It all looks relatively reasonable to me. They don't seem to make extreme claims anywhere in that page. There's a section that talks about some meta research re

It all looks relatively reasonable to me. They don't seem to make extreme claims anywhere in that page. There's a section that talks about some meta research regarding impact of non-ionizing radiation -- I'm not sure how accurate that is. But, again, they're not saying that you will suffer if you don't get their phone. Just that the radiation could be harmful, so they designed a phone w minimal SAR.