You can check this thread response Battery Optimization in Watch Faces - #2 by sinjae
Thank you for the replay, but you basically directed me to an answer that is a non-answer. I know that 450x450 is ideal, but I have seen that either designing images at 450 or converting them to 450, GREATLY reduces the clarity of the result. This is especially true in regard to text or numbers.
So, maybe this is the better question: How LARGE, can we get away with and NOT lose image quality, while maintaining a decent file size? Also, I want to keep processing use to a minimum as well. It is maybe 900px? Just doubling the destination size?
@r.liechty_SDR, any thoughts?
Thanks.