Coxswain helps you organize your rowing: Connect your Android device to your Waterrower and choose your training program.

• record your workout while watching Youtube videos or other media (choose an intent to be executed on training start)
• row against previous workouts
• adjust the workout display (long press to choice from distance, duration, strokes, energy, speed, pulse, stroke rate, stroke ratio, time, split, average split, delta distance, delta duration)
• export your workout to TCX (Training Center XML) to import it into your favorite fitness tracking App or service.
• export your workout to your calendar
• export your workout to Google Fit (experimental)
• read heart rate from your Waterrower, Android sensor or a connected Bluetooth LE/Ant+ device

Your Waterrower S4 can be connected to your Android device

• either via USB-OTG adapter (USB-A-female to USB-micro/USB-C resp.), requires On-The-Go (OTG) support on your device
• or Bluetooth, requires the Waterrower S4 Bluetooth Comm Module

Sideload from https://github.com/svenmeier/coxswain/releases/latest or install from Google Play:

This app is under development. Please report problems and ideas and/or support the development by a donation: