Accurately quantify your technique right on pool deck. With eo SwimBETTER you can measure the applied power generated by your hands in six directions with a device small enough to fit in your palm. It’s a game-changing moment for the sport.
The fastest way to improve your swim is to improve your technique.
eo’s scientists developed SwimBETTER for:
Swim Coaches
to enhance your eye and inform your gut with never-before-seen data insight.
Swimmers
to reduce the time between stroke analysis and intervention so you swim faster… faster.
Triathletes
to track your swim power in Watts and see how efficiently you're moving through the water.
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.
30 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 30 day money back guarantee on every order.
Every pair of handsets comes with some free time on an eo 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.

Product overview
Improve your efficiency at every speeds.
Measure your total power output alongside propulsive power and stroke rate – and, for the first time, see exactly how your power shifts as your stroke rate changes. Drive progress by holding your speed while using less power, and show evolution who’s boss.
PS: No eo membership is required to see your stroke rate & power data.
Watch our video: Stroke Rate & Force data explained
Swim faster by mastering your power distribution.
See exactly where your power is going – propulsive, hand drag, up, down, left, and right – so you can fine-tune your technique. Redirect wasted energy into forward drive, maximise efficiency, and unlock your fastest swim yet. That’s the science of defiance.
Watch our video: Force Field data explained
Hand at the right depth? Crossing over? Sweeping too wide?
Pinpoint 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 also see your hand speed at any point.
Watch our video: Stroke Path & Hand Velocity data explained
Be better more often.
Consistency is key. Instantly compare any number of your left and right strokes by overlaying their paths to spot technique changes at different speeds, identify degradation under fatigue, and catch anomalies before they cost you time. Consistency of good technique will get you swimming faster… faster.
Watch our video: Consistency data explained
Identify your propulsive time.
BBreak down the glide, pull, and recovery phases of every stroke to see the percentage of your stroke spent in each. Fine-tune your glide and pull phases to maximise propulsion and take your swim to the next level.
Watch our video: Stroke Phases data explained
Find your missing link.
Dive deeper into your power data to pinpoint stroke strengths and uncover where you’re losing power. Want the next level of detail? See how your power shifts moment by moment within each stroke – and wave your limits goodbye.
Watch our video: Force vs Time data explained
See exactly where you can gain speed.
Map propulsion along your hand path to reveal where in each stroke you’re strongest – and where you might be letting water slip away.
Watch our video: Stroke Path & Force data explained
Seamlessly sync eo SwimBETTER data to footage of your swim to make diagnosing stroke imperfections even simpler.
Watch our explainer to see how it works: Syncing Data to Video
Track your performance in the pool at a glance with a trendline showing your progress over time across a range of different metrics including: Power per stroke, Stroke rate, Distance per stroke, Strokes per lap, Time, Average velocity, and Propulsion.
PS: No eo membership is required to see your dashboard data.
Watch our video: Dashboard data explained
Need help analysing your eo SwimBETTER data? Watch our explainer for a step-by-step walk through each metric. You’ll pick up some pointers on things to look for in your data and some suggestions on tweaks you can make to swim faster... faster.
This video runs for 20 minutes, so if you’d prefer to focus on just one or a few metrics, check out the other videos below.
A quick breakdown of the home of your progress - your eo SwimBETTER Dashboard. Provides instructions on how to include and exclude swims from your dashboard metrics. It also includes advice on how you want to see each of your trend lines progress.
Breaking down the most basic of the eo SwimBETTER metrics – Stroke Rate & Force. Understand what to look for in your data and some tips on how to improve your swimming efficiency.
In the eo SwimBETTER Force Field explainer, you will discover how your forces are distributed across six different vectors. You will also learn how to improve your force distribution to improve swim speed.
Understand how to read your eo SwimBETTER Stroke Path and Hand Velocity data and discover ways to refine your stroke path to improve your force distribution.
Learn how your eo SwimBETTER Consistency data can help you instantly pick up any anomalies in your stroke.
Understand what the eo SwimBETTER Stroke Phases data can tell you about the different phases of every one of your strokes.
The most interesting of the eo SwimBETTER metrics, but often the most daunting, this Force vs Time explainer will help you pinpoint where your stroke’s strengths and weaknesses lie.
Stroke Path & Force combines our Stroke Path and Hand Velocity chart with our Force vs Time chart to show you exactly how much force you're generating, in what direction and where your hand is at every point in every stroke. It also shows your hand speed at any point in the stroke.
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 mesh bag to carry your handsets to and from the pool, and a storage case.
Please note a wall charging plug is not included in the kit. You will need access to a USB-C adaptor or charging port in your computer to charge your handsets. As most people have access to a USB-C charging port in their computr, we have chosen to exclude the charging plug to reduce electronic waste, minimise packaging and reduce our carbon footprint.
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.
“I always struggled to convert my pool speed to open water and had a hard time going sub-40, even in calm water at my 70.3 races. Finally invested in eo SwimBETTER and instantly learned my deficiencies. At my latest 70.3 race, I swam my 1.9km in 34:55.”
Stenchi
eo SwimBETTER90 Customer
THE APP
Access your data anytime on both the eo SwimBETTER app or platform.
The eo SwimBETTER app
Track your progress on the go with full accesss to your historical swim data in the eo app - available for iOS and Android. You can also see an overview of key metrics for your favourite swims on your dashboard.
Download the eo SwimBETTER app by tapping one of the icons below or search eo SwimBETTER in the App Store or Google Play.
The eo SwimBETTER platform
View your data in greater detail with larger chart views on the eo platform.
Here you can sync video footage to your swim data, and if you’re a coach or team admin, you can:
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Invite swimmers to join your team
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Organise your team into squads
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Allocate training swims to specific swimmers
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Track each swimmer’s historical data
To access the eo platform, visit swimbetter.eolab.com and log in with your eo account email and password.














eo SwimBETTER OPERATING: INSTRUCTIONS
DOWNLOAD OPERATING INSTRUCTIONS