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Whoop 4.0 review: in pictures

The Whoop 4.0 is much more than a detailed sleep tracker and people who work out regularly will see more benefits than those who lead a sedentary life. It's a great way to understand your body and optimize your workout regime.
By Matthew Miller, Contributing Writer
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Whoop 4 recovery in ice bath

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Whoop 4.0 retail package and accessories

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Whoop SuperKnit band

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Battery pack charging the Whoop

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Outside of the waterproof battery pack

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SuperKnit Ice color band

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Easy attachment system

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Black Whoop band

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Everyday boxer package

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Gray Everyday boxer

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Secure pocket for Whoop sensor

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Details of a night of sleep

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Sleep consistency plot

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Week of recovery data

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Week of sleep data

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More sleep data

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Time in bed plot

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Resting heart rate history

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Average heart rate data

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Week overview

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Awesome health monitor view

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Running activity result

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