Insta360's latest miniature action camera is its most powerful model in the 'Go' series so far, but it's also bulkier than the Go3S.

Ricoh's new GR IV is a minor update of the GR III, equipped with a new 26MP sensor, a new 28mm f/2.8 lens, and various design tweaks. Is it worth upgrading for, or should you save money and opt for the GR III instead?

Nikon upgrades its pro 24-70mm f/2.8 S lens with a mark II version that's lighter, has 5x faster autofocus and is the only lens of its kind with an internal zoom.