4iiii Precision 3 Power Meter - Ultegra R8000

The 4iiii Precision 3 Power Meter has a number of positive things going for it: it boasts an industry-leading 800-hour battery life, an industry-leading +/-1% accuracy, and an industry-leading three-year warranty. You may have gathered that this is a power meter that is industry leading, in many respects.

If you’re looking to take your training to the next level, then a power meter is the way to do that. 4iiii have been perfecting their craft in producing these devices for a number of years and already produce one of the cheapest, lightest, and most accurate devices on the market, with the Precision 3 the Canadian-based company have improved on all three points.

Simply Connect And Go

The 4iiii Precision 3 is chocked full of cutting-edge tech but is still simple to install. As you’d imagine, it’s Bluetooth and ANT+ enabled, so it’ll pair easily with your choice of bike computer or indoor trainer. Whether you’re road racing or smashing intervals indoors, it’s the perfect partner.

From your device arriving pre-installed on a brand-new crank, to getting out for a ride is simple. Installation is the same as installing any Shimano Ultegra left-side crank arm. Once you’ve installed the crank arm, it’s merely a case of pairing with the app/your computer and that’s it: the world of watts, metrics, and marginal gains is your oyster! Within the app you can also update the firmware, check battery status, and calibrate your power meter.

Reliable And Accurate Power Data

It’s all well and good carting about a piece of tech that spits out fancy numbers but if the numbers aren’t accurate then there’s little point to doing so. Fear not, with the 4iiii Precision 3 power meter, you can rest assured the data you get is both accurate and reliable to +/-1%. With many years in the market, 4iiii are firmly established as reputable producers of cycling tech. So confident in their products, the brand back them all with a three-year warranty.

Born in the Canadian Rockies, this isn’t a delicate piece of equipment. It’s rated to IPX7 for water resistance, so you can confidently ride into the wind and rain.

Product Features:

• 800 hours of battery life
• Product status indication LED light – for wake up (green), zero offset (blue) and low battery (red)
• Uses patented 3D strain-gauge technology to deliver +/- 1% accuracy
• Slim design that fits almost every frame
• Three-year warranty
• Waterproof Rating: IPX7
• Weight (in addition to crank arm): 9g
• Backwards compatible with current Precision Drive Side Power Meter
• Active temperate compensation
• Feature and firmware upgradability via the app
• Coin-cell powered by a CR2032 battery
• Compatible with third party training apps such as Zwift, TrainerRoad, SYSTM, and more

Specifications:

• Cadence Range: 30-170 RPM
• Power Range: 0-4000 Watts
• Length: 63.79mm
• Width: 26.42mm
• Height: 5.5mm
• Operating Temperature: 0 to 50°C
• Storage Temperature: -40 to 60°C
• Communication Protocols: ANT+, Bluetooth®