Apple Watch Ultra 4 enhances training with new features, according to Canadian Running. The watch offers precise pace tracking and readiness assessments. It also boasts dual-band GPS for accurate tracking.

The Ultra 4's battery life is impressive, lasting up to 45 hours in GPS mode. It also features a satellite setting for wilderness use. The watch's durability is highlighted with a sapphire screen and titanium case. Read more gear coverage.

Safety features include automatic emergency notifications and Check In alerts. The watch's lightweight design and quick charging make it ideal for runners. It's a significant upgrade for Apple's sports watches. Related: Fourth Frontier X3: Advanced Insights for Runners.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.