Whoop built its reputation on subscription-based fitness tracking — no screen, no distractions, just continuous biometric data fed into an app that tells you how hard to push and when to recover.
The WHOOP MG Activity Tracker, paired with the company’s most comprehensive “Life” 12 Month Membership plans, takes that formula further than any previous version, adding medical-grade sensors capable of tracking metrics that once required a visit to a clinic. It’s the most capable wearable Whoop has ever shipped.
The MG designation stands for medical grade — and it earns the label. The device adds ECG functionality and blood pressure insights on top of the already-robust sleep, strain and recovery tracking the platform is known for. For anyone serious about long-term health monitoring, not just workout optimization, that’s a meaningful upgrade.
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Right now, Amazon has the 12-month membership bundle at $299 — down from its regular $359. Price tracking data shows this is the lowest it has been since January, making it a rare window to get into Whoop’s most advanced hardware without paying full freight.
Why it’s worth considering
The hardware itself is 7 percent smaller than the Whoop 4.0, and the battery life has improved enough to take the anxiety out of daily wear. But the real story is what those medical-grade sensors actually deliver. Wired’s review of the Whoop MG found the ECG feature accurate and the sleep staging data genuinely useful for understanding recovery patterns over time — not just overnight.
Outside and The Verge both stress the same point: this tracker rewards patience. Outside’s review noted that the MG’s health insights compound over weeks, not days, making the membership model — frustrating for some — actually appropriate for what the device is designed to do.
The Verge called it the best option for users who want clinical-adjacent data without clinical overhead. No other consumer wearable at this price combines ECG, blood pressure insights and continuous heart rate variability tracking in a screenless, always-on form factor.
