Whoop 4.0: Quick New Features Overview

Today, Whoop announced their new 4.0 sensor/device. Whoop is part-device, part-platform. The device is a small pod that doesn’t display any metrics itself, but rather has sensors to collect those metrics and transmit them to your phone and the larger Whoop cloud platform. Historically that’s been heart-rate driven data, but the new 4.0 pod includes blood oxygen levels and skin temperature. Once in the Whoop platform the company provides boatloads of data around what they dub ‘strain’ and ‘recovery. In other words, how much/hard have you been working out, and how well are you recovering.

Here’s the new Whoop 4.0-specific features (all of which are hardware-driven):

– New sensor: This now has 5 LED’s (3xGreen, 1xRed, 1xInfared) compared to the previous 2xGreen. Still has 4 photodiodes
– Added Skin Temperature: We’ve seen this on a few wearables over the years, and is often used with sleep data
– Added Bloody Oxygen monitoring: Measures SpO2w, which is often used in both sleep-related data and high altitude data
– Added Sleep Coach with on-device alerts: This will wake you up based on optimal sleep cycles
– Added haptic motor (vibrations): This means the band can now alert you to things, starting with waking you up via Sleep Coach
– Added “Health Monitor”: This is more of an app dashboard thing, which shows live HR/skin temperature/blood oxygen/resting HR/HRV/respiratory Rate
– Added PDF Export of Health Monitor: This allows you to export out your Health Monitor dashboard metrics in a PDF for doctors/sports staff/etc in 30-180 day chunks.
– New Battery Design: Whoop says that they’re the “first product in the world” to use Sila’s new Silicone anode battery, which has 17% higher energy density and longer cycle life.
– 5-day battery life: The unit maintains the previous 5-day battery life claim, despite the unit being much smaller
– New Whoop Battery Pack: This new pack is waterproof (woot!) and allows a double-tap for battery level
– Smaller size: Whoop says it’s now 33% smaller than prior

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