The 100-Mile Smart Watch Review: Pixel Watch 4 & Apple Watch Ultra 3

Michael Fischer (MrMobile) walks 103 miles across the Atlantic on Queen Mary 2 while comparing Apple Watch Ultra 3 and Pixel Watch 4 step-count accuracy.

• Fischer breaks Dr. John Finley’s 1925 record of 100 miles walked aboard an ocean liner — a record that stood unbeaten for a century.
• Apple Watch Ultra 3 proved more accurate for step counting; Pixel Watch 4 overcounted by nearly a full mile in a controlled 7.7-mile test segment.
• Pixel Watch 4’s new charger reaches full charge in 40 minutes; Apple Watch Ultra 3 hit only ~80% in the same window.
• Crossing 5 time zones with no cellular network required manual clock resets, which broke Pixel 10 Pro Fold’s exercise tracking entirely.
• Deck 7 on Queen Mary 2 requires 39 laps (3 laps = 1.1 mi) per day to hit 14 miles — roughly 5 hours of walking daily.
• Fischer used Google Gemini to generate his 47-day training plan and was fitted with New Balance 1080s at Fleet Feet after a gait analysis.
• Nothing Ear 3 handled ship wind noise better than Google PixelBuds Pro in real-world Atlantic conditions.

2025-11-05 · Watch on YouTube