I think that Spheros are better for library, music, math, and ELA. With Spheros the teachers could ask you questions and have signs that say possible answers so you could steer or code your Sphero to go to the answer you think is correct. I think Ozobots are good for STEM and art there are only two because Ozobots are fragile so the subjects they could help with are limited. With Ozobots you could trace out shapes for art and for STEM you could spend time coding them to trace things out.
I think that Spheros are better than Ozobots because Spheros are much more durable than Ozobots. You can do many more activities than you can with an Ozobot for example the Winter Olympics we did with Spheros. If we used Ozobots we wouldn’t have been able to do a lot of the sports that we did with the Spheros. So for anyone planning on buying a Sphero or Ozobot I would recommend buying a Sphero. Thank you for reading my Sphero vs. Ozobot and have a good day or night.