9 articles

Wearable Tech Reviews

In-depth reviews of health tracking wearables, CGMs, and diagnostic devices.

WHOOP 5.0 vs Oura Ring 4: Evidence, Cost, and Trade-offs

WHOOP 5.0 and Oura Ring 4 compared for recovery, sleep, battery life, cost, and published validation—with no unsupported hands-on claims.

Longevity Intel Editors5 min read

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Oura Ring Gen 3 Review: A Sleep Tracker for Longevity?

Oura Ring Gen 3 research summary: what published studies say about sleep staging, readiness scoring, temperature sensing, subscription cost, and how it compares with WHOOP.

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WHOOP 5 Review 2026: Features, Evidence & Limitations

A documentation-based WHOOP 5 and WHOOP MG review covering current plans, battery claims, ECG scope, recovery metrics, and what older validation studies can—and cannot—establish.

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Garmin vs WHOOP: Which Training Wearable Is Right for Longevity?

Garmin and WHOOP take fundamentally different approaches to health tracking. Garmin is a GPS sports computer that also tracks health. WHOOP is a recovery platform that also tracks activity. Here's the head-to-head for longevity-focused users.

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Apple Watch for Longevity: Health Features Ranked by Evidence

Apple Watch has 30+ health features. Most are marketing. These 7 are genuinely clinically meaningful — and two have FDA clearance. Here's what actually matters.

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Best Fitness Trackers for Longevity in 2026: Choose by Goal

WHOOP 5.0, Oura Ring 4, Garmin fēnix 8, and Fitbit Charge 6 compared by documented features, cost structure, and generation-specific validation.

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Garmin Fenix 7 Review: A GPS Watch With Longevity Metrics

The Garmin Fenix 7 is a GPS multisport watch with HRV Status, Body Battery, and VO2 max estimates. A research summary from Garmin's specifications and published validation studies; we have not tested it ourselves.

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Best CGMs for Non-Diabetics: Are They Worth It?

Continuous glucose monitors have gone mainstream for longevity optimization. This page is a research summary from manufacturer information and published studies; we have not tested the devices ourselves.

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Dexcom Stelo Review: A CGM Designed for Non-Diabetics

The Dexcom Stelo is an FDA-cleared over-the-counter continuous glucose monitor for adults not using insulin. A research summary from manufacturer information and published studies on glucose, sleep, diet, and exercise; we have not tested it ourselves.

6 min readRead article

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