SwimBETTER 14 Day Money Back Guarantee. Six months free membership with any handset purchase. Shipping now.

The fastest way to improve your swim is to improve your technique.

Accurately quantify your technique right on the pool deck. With eo SwimBETTER you can measure the applied force of your hands in up to six directions with a device small enough to fit in your palm. It’s a game-changing moment for the sport.

eo’s scientists developed SwimBETTER for:

Swim Coaches

to enhance your eye and inform your gut with never-before-seen data insight.


to reduce the time between stroke analysis and intervention so you swim faster… faster.


to become more efficient and effective in the swim leg, conserving your energy for the bike and run.



Available with either a 90 or 15-minute recording capacity, there’s an eo SwimBETTER to suit individual swimmers, squads, teams, long distance swimmers and triathletes.

We love the smell of chlorine in the morning.

eo SwimBETTER starts from US$799
plus eo membership.

14 day money back guarantee | Free express shipping | Free periods apply on some memberships

Analyse, adapt and accelerate your progress with eo SwimBETTER. We’re so sure it will knock your goggles off that we offer a 14 day money back guarantee on every order.

An eo SwimBETTER membership is required for every swimmer to download and store their data. Gold and silver memberships, and team memberships for six or more swimmers, are available and can be paid on an annual or monthly basis. Your membership is automatically activated upon delivery of your order.

Every pair of handsets comes with some free time on your membership.

When you purchase a pair of eo SwimBETTER handsets, we’ll cover some of your membership fees to give you a chance to get the hang of them and understand all the mind-blowing data:

  • Six months free on a single membership if less than six memberships are purchased with any pair of handsets – your membership can be purchased at the same time as the handsets or later. If the membership is purchased later, the free period will be added to the first membership purchased on the same account as the handsets.
  • One month free on every team membership (six or more memberships) when purchased with any pair of handsets.
Never lose track of your data. Ever.

Your eo membership allows you to download and view your accumulated swim data and keep it all safe and secure in one place. No matter if you leave your team or club, you’ll never lose access. Whenever you want to dive into your data, simply log in to your eo Account.

Find out more

Product overview

Track your performance in the pool at a glance with a trendline showing your progress over time across a range of different metrics including: Force per stroke, Stroke rate, Distance per stroke, Strokes per lap, Time, Average velocity, and Propulsion.

Improve your efficiency at different speeds.

Measure your total force output alongside your stroke rate and, for the first time ever, see the variations in your force as your stroke rate changes. Push for progress by reducing your force while maintaining the same swim speed and show evolution who's boss. 

Swim faster by understanding your force distribution.

See how your force is distributed - helping you adjust your technique and optimise your propulsion by cutting unnecessary force and wasted energy. That's the science of defiance. 

Hand at the right depth? Pushing across your body? Sweeping too wide?

Pin down where you can progress by tracking the path of your hand through every phase of your stroke - from the front, side, and top down. Identify areas of your stroke that may be compomising your speed and efficiency. With a Gold membership, you can even see your hand speed at any point. 

Identify your propulsive time.

Break down the glide, pull and recovery phases of every stroke to see the percentage of your overall stroke spent in each phase. Optimise your glide and pull phases to level up your swim. 

Be better more often.

Consistency is key. Get an instant comparison of yours by selecting any number of your left and right strokes to see an overlay of their paths. Allowing you to identify any degredation under fatigue, changes at varying speeds, and anomalies. Consistency of good technique will get you swimming faster... faster.

Find your missing link.

Dive deeper into your force measurement - pinpointing your strokes strengths and where you're losing force. Seeking that extra level of detail? Get a moment by moment understanding of changing forces within each stroke so you can wave your limits goodbye.

Here's what you get: two eo SwimBETTER handsets, a pair of straps in your selected size, two eo charging clips, two USB-C charging cables, a pair of eo sunscreens to clip over your handsets when you're swimming outdoors, a tiny towel to dry off your handsets, and a storage case.

Fit is based on the width of your palm. You’ll be asked for this measurement at checkout so we can include the correct sized Velcro straps with your handsets.

Each eo SwimBETTER handset weighs in at just 30g / 1.06 oz. That’s about the same as a slice of bread.

Our handsets operate in fresh, chlorinated and salt water and up to 30 metres / 100 feet deep. eo SwimBETTER performs wherever you do. 

eo SwimBETTER90 records up to 90 minutes between downloads, while eo SwimBETTER15 records, you guessed it, up to 15.

Getting connected is simple. Your eo SwimBETTER communicates directly with the eo app using Bluetooth®.

Access your downloaded data anytime through your eo account, where it's stored securely in the Cloud. Once downloaded, your data is wiped from the handset so you can dive back in and record again. 

You can expect around three hours of recording between complete charges. Your handsets maximise the battery by automatically turning off after 10 minutes of inactivity. Clever. 

Just attach the charging clip to the charging port on the side of your handset, plug in the USB-C charging cable and power up. You're fully charged when the LEDs stop flashing.

Use eo SwimBETTER to understand the impact breathing earlier in your stroke can have on your swim speed.

Increasing your rating while maintaining power and stroke length will make you a faster swimmer. Use eo SwimBETTER to examine your stroke phases and find gaps between strokes.

eo SwimBETTER can show if overreach is an issue with your stroke and slowing you down.

