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Stay calm and focused by learning to control your body's natural stress response.
Stay calm and focused by learning to control your body's natural stress response.
1,895 backers pledged $405,922 to help bring this project to life.

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  1. Select this reward

    Pledge $5 or more About $5

    Thank you!

    Lend us your support in bringing this product to life! We'll keep you updated with news, learnings, and beta opportunities as you help make this product a reality.

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    Pledge $25 or more About $25

    Self-Regulation Toolkit

    Receive a digital 8 week mini-course from leaders in the fields of psychology, biofeedback, mindfulness and behavior design. Listen in as these experts explain the science and techniques Lief uses in a simple and practical way. You might not have a Lief patch, but we'll guide you in training with your heartbeat (which is always accessible), and include audio practices to build your self-regulation skills over 8 weeks and beyond.

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    Reward no longer available 47 backers
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    Pledge $159 or more About $159

    SUPER Early Bird - Lief Smart

    Be the first to own the Lief! As a passionate supporter, we want to give you the biggest discount possible.

    (Save 47%!!! - retail price $299)

    Includes:
    • Lief Smart Patch
    • 1 microUSB charger
    • 8 weeks of Lief stickers
    • Lief App and Self-Regulation Toolkit
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    Ships to Anywhere in the world
    Reward no longer available 125 backers
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    Pledge $179 or more About $179

    Early Bird - Lief Smart

    Be one of the first to own the Lief!

    (Save 40%!!! - retail price $299)

    Includes:
    • Lief Smart Patch
    • 1 microUSB charger
    • 8 weeks of Lief stickers
    • Lief App and Self-Regulation Toolkit
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    Ships to Anywhere in the world
    Reward no longer available 500 backers
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    Pledge $189 or more About $189

    Lief Smart - Holiday Special!

    Exclusive sale for the holiday - Give the gift of the Lief to yourself or someone important in your life.

    (Save 37%!!! - retail price $299)

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    Ships to Anywhere in the world
    Reward no longer available 235 backers
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  6. Select this reward

    Pledge $199 or more About $199

    Lief Smart

    Be one of the first to own the Lief!

    (Save 33% - retail price $299)

    Includes:
    • Lief Smart Patch
    • 1 microUSB charger
    • 8 weeks of Lief stickers
    • Lief App and Self-Regulation Toolkit
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    Ships to Anywhere in the world
    Limited 408 backers
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    Pledge $249 or more About $249

    Early Bird - Lief Pro

    Be the first to get the most accurate and actionable continuous HRV monitor on the market. This model includes 1 month of on-board data storage and unlimited data export.

    (Save 37% - retail price $399)

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    Ships to Anywhere in the world
    Reward no longer available 140 backers
    $
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  8. Select this reward

    Pledge $269 or more About $269

    Lief Pro

    Be the first to get one of the most accurate and accessible continuous HRV monitors on the market. This model includes 1 month of on-board data storage and unlimited data export.

    (Save 33% - retail price $399)

    Includes:
    • Lief Pro Patch
    • 1 microUSB charger
    • 8 weeks of Lief stickers
    • Lief App and Self-Regulation Toolkit
    • R-R intervals export option
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    Ships to Anywhere in the world
    Limited 227 backers
    $
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  9. Select this reward

    Pledge $358 or more About $358

    Lief Buddy Pack

    Get the Lief, and share it with a partner or friend. Practice together, and hold each other accountable to make lasting change.

    (Save 40% - retail price $598)

    Includes:
    • Lief Smart Patch
    • 1 microUSB charger
    • 8 weeks of Lief stickers
    • Lief App and Self-Regulation Toolkit
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    Ships to Anywhere in the world
    Limited 100 backers
    $
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    Pledge $1,395 or more About $1,395

    5 Lief Pros

    Get 5 Lief Pro's and a web dashboard to easily view the data of all your connected users, and export the R-R intervals to analyze.

    (Save 30% - retail price $1,995)

    Includes:
    • Lief Pro Patch
    • 1 microUSB charger
    • 8 weeks of Lief stickers
    • Lief App and Self-Regulation Toolkit
    • R-R intervals export option
    • Web Dashboard
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    5 backers
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    Pledge $2,690 or more About $2,690

    10 Lief Pros

    Get 10 Lief Pro's, and have a personalized video workshop led by the Lief founders just for you! This includes a web dashboard to easily view the data of all your connected users, and export the R-R intervals to analyze.

    (Save 33% - retail price $3,990)

    Includes:
    • 10× Lief Patch
    • 10× 1 microUSB charger
    • 10× 8 weeks of Lief stickers
    • 10× Lief App and Self-Regulation Toolkit
    • 10× R-R intervals export option
    • 10× Web Dashboard
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    Limited 4 backers
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