You will see this used often during presentations involving the Apple Watch, child-friendly features, or "soft" software updates. The rounded terminals give it a friendlier, more approachable look.
Apple doesn't use just one version of San Francisco in its keynotes. They use a carefully layered hierarchy: what font does apple use in their keynote presentations
for specific branding consistency, though it is visually nearly identical to SF Pro. Serif Alternative: You will see this used often during presentations
: In the company's early days, marketing materials and product labels featured Motter Tektura (late 70s) and Apple Garamond (the "Think Different" era). How to Use Apple's Fonts If you are an Apple user, and its serif companion, , are available for download on the Apple Developer Fonts page Important Note and its serif companion