pixel 3a

I've got a Pixel (1) and it's fine apart from the battery. So I'm looking to upgrade (assuming the 3a has similar CPU power) to a new 3a or 4a. Potential Deal Breakers: 3a; 151mm is a bit longer (probably fine) 64GB (OK as I don't use all of my 128GB pixel anyway) Qualcomm Snapdragon 670 with...