4iiii’s most powerful unit to date, compressed into a smaller, lighter package and equipped with Apple Find My, the PRECISION 3+ Powermeter is a proven choice for both professional and amateur cyclists. Whether you're fighting for a qualification spot in Kona, logging countless hours on virtual cycling platforms, or aiming to improve your time on the local KOM segment, you need accurate and reliable tools to unlock your potential. With up to 800 hours of battery life, an automatic terrain selector, +/-1% accuracy, and backed by our industry-leading 3-year warranty, the PRECISION 3+ Powermeter will be your trusted companion for years to come.

HOW IT WORKS
The PRECISION 3+ Powermeter is much more than a power meter. It’s your training partner, offering you peace of mind. While cycling, your PRECISION 3+ Powermeter sends watts, cadence, and calories to your preferred navigation device. When not in use, Find My is activated, and your powermeter turns into an Apple Airtag. You can add your bike and view its location via the Apple FindMy app on your iOS device.

FEATURES

APPLE FIND MY
Peace of mind knowing exactly where your bike is, wherever you go.

800 HOURS BATTERY LIFE
With up to 800 hours of battery life using the same CR2032 coin cell battery, you won’t need to worry about replacing your PRECISION 3+ battery for years.

3D ACCURACY
Not everyone has the perfect pedal stroke. With an accuracy of +/- 1%, 4iiii is the only crank-based power meter that uses 3 strain gauges to measure all forces in your pedal stroke.

AUTOMATIC TERRAIN SELECTOR
Automatically detects the terrain you’re riding on for more responsive cadence and power feedback/data. Ride with confidence on less-traveled roads.