on the hob !!! They also shut off shortly after bleeping !!!! I only ended up with four hobs because I wasn't sure if I could definitely fix the faulty one !!!! I have found if I buy a new one I can always fix the faulty one !!!!!!
So, what is the size of the heating coil for each suggestion? If The pot is heated by where the pot is over the element this is a very important aspect. A 6" coil (which is pretty common) is the same size as the small element on an electric stove. An induction pot should only be 6-8" on this coil, limiting the size of the pan and heating area.
Too much time spent repeating 'fearures' common to ALL induction cooking devices by definition. Not enough information compared to differentiate the 5 units (maximum size pot, power cord length, country plug outlet & voltage requirements, etc)
Once you parse the presentation topics into "what is general to all induction cooktops" versus "what is specific to this particular model" (presentation error) you can actually glean some useful information.
