Straightforward Performance

S4 Performance Monitor

Essential Metrics. Focused Training.

Clearly displays key workout data, including time, distance, stroke rate and intensity measured in 500-metre split time, watts or calories. Set time or distance workouts and monitor your performance without relying on an app or connected device.

Essential Workout Data

Essential Workout Data

View time, distance, stroke rate and intensity measured in 500-metre split time, watts or calories as you row.
Set Your Workout

Set Your Workout

Create time or distance-based workouts and monitor your progress towards your chosen training target.
Simple, Focused Operation

Simple, Focused Operation

Straightforward controls and a clear LCD display provide reliable performance feedback without requiring an app or connected device.

Bluetooth Data

COMMODULE

Add Bluetooth connectivity to the S4 Performance Monitor with the WaterRower ComModule. Connect your WaterRower to compatible training apps for guided workouts, progress tracking and virtual rowing experiences.

Add Bluetooth
When You’re Ready

Pair the S4 Performance Monitor with the optional WaterRower ComModule to connect with WaterRower Connect. Track your workouts, monitor progress and share your training data with Strava and Apple Health.
Learn More

What You Get

A clear LCD monitor positioned on the right-hand side of your WaterRower, displaying all your essential rowing metrics as you train.

Unplugged Rowing

Powered by four AA batteries, the S4 Performance Monitor lets you row wherever you choose without relying on wall power.

Who It's For

Choose the S4 Performance Monitor for straightforward, app-free performance tracking, with the option to add Bluetooth connectivity with the ComModule accessory.

Compatible With Leading Rowing Apps

With the addition of the ComModule accessory, pair the S4 Performance Monitor with a range of compatible apps to access guided workouts, track your progress, explore virtual rowing experiences and enjoy entertainment while you train.

Additional Apps

The S4 Performance Monitor and ComModule support the following compatible training and entertainment apps.

CityRow

CityRow brings instructor led workouts, immersive rowing and expert coaching to your WaterRower. From rowing and high intensity training to strength, mobility and yoga, CityRow provides everything you need to build a varied and motivating fitness routine.

Explore interactive 3D rowing worlds, follow structured workouts, complete challenges and race other rowers online.

Be guided by coach led programs and workouts. Designed by olympic level coaches and athletes.

Discover rowing videos from rivers, lakes and waterways around the world. Your effort controls the speed of the route as you row.

Configure Your WaterRower

Choose either the S4 Performance Monitor or the S4 Performance Monitor with ComModule when selecting the Performance Technology for your WaterRower Lite.

WaterRower Lite

Configure now