Wearables
3 articles
GearOctober 16, 2026 · 10 MIN
Heart Rate Monitor Accuracy: Chest Strap vs Optical Wrist Sensor
Heart rate monitor accuracy matters more than most athletes realise — a 10 bpm error on a threshold interval can place you in the wrong training zone entirely, undermining months of structured work. ECG-based chest straps and PPG optical wrist sensors operate on fundamentally different principles, with very different accuracy profiles across conditions. Here is what the research says about which technology to trust, and when.
GearOctober 15, 2026 · 10 MIN
Running Power Meters: Complete Guide to Watt-Based Training
Running power meters translate your effort into watts — a real-time metric unaffected by heat, fatigue, or hills — giving you a training signal more consistent than heart rate and more topography-aware than pace. With devices now available as wrist-based algorithms, chest pods, and foot pods, the technology is accessible to any serious runner. This guide explains how each system works, what the numbers mean, and how to build a full watt-based training framework.
RecoverySeptember 4, 2026 · 11 MIN
Sleep Tracking Wearables for Athletes: What to Measure, What to Ignore
Sleep wearables measure sleep stages, HRV, and respiratory rate — but accuracy varies from 60% to 90% depending on the metric. Learn which data points actually inform training decisions and which create noise.