Is the Pixel 10a worth waiting for?

Probably only if you are not in a hurry and your current phone is still fine. For most buyers, I would not wait for the Pixel 10a unless you specifically want the newest budget Pixel and are willing to wait for official specs, price, and reviews.

Best practical call:

• Buy now if you need a phone soon, find a strong discount on the Pixel 9a or Pixel 9, or care more about value than having the newest model.
• Wait if your current phone can last a few more months, you want the longest possible software-support window, or you want to see whether Google brings newer Tensor hardware, camera improvements, or battery gains to the A-series.
• Do not preorder blindly; wait for reviews that test battery life, heat, camera consistency, modem performance, and real-world speed.

The Pixel A-series is usually best when discounted, so the Pixel 10a may be most worth it after launch deals or once Pixel 9a prices drop further.