Get solar charging that provides extra-long GPS battery life to help you outlast your next ultra race, plus power-saving positional accuracy and built-in mapping to help you find your way.

Solar power provides best-in-class battery life for the longest races.

Keep going for up to 150 hours of battery life in GPS mode with solar charging1.

SatIQ technology maximizes battery life without compromising the positional accuracy you need.

Know where to go with TopoActive maps and NextFork map guide.

A superbright LED flashlight helps you keep an eye on your surroundings.

Grade-adjusted performance metrics help you take your training to the next level.

Get up to 34 days of battery life in smartwatch mode with an additional 12 days when solar charging2 for an uninterrupted picture of your health and fitness, and up to 150 hours in GPS mode with solar charging1 to track your performance in training and races.

BUILT FOR EXTREMES
The rugged, sophisticated and lightweight design features a large 1.4 solar charged display and 51 mm case with sapphire lens. The UltraFit band provides long distance comfort even in punishing conditions.

TOUCHSCREEN AND BUTTONS
Traditional button controls that work in any environment are matched with a responsive new touchscreen interface for quick access to selections and functions.

TRAIL RUN VO2 MAX
Trail run VO2 max estimates the cardiovascular fitness level of trail runners by adjusting based on the varying trail and terrain conditions that can affect run performance.

ULTRARUN ACTIVITY
Use the ultrarun activity with rest timer, and log the time you spend at aid stations.

ADVENTURE RACING APP
This activity profile allows you to see heart rate, elevation, segment times and other metrics when the race is on. It records GPS in this mode but is unavailable for viewing, in keeping with adventure race rules. A summary screen even helps verify your finish time with the race committee.

CLIMBPRO FEATURE
Use the ClimbPro ascent planner on downloaded courses to see real-time information on your current and upcoming climbs, including gradient, distance and elevation gain as well as descents and flats.

PACEPRO TECHNOLOGY
A first-of-its-kind PacePro feature helps keep you on pace with grade-adjusted guidance as you run a course.

GRADE-ADJUSTED PACE
Dont run out of steam before the activity is over. Understand how to adjust your pace over varying terrain to perform according to your plan.

VISUAL RACE PREDICTOR
Based on your running history and overall fitness level, this feature provides an estimate of what your pace could be for the distance you want to run. Trend data shows how your training is having an impact over time.

HEAT AND ALTITUDE ACCLIMATION
Prepare yourself for any environment. When paired with your compatible smartphone, see how your body is holding up in different environments with heat and altitude acclimation.

PERFORMANCE METRICS
View advanced training metrics that include running dynamics, heat- and altitude-adjusted VO2 max, trail running adjustment, recovery advisor and more.

AUTOMATIC REST TIMER
During an ultrarun activity your watch automatically keeps track of time spent at an aid station or checkpoint so you dont need to worry about pausing your run.