You can watch Smiling Friends Season 3 streaming on HBO Max, which offers subscription plans starting at $9.99 per month with ads or $16.99 per month ad-free. The show also streams on the Adult Swim website and app, Amazon Prime Video Channel, and can be accessed via platforms like Sling TV and DIRECTV, both of which offer free trials for live viewing of episodes as they air. Additionally, Hulu streams the series, and bundling options with Disney+ and Hulu are available for enhanced value. The latest season premiered on October 5, 2025, on Adult Swim and HBO Max.