Journal
Hiyd and wearable news and updates
What we are learning about continuous health tracking, the sensors behind it, and how Hiyd is being built.
What Is Continuous Health Monitoring and Why Does It Beat Spot Checks?
Spot checks give you a snapshot. Continuous health monitoring gives you a pattern, and patterns are where the useful information lives.
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Wearable HRV Monitor 2026: Which Devices Give the Most Accurate Heart Rate Variability Data?
A practical comparison of the main wearable HRV monitors in 2026 (WHOOP, Oura, Garmin, Apple Watch, Fitbit, Withings, and Hiyd) covering sensor accuracy, form factor trade-offs,...
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WHOOP Subscription Cost 2026: Is Paying Monthly for a Fitness Tracker Worth It?
WHOOP runs on a membership model. Here's what it actually costs in 2026, how it compares to alternatives, and whether the subscription is worth it for...
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Wearable Health Monitor Guide 2026: What to Look for Before You Buy
A practical buyer's guide to wearable health monitors in 2026. Covering key metrics, form factor trade-offs, real cost over two years, and the five questions to...
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What Your Resting Heart Rate Is Telling You (And How to Track It Properly)
Your resting heart rate is one of the simplest numbers your body produces, and one of the most honest. Here is what it actually measures, what...
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Wearable Blood Pressure Monitors in 2026: How Accurate Are They Really?
Wrist wearables promise continuous blood pressure readings, but the accuracy limitations are real. Here's what the validation data actually shows in 2026.
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What Is HRV and Why Should You Track It Every Day in 2026?
HRV measures the variation between heartbeats and is one of the most useful health signals you can collect. Here is what it measures, what affects it...
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The Watch Enthusiast's Guide to Health Tracking in 2026
A practical guide for watch collectors and enthusiasts who want health data in 2026 without replacing the watches they actually wear.
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Why Watch Collectors Are Turning to Invisible Health Trackers in 2026
Watch collectors have always faced a choice between health tracking and wearing the watches they love. In 2026, that choice is disappearing, and here is why.
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VO2 Max Tracking: What It Is, Why It Matters, and How to Improve It in 2026
A clear breakdown of VO2 max. What it measures, why it matters for long-term health, how wearables estimate it, and what actually moves it in the...
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Wearable for Stress Management 2026: How HRV and Recovery Scores Reflect Mental Load
How HRV and recovery scores in 2026 wearables capture mental and psychological stress, and what those signals can and cannot tell you.
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How to Track Macros and Biometrics Together for a Complete Health Picture in 2026
A practical guide to tracking macros and biometrics together for a complete health picture, and why a unified view of both data streams reveals patterns that...
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