Our 4iiii collection brings together advanced cycling power meters and performance technology designed to help riders train smarter and measure what matters. Built for cyclists who want accurate, real-time data, 4iiii products are trusted for delivering the insights needed to track output, structure training and improve performance on the road, trail or turbo.
Whether you’re targeting specific power zones, preparing for races or simply looking to understand your effort more clearly, each product in this collection is selected for accuracy, reliability and practical performance. Trusted by serious riders and designed for real-world training, 4iiii helps you turn data into progress on every ride.
What is 4iiii known for in the sports technology industry?
4iiii is renowned for its innovative contributions to sports technology, with deep roots in the Canadian Rockies. The company is best known for inventing ANT+, a wireless communication protocol that revolutionised the way fitness devices communicate. ANT+ quickly became the standard for wireless fitness technology, enabling seamless connectivity across a range of sports devices. 4iiii also played a key role in the development of Nike's speed and distance monitor, alongside the Nike foot pod.
How did 4iiii become a leader in sports technology?
4iiii's journey to becoming a leader in sports technology began with its invention of ANT+, a game-changing protocol that allowed different fitness devices to communicate wirelessly. The company’s collaboration with major brands like Nike and Dynastream laid the foundation for wireless fitness solutions. In 2006, Dynastream was sold to Garmin, further solidifying 4iiii's impact on the sports tech industry and ensuring their technology would continue to drive innovation worldwide.
Does 4iiii offer products that work with other fitness devices?
Yes, 4iiii's products, including its powerful sensors and devices, are designed to work seamlessly with other fitness equipment. Thanks to the ANT+ protocol, 4iiii devices can connect to a wide range of third-party fitness devices, such as heart rate monitors, cycling computers, and smartwatches. This compatibility allows athletes to collect and analyse performance data across various platforms for enhanced training experiences.
4iiii 105 R7100 Precision 3.0+ Power Meter
4iiii Viiiiva Heart Rate Monitor £65.00 /
4iiii Dura-Ace 9200 Precision 3.0+ Power Meter
4iiii GRX Precision 3.0 Power Meter
4iiii Ultegra R8100 Precision 3.0+ Power Meter
4iiii Fliiiight Smart Trainer
4iiii Factory Install Precision 3.0+ PRO Power Meter
4iiii Dura-Ace 9200 Precision 3.0+ PRO Power Meter
4iiii Ultegra FC8100 Precision 3.0+ Pro Power Meter
