I switched from an M1 to a new M4 (this is my work laptop and it had a problem) and the old M1 has a much better battery life than the new M4. Quite noticeable.

I switched from an M1 to a new M4 (this is my work laptop and it had a problem) and the old M1 has a much better battery life than the new M4. Quite noticeable. The M1 was such an awesome machine. The M4 is faster, but the M1 was plenty fast.