Only used 35 times, was a gift but I'm not trail running anymore. Was great with getting GPS quickly and tracking elevation, speed, pace, distance. Worked great with bluetooth for easy uploading. MULTISPORT 15h battery with 5 sec-GPS accuracy (1 min-accuracy: 100h) Speed, pace, distance Altitude (FusedAlti™) Route navigation and track back Compass Heart rate while swimming** Bike power support (Bluetooth Smart) Multiple sports in one log Interval workout planner* Activity based recovery time Quick recovery and sleep recovery tests (Firstbeat)** Movescount training programs on the watch Extended feature set through Suunto Apps Languages: EN, CS, DA, DE, ES, FI, FR, IT, JA, KO, NL, NO, PL, PT, RU, SV, ZH PLANNING AND TRACKING ELEVATION GAIN Route planner with topographic map*** Discover new routes with heatmaps on Suunto Movescount and Suunto Movescount App Altitude profile and total ascent visualization*** Route altitude profile on watch Vibration alerts on watch Real-time hill incline percentage**** Vertical gain totals per day, week, month and year Compatible with Stryd Running Powermeter Compatible with Bluetooth Smart power sensors RELIVE AND SHARE Mobile notifications* Add photos to your Moves in Movescount or in Movescount App Create a Suunto Movie with 3D map, key metrics and photos* Relive and share your experience in social media *with Suunto Movescount App **with Suunto Smart Sensor ***in Suunto's Movescount.com ****in Suunto Apps