Gerald has a youtube closeup of the Suunto Spartan ULTRA (below). You’ll have to wait until September, maybe, for my coverage of the extra functions that should be released then.
I shall resume my look at the Spartan in September. Off on holiday now. Holiday=training-somewhere-else 🙂 In the meantime here is a nice-ish shot of the F3 and ULTRA…similar looking. ULTRA has less buttons and feels like a better hardware package. F4 in a week or two maybe?

Last Updated on 16 January 2026 by the5krunner

tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors.
