Suunto Spartan Trainer Wrist HR :: Suunto Spartan Trainer is a beautifully designed GPS watch with optimal fit, ready to train how you want whether you swim, cycle, hit the gym or run trails. Featuring convenient wrist HR measurement, the Trainer tracks your activity with calories and steps 24/7. Versatile sport and outdoor features make Spartan Trainer a natural partner as you push the city limits and your own!