In this video, I compared the Timemore C2 and C3 Esp side by side. Please note that the C2 in this video is the original one. Timemore has upgraded it to a metal dial in 2022.
Timemore C3 has a few versions:
C3 - Plastic internal structure, lid & knob, no anti-slip base
C3s, C3esp - Full aluminum alloy, anti-slip base
The 'Pro' version has a foldable handle.
Hope this helps you understand the differences between them.
