A general image-design rule: a claim is more convincing when it's visually demonstrated than when it's stated as text. A shake test proving a container is waterproof persuades more than a bullet point that says 'waterproof.'
Applies to any claim that would otherwise sit in a bullet point or a text callout — the question to ask is whether the claim can instead be shown happening. Often combines naturally with an 'Us vs. Them' Comparison Image format, demonstrating the claim against a competitor that fails it.
Apply: For every claim you'd otherwise put in a bullet or text callout, look for a way to visually prove it in action, optionally contrasted against a competitor that doesn't meet the claim.