It's obvious and easy to see differences and compare all products on their website, but they only looking similar from the outside.
In short, Satochip is a hardware wallet for making transactions, and Satodime is more like physical bitcoin aka the bearer cold storage.
https://satochip.io/compare/Yes, I saw this comparison. The difference is only in the use value.
The hardware differences interest me. As far as I can see, both solutions use the same EAL6-certified secure element, so it seems it's just a matter of software.