10 Best Triathlon Watches 2025 in the United States

The COROS PACE 3 Sport Watch GPS is an impressive choice for triathletes looking for a lightweight and feature-rich companion for their training and races. One of its standout strengths is the extended battery life, with up to 17 days of daily use and 38 hours of continuous GPS tracking. This is particularly beneficial for triathletes who require long-lasting performance during extended workouts or events.

The watch excels in GPS accuracy, thanks to its dual-frequency capabilities, which ensure reliable tracking even in challenging environments like urban areas with tall buildings. This feature is crucial for anyone who needs precise navigation during their training sessions or races. Additionally, the wide range of activity modes—covering running, biking, swimming, and even skiing—makes it a versatile choice for multi-sport athletes.

Comfort is another highlight as the watch is designed to be lightweight and durable, weighing only 30g, which makes it easy to wear throughout the day without feeling weighed down. The always-on transflective touchscreen display allows for easy readability in various lighting conditions, enhancing usability during outdoor activities. The COROS PACE 3 Sport Watch GPS is a strong contender for triathletes, especially those who value battery life, GPS accuracy, and comfort, though it may not meet the needs of those requiring advanced navigation features.

The COROS PACE Pro is a solid choice for triathletes looking for a GPS sport watch that combines strong performance with a vibrant display. Its 1.3-inch AMOLED touchscreen is bright and clear, making it easy to read your stats in all lighting conditions. The watch shines with an impressive battery life—up to 20 days in normal use and about 31-38 hours of continuous GPS tracking, which is great for long training sessions or races. GPS accuracy is top-notch thanks to a new satellite chipset, ensuring reliable tracking whether you’re running in the city or cycling on trails.

For multisport needs, it supports navigation with offline maps and turn-by-turn directions, helping you stay on route without needing your phone. Connectivity is handled well with Bluetooth and fast WiFi transfers, plus USB-C charging makes powering up convenient. The heart rate monitoring and fitness management features are backed by a dedicated app with insights and training tools, which helps you track recovery and customize workouts.

The COROS PACE Pro delivers excellent value for triathletes wanting a reliable, feature-rich GPS watch with long battery life and sharp display quality.

The SUUNTO 9 Peak Pro GPS Sports Watch stands out with its impressive battery life, offering up to 30 days in regular use, 40 hours in best GPS mode, 70 hours in endurance mode, and 300 hours in tour mode. This makes it highly suitable for long training sessions and extended triathlon events. Its water resistance up to 100 meters ensures it can withstand swimming and harsh weather conditions, which is crucial for triathletes.

The GPS accuracy is enhanced by using four different satellite systems, providing reliable tracking in challenging environments like tall buildings and mountainous terrains. The wrist-based heart rate monitoring offers convenience, though some athletes might prefer the accuracy of chest straps. With 97 sport modes and advanced health and recovery support, the watch caters to various training needs and sports activities.

Durability is a strong point, featuring military-grade materials such as titanium, stainless steel, and sapphire glass, ensuring it can handle rigorous use. The connectivity options, including Bluetooth and compatibility with numerous fitness apps, enhance its usability. However, the watch's 43-centimeter screen size might be too large for some users, and its weight of 2.25 ounces could be slightly heavier than other models. Additionally, while the touchscreen feature is modern, it might be less responsive underwater. It's a solid choice for dedicated triathletes looking for a robust and feature-rich sports watch.