Their flagship models only IIRC.

But the principle of an ODM is that the company lets another company completely design, manufacture, etc... Their product and then they paste their name on at the end and sell it as their own, which is why the design is often identical, because it is a reference design with a couple tweaks.

Like 99% of the cheap smart watches do this, as well as the Nothing CMF line. The non-flagship HMD line historically did this, maybe it changed in the last couple generations have changed it?