4iiii

Precision 3+ Power Meter Ultegra 8000

4iiii Precision 3+ Power Meter Ultegra 8000 brings world-class accuracy and modern connectivity to your ride in one of the lightest, most discreet power meters available. Whether you’re training for race day or dialing in your everyday fitness goals, this left-side crank-based meter delivers the data you need—with no fuss and plenty of reliability.

Featuring +/-1% accuracy, ANT+ and Bluetooth compatibility, and an incredible 800-hour battery life, the Precision 3+ ensures consistent performance through every season. Its Find My integration adds peace of mind by letting you locate your power meter via your Apple devices if it’s ever misplaced. At just 9 grams, it’s nearly invisible on your bike but delivers a major edge in understanding and improving your power output.

• Seamless Apple Find My support—track your power meter from your iPhone, iPad, or Apple Watch
• +/-1% accuracy for precise watt and cadence data
• Up to 800 hours of battery life from a single CR2032 coin cell
• Lightweight (9g), low-profile design fits cleanly on your crank arm
• Compatible with ANT+ and Bluetooth head units and apps
• Automatic terrain selector for optimized readings across varied conditions
• Durable and waterproof construction for year-round reliability
• Backed by a 3-year warranty for long-term confidence

With a 30–170 RPM cadence range and 0–4000W power range, the 4iiii Precision 3+ Power Meter Ultegra 8000 delivers professional-grade performance in a compact, easy-to-use package. It’s the smart, unobtrusive upgrade that helps every ride count.