It also has continuous, all-day activity, sleep, and stress tracking with heart monitoring thanks to an upgraded array of six LEDs and four photodetectors. An optional Suunto heart rate chest strap can also be paired and used for greater accuracy when measuring heart rate. Watch features and settings are controlled using the touchscreen, crown, and two side buttons.
The dual-band GPS smartwatch weighs just 37 g (1.30 oz.) and is 11 mm (0.43 in.) thick. The case is rated to 5 ATM for water resistance and is secured to the wrist with a 22 mm (0.87 in.) silicone strap, which comes in single and dual-color options.
The Suunto Race 3S smartwatch has an MSRP of $499 and is available from the company website and the Suunto store on Amazon in Titanium Orchid, Titanium Feather, and Titanium Black, starting October 15, 2026, in China and EMEA, and October 29, 2026, in North America and APAC.