10 Best Bike Cadence Sensor 2025 in the United States

The Magene S3+ is a lightweight bike sensor designed to track either speed or cadence, but not both simultaneously with a single unit, meaning you’ll need two sensors if you want to monitor both metrics. It supports Bluetooth and ANT+ connections, making it compatible with many popular cycling apps and devices like Wahoo Fitness and Zwift. When pairing via Bluetooth, it can only connect to one device or app at a time, while ANT+ allows multiple connections.

The sensor mounts conveniently on the handlebar and has a solid IP54 rating, offering decent protection against dust and splashes, which is good for outdoor riding. Its battery life is impressive, lasting up to 500 hours, so you won’t have to worry about frequent replacements. One small drawback is that you can’t pair the sensor through your phone’s Bluetooth settings directly; you must use the app’s search function, which might confuse some users at first. The device also features a power-saving sleep mode that activates when stationary, helping to extend battery life.

Praised for being easy to install and generally accurate, the sensor is best suited for riders looking for an affordable, reliable option to track their cycling data, especially if they already use ANT+ compatible devices or apps. If you want a simple and durable sensor with long battery life and decent connectivity, the Magene S3+ is a solid pick, but remember to get two units if you want full speed and cadence tracking.

The Wahoo RPM Cycling Cadence Sensor is an excellent option for cyclists who want to track their cadence and speed effectively, whether they're riding outdoors or on stationary bikes. One of its standout features is the dual-band technology, which allows it to connect seamlessly with a variety of devices including smartphones and bike computers via both Bluetooth and ANT+. This compatibility means that users can easily integrate it with popular training apps like Zwift and Peloton, enhancing their cycling experience.

Installation is another strong point; the sensor is designed for a universal fit, attaching easily to most bikes without the need for magnets, making it user-friendly even for those who may not be very tech-savvy. The visible connection indicators, with LED lights for device connection and cadence detection, provide clear feedback, which is reassuring during workouts.

However, there are some drawbacks to consider. With a battery life of only 8 hours, frequent users may find the need to recharge it more often than they would like, especially during longer rides or training sessions. Durability is also an area to keep in mind; while it has an IPX7 rating, which means it's water-resistant, users should be cautious in extreme weather conditions. Additionally, while the accuracy is generally good, some casual users might notice discrepancies when comparing data with more advanced sensors.

The Garmin Speed Sensor 2 and Cadence Sensor 2 Bundle stands out as a robust choice for cyclists looking to enhance their training. One of its biggest strengths is compatibility; it works seamlessly with various Garmin devices and popular training apps, allowing users to monitor their performance effectively. The sensors are designed for easy mounting—the speed sensor can be attached to the hub of either wheel, while the cadence sensor clamps onto any crank arm, making setup a breeze. When it comes to data accuracy, the sensors provide reliable speed and cadence readings, which are crucial for effective training. The added odometer feature on the speed sensor helps with bike maintenance planning, a handy touch for long-term users.

However, there are some drawbacks to consider. The battery life, while decent, may not be as long-lasting as some competitors, necessitating regular battery checks and replacements. Additionally, while the sensors are marketed as durable, as with any electronic device, they may be susceptible to wear and tear over time, especially in harsh weather conditions. The reliance on both ANT and Bluetooth might lead to connectivity issues for some users if they are not within range of a compatible device.

This bundle is a suitable option for cyclists who prioritize training data and integration with their devices, though individuals seeking extreme durability and long battery life may wish to explore additional alternatives.