Do I need Bluetooth to use Watta with my Concept2?

No. Watta uses your phone camera and AI-powered OCR to read the PM5 screen directly from a photo. No Bluetooth pairing is required.

Which Concept2 machines does Watta support?

Watta supports the Concept2 RowErg, SkiErg, and BikeErg. You can log workouts from any of these machines by photographing the PM5 monitor.

Can I still use the Concept2 online logbook with Watta?

Yes. Watta is a companion to your existing Concept2 setup, not a replacement. You can continue logging metres on the Concept2 logbook while using Watta for deeper insights, social features, and Effort Scores.

Does Watta work with the PM5 monitor?

Yes. Watta's AI-powered OCR is optimised for the Concept2 PM5 performance monitor. It accurately extracts split time, distance, stroke rate, time, and interval data from PM5 screen photos.

The Concept2 companion app you have been waiting for

By the Watta Team · Updated March 2026

Watta is built specifically for Concept2 ergometers. Point your camera at the PM5 monitor, and AI extracts your workout data instantly. No Bluetooth pairing, no manual entry, no ErgData crashes — just fast, reliable erg tracking.

App for Concept2 Users: Watta is a free, AI-powered rowing workout tracker. Snap your erg screen to capture data instantly. Get a 0-100 Effort Score combining cardiac load, work output, pacing, and economy. Track heart rate zones via the Karvonen method. Join clubs and squads to train with your crew.

The Problem

ErgData and the Concept2 logbook have limitations

ErgData requires Bluetooth pairing that frequently disconnects. The Concept2 online logbook is functional but lacks social features, training insights, and modern mobile design.

Bluetooth connectivity is unreliable

Pairing a phone to the PM5 via Bluetooth is finicky, especially in busy gyms with multiple machines. Lost connections mid-workout mean lost data, which is frustrating after a hard session.

No unified experience across Row, Ski, and Bike

Concept2 users with multiple machines want a single place to track all their erg work. Most apps focus only on rowing or treat the three machines as completely separate activities.

How Watta Helps

📡

No Bluetooth Required

Watta uses AI-powered OCR to read your PM5 screen from a photo. No pairing, no connectivity issues, no mid-workout disconnections. It works every time.

🏋️

RowErg, SkiErg & BikeErg

Track all three Concept2 machines in one app. Switch between row, ski, and bike workouts seamlessly, with each session getting its own Effort Score.

🔗

Strava Integration

Sync your Concept2 workouts to Strava automatically. Your erg sessions appear alongside your other activities without any extra steps.

How It Works

Snap your erg screen

Take a photo of your PM5 display after your workout. Gallery upload works too.

AI extracts your data

Watta reads every metric — time, split, distance, stroke rate, heart rate, and calories.

Get your Effort Score

A 0-100 score combining cardiac load, work output, pacing, and economy shows exactly how hard you worked.