INSANE: Dc rainmaker analyzer - The Real Truth

I don’t trust the heart rate sensors on watches, so wear a chest strap on every run — here are the 4 best straps I’ve tested

The optical heart rate sensors on watches have improved greatly in recent years, but chest straps still offer an extra level of reliability that I value with my own training.

Tom’s Guide · Aug 2

I tested the Garmin Cirqa against a chest strap to see if its heart rate sensor is accurate — here’s the results

I’ve done a variety of runs and strength workouts with the Garmin Cirqa to test its heart rate accuracy against a chest strap monitor, widely considered the gold standard for accuracy.

Tom’s Guide · Jul 29

I raced a half marathon with the Garmin Forerunner 970 vs Coros Pace 4 — here’s the winner

I’ve been training with the Garmin Forerunner 970 and Coros Pace 4 for months and both delivered impressively accurate results at the Paris Half Marathon.

Tom’s Guide · Mar 10

I wore the Garmin Forerunner 165 vs. Suunto Run for a week — here's the winner

I wore the Suunto Run and Garmin Forerunner 165 at the same time to see which is the better budget-friendly sports watch for runners.

Tom’s Guide · May 14, 2025

I ran a marathon with the Garmin Fenix 8 vs. Garmin Forerunner 965 — here’s the winner

I ran the Seville Marathon wearing both the Garmin Fenix 8 and Garmin Forerunner 965. Both watches proved almost impeccably accurate during the race.

Tom’s Guide · Feb 28, 2025

I raced a 10K with the Coros Pace Pro vs Garmin Forerunner 265 — here’s the winner

I ran the Hoka Paris Centre 10K wearing the Garmin Forerunner 265 and Coros Pace Pro to test their GPS and HR accuracy — here’s what happened.

Tom’s Guide · Nov 20, 2024

I raced a half marathon with the Apple Watch Ultra 2 vs. Garmin Forerunner 965 — here’s the winner

I raced a half marathon wearing both the Apple Watch Ultra 2 and Garmin Forerunner 965, and one watch came out on top with regards to GPS and heart rate accuracy.

Tom’s Guide · Oct 25, 2024

I raced a 10K with the Apple Watch 10 vs. Apple Watch Ultra 2 — here's the winner

I wore the Apple Watch Ultra 2 and the Apple Watch 10 at the River Ness 10K in Scotland to test their accuracy — here’s the winner.

Tom’s Guide · Oct 4, 2024