4iiii brings precision power measurement from the Canadian Rockies to your rides in Australia. Their meters are built around accuracy, durability and cutting-edge tech like 3D strain sensing and Apple Find My integration. You get elite-grade data without the elite price tag.

4iiii sprang to life in 2010 with a mission to make professional-level training tools affordable for everyday cyclists. Its founders were veterans of Dynastream, pioneers behind the ANT+ communication standard used widely in fitness tech. Early releases included wearables like the Sportiiii heads-up display and the Viiiiva Heart Rate Monitor, innovations aimed at giving athletes more actionable feedback in real world situations.

High-level partnerships—like supplying power meters to teams such as Etixx Quick-Step and Bora Hansgrohe— helped product development stay grounded in performance demands. That means when you buy a 4iiii power meter today you’re getting gear honed in the pro peloton, refined for your weekend rides.

• 4iiii Power Meters

• Highly accurate readings: Every meter uses patented 3D strain gauge technology and has been third-party tested to be within ±1%, so the power data you train with is reliable.
• Long battery life and rugged build: Ride with confidence thanks to IPX7 waterproofing, batteries that last hundreds of hours and a three-year warranty.
• Advanced metrics and features you’ll actually use: Features like left/right balance, torque effectiveness, automatic terrain detection and Apple “Find My” integration are built in, not locked behind premium price tiers.
• Pro-level pedigree, everyday performance: Gear used by World Tour teams and triathletes, adapted for riders across road, gravel, mountain bike disciplines. You benefit from what’s learned at the front.