Health & Fitness

How to Train for a 5K Using Only Your Smartwatch Data

You genuinely don't need a coach, a running club, or an expensive premium watch to train for your first 5K — just a reasonable, sensible plan and a way to track whether you're actually following it...

How to Use Your Smartwatch to Build Better Sleep Habits in 30 Days

Better sleep genuinely rarely happens by accident — it's usually the direct result of a few deliberate, consistently applied changes, tracked closely enough over time to know what's actually workin...

Heart Rate Zones for Beginners: A Complete Guide Using Your COLMI Watch

If you've glanced at your COLMI watch mid-workout and seen a colour-coded zone number flash up without really knowing what it actually means or why it matters, you're honestly not alone in that exp...

What Is Cortisol and Can a Smartwatch Help You Manage It?

Cortisol gets a genuinely bad reputation as simply "the stress hormone," but the biological reality is considerably more nuanced than that popular framing suggests, and it's worth understanding pro...

How to Use HRV to Time Your Hardest Workouts

Most people glance at their HRV number once each morning and move on with their day without really using it for anything meaningful. Used properly and thoughtfully, though, heart rate variability c...

The Relationship Between Sleep and Weight: What Your Wearable Data Reveals

Diet and exercise tend to get the vast majority of attention in everyday conversations about weight, but sleep plays a genuinely significant, often surprisingly underestimated role in the very same...

How to Use Your Smartwatch to Improve Your Running Cadence

Running cadence — how many individual steps you take per minute while out on a run — is one of the more genuinely underrated metrics your COLMI watch quietly tracks during every running session, an...

What Happens to Your Body During Sleep: The Biology Behind Your Sleep Data

Your COLMI watch or ring shows you sleep stages, total duration, and a composite score each and every morning, but what's actually happening deep inside your body while you're genuinely unconscious...

New Year Fitness Goals: How to Use Your COLMI Wearable to Actually Stick to Them

January is when gym memberships reliably spike and resolutions get made with the very best of intentions — and it's also, just as reliably, when most of those same resolutions quietly fade away by ...

What Is a Sleep Score? How It's Calculated and What It Actually Means

Wake up, check your watch, and there it is: a single number summarising how well you slept. Sleep scores have become one of the most-checked stats on any wearable, but the way they're calculated is...