Find out how eo SwimBETTER can help ensure your arms are following the right path to optimise your propulsive force.

Use eo SwimBETTER to master your reach and catch and watch your freestyle become smoother, stronger, and faster.

Use eo SwimBETTER to improve your force distribution and increase forward propulsion.

“The ability to measure the forces and direction of forces that an athlete applies to the water is the holy grail of improving elite swimming performance.”

Ian Burns, Former Director of Applied Technology &
Innovation, Australian Institute of Sport.


Access your data anytime on both the eo SwimBETTER App or Platform.

The eo SwimBETTER App

Track your progress on the go with full views of your historical swim data. You can also see an overview of key metrics for your favourite swims on your Dashboard.
Download the eo App by clicking one of the icons below or search eo SwimBETTER in the App Store or Google Play.

The eo SwimBETTER Platform

View your data in more detail on the eo Platform with larger views of your charts. If you're a coach, or team admin, you can invite swimmers to join your team, split your team into squads, allocate swims in training to particular swimmers and keep track of their historical data. To access the eo Platform, head to swimbetter.eolab.com and login with your eo Account details (email and password).



Innovation contributors

eo’s scientists have worked with some of the best minds in swimming to develop eo SwimBETTER, including:


eo SwimBETTER Product Head

Brant Best

Swimming Queensland, Coaches' Coach

Brenton Ford

Founder, Effortless Swimming


Honorary Associate Professor of Exercise Science, University of Sydney


Leave a review

A new way of looking at the stroke

“I’m very impressed with the eo SwimBETTER device. It opens up a whole new way of looking at the stroke. I haven’t seen anything like it before. Very insightful. It will open a new door for coaches and sports scientists towards optimizing the swimming stroke.”
Read more

Recommends this product: Yes


Sander Ganzevles

Insane data

“The data that I'm accumulating and analysing with eo SwimBETTER is insane. Who would have thought after all this time swimming at the highest level I'd be finding so many areas of improvement. If you're chasing better performances in the pool, I'd highly recommend the investment.”
Read more

Recommends this product: Yes


Kyle Chalmers, Olympic Champion & World Record Holder

Limitless Potential

“I have been working with the team at eo for a while now as a coach and the data that I have been able get on my athletes has the potential to change the way we look at technical feedback for swimming into the future.”
Read more

Recommends this product: Yes



An explosion of data to analyse. Insights you never had before. Be careful!

“A truly ground breaking product capturing data you never had access to before.
It can be overwhelming at first and I was a little lost to begin with. I then began to chip away methodically at stuff - imbalance left versus right, flat recovery on one side not on the…”
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Recommends this product: Yes



Improved Swimming Technique and Efficiency with SwimBETTER Handsets

“Using SwimBETTER handsets for several weeks, I identified areas of improvement in my stroke path and worked closely with my swim coach to make necessary corrections. While my technique is imperfect, I have seen improved efficiency and speed with less effort. I am eager to continue analyzing my progress with…”
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Recommends this product: Yes


Chris R

My experience w/ eo

“The device is very good. To add I would say to be able to select a section and be able to see averages of that particular section (dps, force, ...). Also to be able to see the lap time and make comparisons between laps.
It would be great to be…”
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Recommends this product: Yes



Great tool

“The setup of the sensors takes between 10-20s, then you are ready to go. The data is for the most part easy to interpret and immediately helps to make the next attempt better.
The tool is a gamechanger and worth the money! At the same time, it is still in…”
Read more

Recommends this product: Yes



What a wonder!

“Bought it to use maybe once a week, and have ended up using it every time I swim! Training just doesn't feel the same without it!”
Read more

Recommends this product: Yes



Exactly what I've been waiting for

“The eo SwimBETTER system is what I have been waiting for since I began coaching in 1970. I have used tethered machines, digitized video, among other systems to analyze stroke efficiency. This system allows me to see the points in the stroke where horizontal propulsive force is lost. This is…”
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Recommends this product: Yes


Jim Richardson, 2X NCAA Coach of the Year, 5X Big Ten Conference Coach of the Year

A swimming coaches dream

“The eo SwimBETTER system is going to change the way coaches and scientists evaluate technique and performance. I love how simple it is to get to the root of any performance data, and it can drill down into any analytic you could ever want to study or evaluate. As coaches…”
Read more

Recommends this product: Yes


Jonty Skinner, ASCA Hall Of Fame Swim Coach, Former 100m Freestyle World Record Holder

This is a game changer for swimming

“I've been waiting for something like this for a LONG time! I've been training with the eo SwimBETTER handsets for about 3 months and they've truly been a game changer for me. Unlike other devices I've tried, SwimBETTER actually gives me information I can use to improve my swim technique.…”
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Recommends this product: Yes


Steve O

A necessary tool for swimmers and coaches

“eo releases the comprehensive insight of a swimmer's force measurement and hand path and is an excellent tool for technique optimisation. It should become an important device in the toolbox of all swimmers, swimming coaches, bio-mechs and researchers.”
Read more

Recommends this product: Yes


Shang Mingyu, Ph.D., Technique Coach, Chinese Swimming Team

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