Pixel 6 & 6 Pro - New sim needed?

N.1.1 wrote:

I’m a current T-Mobile customer buying an unlocked Pixel 6 Pro at Best Buy.

Will I need a new sim or just activate with my current sim?

This is for those who are here for the same issue as I posted above.

I went to a T-Mobile store and I will need a new sim (for 5G). The good news is the new sim is compatible with my current phone and they went ahead and replaced it now. When the new Pixel 6 comes in I'll just transfer the sim.