How to Interpret Your Sleep Score Across Devices
A 75 on Oura is not a 75 on Garmin. Here's what each sleep score actually measures, which factors predict how you feel, and why consistency matters more than any single number.
How Wearables Measure Stress and Strain — and What the Numbers Mean
Garmin Body Battery, WHOOP Strain, Oura Stress, WHOOP Recovery — these scores sound like they measure the same thing. They don't. Here's what each one actually calculates, why they contradict each other, and how to read them together.
What Is HRV and How Do Wearables Measure It?
RMSSD, SDNN, LnRMSSD — your wearable picks one and doesn't tell you which. Here's what HRV actually measures, how Oura, Garmin, WHOOP, and Polar each capture it differently, and why your baseline matters more than any single number.
Can Your Health AI Prove It Isn't Lying to You?
We asked Oura, WHOOP, and Omnio the same research question. Two gave vague platitudes with zero citations. One gave verifiable evidence. Here's why the difference is architectural.
We Asked Oura, WHOOP, and Omnio the Same Sleep Question. Here's What Happened.
Every major wearable now has an AI assistant. We asked all three to compare a week of sleep data. The difference in depth reveals a fundamental architectural gap.
Oura vs WHOOP for Sleep, Recovery, and Training
Trying to choose between Oura and WHOOP? Here's the practical difference in sleep tracking, HRV, recovery, workouts, battery life, and who each device is actually best for.