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Many fitness trackers keep on tail even after you ’ve hit the release , providing you with entropy about how long you slept , how many time you woke up and your overall eternal rest timber . But some tracker first need to be aim into sleep mode before they can collect this info . Here ’s how to get across your sleep with some of thebest fitness trackers :

Jawbone UP24

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The Withings Pulse O2 in sleep mode.

Fitbit Flex

Fitbit One

Misfit Shine

A woman checking her heart rate on a fitness watch

Basis B1

The Basis does not have a sleep modal value . It automatically detect when you ’re sleeping and when you stir up up .

Nike+ Fuelband SE

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The originalNike+ Fuelbanddoes not track sleep , but the newer Fuelband SE can cut across your sleep sentence . Here ’s how it work :

Withings Pulse O2

Our expert reviewer testing the workout features on the Garmin Fenix 8 smartwatch

A selection of Garmin and Fitbit watches on a pink background

Our reviewer wearing a Fitbit watch

Xiaomi Smart Band 9 being worn by our reviewer

woman asleep holding a cup of coffee

How to fall asleep: Image shows woman looking sleepy

Image of woman sleeping with facemask and earbuds

How to sleep for longer: Image shows couple asleep

sleeping woman

Woman running in the early morning.

An image comparing the relative sizes of our solar system�s known dwarf planets, including the newly discovered 2017 OF201

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a person holds a GLP-1 injector

A man with light skin and dark hair and beard leans back in a wooden boat, rowing with oars into the sea

an MRI scan of a brain

A photograph of two of Colossal�s genetically engineered wolves as pups.

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