Articles

Merging Garmin FIT files with Polar heart-rate data

Your watch's wrist HR is convenient but noisy. A chest or arm strap is accurate but usually can't pair live with every watch. Here's how to get both.

Splitting, cropping, and joining activity files

A dropped connection, a forgotten pause, or two separate recordings of one long day out — here's how to turn them back into one clean file.

Merge a watch recording with an indoor trainer ride

Zwift, MyWhoosh, Rouvy or TrainingPeaks Virtual plus a watch gives you two files for one ride, neither complete. Here's what each is good for.

Fix wrong triathlon transitions on a Garmin watch

Your watch put the transition in the wrong place, or recorded the bike leg badly while your bike computer got it right. Here's how to fix both.

Merge two Garmin activities into one file

Two recordings, one after the other? Join them into a single activity file, and see which tool to use if your two files overlap.