Fitness, Tech, Wellness / Self-Care

You need this Sweat patch that monitors your daily Hydration

From the creators of Gatorade.

words by: Natasha Marsh
Jul 26, 2022

As an active marathon runner, the majority of my weeks are filled with training for my next race. From the adrenaline, runner’s high, performance wins, and the change in my body and spirit, I absolutely love running. Because I do it so often, one of the most important things I need to do is fuel myself properly with the right amount of water and electrolytes.


I will admit — and this is common amongst athletes — being able to tell how much water and electrolytes you need can sometimes get tricky. Which is why the new Gatorade Gx Sweat Patch is such a great tool.




The patch comes with a matching app that helps you pinpoint how much water you need to replenish the fluids lost in a workout. The app will also share what sodium you lost as you sweat, so you can add in more electrolytes.


The patch, similar to a wellness patch, feels like a sticker and can be placed on the inside of your forearm and will start to turn orange as you sweat. The side of the patch will analyze your sweat for sodium concentration, detailing how much sodium has left your body. When you finish your workout, you can use the app to see your sweat rate (how much sweat or fluid you lose per hour of exercise) and sodium loss (how much sodium within that fluid you lost during your workout).


It’s ideal for long distance runners like me to develop a day-of hydration plan for runs that are longer than an hour, allowing you to perform at your optimal level. This cool patch is the first of it’s kind to show access in real-time, where previously athletes would wear the patch and have researchers from the Gatorade Sports Science Institute to analyze and study it, and give recommendations. Athletes and customers alike can wear the patch and look at their data in the corresponding app.


Hydration and fluid loss greatly affects performance. In some cases, someone can lose 3 ounces per hour, whereas another could lose 89 ounces per hour. It really is crucial in knowing what your hydration is. Basically if you lose 800 mL of sweat per hour, you need to drink 125 mL of water every 15 minutes as you train. And once you know how many electrolytes you need, you will be able to move your body at optimal capacity.


P.S.: Especially in this weather, take a cold plunge after your workout. And here’s the sweaty guy’s skincare guide that will save you all year round.


Photos via Gatorade