Bryton Smart Speed & Cadence Dual Sensor – Magnetless, ANT+ & Bluetooth, 270-Hour Battery

The Bryton Smart Speed & Cadence Dual Sensor measures both wheel speed and pedalling cadence from a single unit, transmitting both data streams simultaneously via ANT+ and Bluetooth 4.0 to compatible bike computers, smartwatches, and smartphones. It's the practical alternative to buying the Smart Speed Sensor and Smart Cadence Sensor separately — one sensor, one battery, one installation, covering both metrics. Speed and cadence are two of the most useful cycling metrics: speed data from a wheel sensor is more consistent than GPS alone (particularly in tunnels, urban environments, and at low speeds), while cadence data helps you optimise pedalling efficiency and avoid grinding low gears.

The magnetless design detects both wheel rotation and crank rotation without needing separate magnets, making installation straightforward. The sensor mounts to the crank arm with cable ties (additional holes provided for universal fit across all crank and wheel sizes). The CR2032 battery provides up to 270 hours of active use and 300 days of standby, and is easily replaceable. The sensor is IPX7 waterproof (1 metre for 30 minutes) and operates from -10°C to 60°C, making it suitable for all-weather and all-season riding. For riders who also want heart rate monitoring, the Bryton Smart Heart Rate Monitor is available separately.

Browse the full Bryton range or our computers and GPS collection for compatible Bryton bike computers.

What It's Good For

• Speed and cadence from a single sensor — one unit, one battery, one installation
• Magnetless design — no magnet alignment required, fits all wheel and crank sizes
• ANT+ and Bluetooth 4.0 — compatible with most bike computers, smartwatches, and smartphones
• 270 hours active battery life on a standard CR2032 cell — 300 days standby
• IPX7 waterproof — suitable for all-weather riding
• Operates from -10°C to 60°C — suitable for all-season use
• More economical than buying speed and cadence sensors separately

What It's NOT Good For

• Riders who only need one metric — if you only need speed, the Smart Speed Sensor is available separately; if you only need cadence, the Smart Cadence Sensor is available separately
• Heart rate monitoring — use the Bryton Smart Heart Rate Monitor for heart rate data
• Devices without ANT+ or Bluetooth 4.0 support
• Sustained water immersion beyond IPX7 rating

Frequently Asked Questions

Is it compatible with non-Bryton devices?
Yes — the sensor transmits via standard ANT+ and Bluetooth 4.0 protocols, making it compatible with the vast majority of bike computers, smartwatches, and cycling apps that support speed and cadence sensors, including Garmin, Wahoo, and others. It is not limited to Bryton devices.

How does a single sensor measure both speed and cadence?
The dual sensor uses an accelerometer that detects two different types of rotation: the faster rotation of the wheel hub (for speed) and the slower rotation of the crank arm (for cadence). The sensor's firmware distinguishes between the two rotation rates and transmits them as separate data streams to your device simultaneously.

Is this better value than buying the speed and cadence sensors separately?
For most riders, yes — the dual sensor costs less than buying the Smart Speed Sensor and Smart Cadence Sensor separately, and requires only one installation and one battery to maintain. The main reason to buy separately is if you want to move one sensor between bikes while keeping the other fixed, or if you only need one of the two metrics.

How do I install it?
The dual sensor mounts to the crank arm using the included cable ties — no tools or magnets required. Position the sensor on the crank arm, secure with cable ties through the additional mounting holes, and pair to your device via ANT+ or Bluetooth. Enter your wheel circumference in your device settings for accurate speed and distance calculation.