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Empowering every breastfeeding journey with insight and support

Is my milk flowing? How do I know if my baby is getting enough milk? Do I need to supplement with formula? Is my baby still hungry, or does he just want to suck? Is this the right time to drop my middle-of-the-night feeding? Am I even doing this right?

Breastfeeding is natural—but that doesn’t mean it’s easy. If you’re feeling overwhelmed, exhausted, or unsure, you are not alone.

The realities of nursing

Breastfeeding often turns out to be far more challenging than new moms expect—especially when the other half of the nursing team is a sleepy, squirmy, or downright screaming newborn. The experience can feel frustrating and confusing, which can be extra disheartening when everyone says nursing is supposed to be “instinctive.” But here’s the truth: a rocky start is totally normal, and it doesn’t mean you and your baby won’t get the hang of it.

Like most things worth doing, nursing takes time. Sore nipples, low milk supply, engorgement, cluster feeding, and self-doubt show up for just about everyone—whether things are going smoothly or not. And while there’s no perfect roadmap, there is support. You’re doing a hard and beautiful thing, and you deserve tools that help you along the way.

Meet the first breastfeeding wearable that measures milk volume

nfant® Thrive Breast is a first-of-its-kind, noninvasive wearable that gives you real-time insights into your milk flow and letdowns. It uses hospital-grade technology to help you understand what’s happening during each feeding—replacing guesswork with clarity and helping you feel more confident in your body and your baby.

For over a decade, nfant® has been a leader in infant feeding analytics, supporting families and clinicians with science-backed tools and evidence-based insights. With Thrive Breast, we’re bringing that same level of innovation and support into your home—because you deserve to feel empowered in every part of your feeding journey.

Understanding your milk flow with bioimpedance

nfant® Thrive Breast measures when milk is flowing during breastfeeding and how much milk flowed during a breastfeeding session using bioimpedance analysis. It estimates the volume of breast milk expressed by measuring the electrical resistance of the breast tissue before and after feeding. Bioimpedance is a safe, noninvasive technology commonly used in wearable fitness trackers and medical devices to assess body composition and fluid levels.
Understanding your milk flow with nfant bioimpedance

Getting Started with 
nfant® Thrive Breast

nfant® Thrive Breast is a first-of-its-kind product designed to help you better understand when your milk is flowing, when it’s not, and when letdowns occur. Thrive Breast blends seamlessly with the natural connection between you and your baby. Here’s how to get started!

Download the nfant Thrive Tracker App

The nfant Thrive Tracker App is available for free for iOS and Android from the App Store and Google Play. This app is where you will be able to see your feeding data, whether you are using nfant Thrive Bottle or Breast.

Follow the steps in the app to set up a profile for your baby. You will need to establish your account before using Thrive Breast.

Download the App

Remove items from packaging and charge the sensor

You will need to charge your sensor before first use and again periodically throughout a typical week of nursing. To charge, place it on the charging pad. The “n” on the sensor should be face down. The charging pad will light up purple when correct. The sensor will light up green while charging. When fully charged, the charging pad light will toggle between green and purple.

Prepare the Breast Link

Clean your skin where the electrodes and link sticker will be placed to remove any lotions, oils, dead skin, or makeup. 

Follow the steps in the short video to prepare the Thrive Breast Link and properly place it on your chest.

Measure Your Milk Flow

Before you begin pumping or feeding, ensure your sensor is charged and turned on (you can shake the sensor gently to wake it). Sensor blinking red means it is ready to connect. Sensor blinking green means it is connected and ready to stream.

Open the nfant Tracker App and select “start a feed.” Simply follow the steps in the app to measure your milk flow!

Learn more about Connected Feeding

We are here to help you throughout your feeding journey! Head to Feeding 101 on this site or in your app for medically-reviewed content about reading feeding cues, understanding milk supply, choosing the right feeding positions, and so much more! You can also email us with any questions you may have at [email protected]

    Nfant is HSA/FSA Eligible

    HSA/FSA Eligible

    Take full advantage of your pre-tax dollars to support your feeding journey. nfant Thrive Breast is covered and reimbursable via Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA).
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    “nfant Thrive Breast is the only device of its kind that allows moms and pediatricians to gauge active milk flow while breastfeeding. The lightweight design makes it incredibly easy to use. Finally, there is a way I can help a nursing mother understand the pattern of her milk flow and the pattern of how her baby feeds without pumping!”
    – Shea Fleming, M.D.Member of nfant’s Clinical Advisory Board

    Feeding 101

    Learn more about Connected Feeding in these posts on our Feeding 101 blog. Each of these posts has been reviewed and approved by our team of medical experts.
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