Oura Ring 4 vs. Oura Ring Gen 3: Should you upgrade?

The Oura Ring 4 brings quite a few important upgrades over the Oura Ring Gen 3, but is it worth upgrading to? Should new smart ring buyers still consider the older model?

source https://www.androidcentral.com/wearables/oura-ring-4-vs-oura-ring-gen-3