FeaturesYour running

Replay every meter of every run.

Trailbuddy replays the run on the map, sorts your heart rate into five zones and charts your season week by week.

The run ends at the trailhead, and the replay starts there. Trailbuddy lays the whole run out on one screen and moves you along the map as you drag a finger through the chart.

3

Chart overlays: elevation, heart rate, cadence

5

Heart-rate zones from your maximum heart rate

Weekly

Distance and elevation across the season

Scrub through every meter on the map

Trailbuddy colors your route by the metric you pick and overlays elevation, heart rate and cadence on the playback chart below the map. Drag through the chart and Trailbuddy moves along the map, reading out time, distance, heart rate, cadence and elevation at each point.

Trailbuddy marks your best lap in the lap table. Open any lap for its pace, grade-adjusted pace and heart rate, and for your splits at any checkpoints you placed.

See your time in every zone

Trailbuddy sorts every heart-rate reading into five zones set from your maximum heart rate: Recovery below 60%, Endurance 60 to 70%, Tempo 70 to 80%, Threshold 80 to 90% and VO2 Max from 90%. You see the minutes and the share in each zone for the run and a zone bar on every lap.

A running tracker

Average heart rate 152

Your watch gives a hill session one number, with the warm-up and the jog down averaged in.

Trailbuddy

Threshold, 18 min (33%)

Trailbuddy shows your time in each zone, for the run and for every lap.

Watch the season build

Trailbuddy charts weekly distance and elevation on the Progress tab, from the last month to your whole history. Your profile keeps career totals and milestones, and Trailbuddy saves every run to Apple Health as a running workout with the route, heart rate and elevation gain and loss.