The Apple Watch Ultra 3 is the best smartwatch for runners, while the Garmin Fenix 8 Pro is the most feature-packed sports watch on the market. If you’re trying to pick between them, Kieran and Nick have racked up plenty of miles while using both watches, including running marathons while wearing both, and give the pros and cons of each in this video. 00:00​​​​ - Intro 00:13 - Design & Key Stats 03:09 - The Run Test 15:20 - Verdict More ways to enjoy The Run Testers Check out our website: Best running shoes of 2024: https://bit.ly/3UbxNs3 Best running watches of 2024: https://bit.ly/3DavU99 Best carbon plate running shoes of 2024: https://bit.ly/3NvlD9x Subscribe: https://www.youtube.com/c/TheRunTesters?sub_confirmation=1 Follow Us: https://www.instagram.com/theruntesters/?hl=en Listen to The Run Testers Podcast: https://theruntesters.com/the-run-testers-podcast/ Watch The Run Testers Shorts: https://www.youtube.com/@TheRunTesters/shorts