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
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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.
