Interestingly, this caused the Pixel 4 to get banned in India: https://www.androidpolice.com/2019/10/15/india-wont-get-the-...
>The radar uses a 60GHz frequency band to attain the advertised accuracy, and that’s exactly where the problem lies. India has reserved this mmWave band only for military and government use for now and it needs to un-license this frequency before allowing civilian use for applications like Soli.
>The report adds that Google did consider disabling the radar for the units sold in India, but it still wouldn’t have guaranteed a sales permit, and removing the hardware wasn’t an option.