Flexible battery life
The battery life of your Suunto Spartan watch is designed to flex according to your needs. Even with all settings at max, a Spartan Ultra for example offers up to 18 hours of high performance adventure. If you are headed out on a multi-day race, there are lots of ways to make your watch go the distance.
The first thing to look at is GPS accuracy, where you have three options: Best, Good and OK. Best gives you the most accurate track, but consumes the most power. Dial it down to Good for more battery life with a decent compromise on track accuracy. If you really need to push the battery, go with OK. The fix rate drops from 1 second to 1 minute, but you get in return 60+ hours of battery life.
On top of that, you can extend your battery life by lowering backlight brightness or turning off vibration alerts, for example. Further tweak your watch with sport mode power saving options such as display color to reach as much as 140 hours of battery life with GPS!
You can adjust these settings on the watch or in.