If you’re a huge fan of cycling analytics – monitoring your improving speed, fitness level and ride pace – you’re probably aware of the many powerful cycling computers out there.
They’re powerful tools for upping your game, improving your times and reaching your athletic pinnacle.
Once upon a time, a good cycling cadence and speed sensor would cost you hundreds. They would require extensive wiring and water protection, and they wouldn’t necessarily work all that well. Not ideal, right?
But know this: you may have a cycling computer in your pocket already.
The 4 Best Cadence Sensors for Smartphones
Improve Your Cycling Analytics
There are a bunch of great apps which essentially turn your phone into a cycling computer.
Thanks to your smartphone, some clever apps, and a bit of inexpensive Bluetooth technology, a cadence and speed sensor for iPhone or Android is a reality and an affordable one at that. No wires, no fuss, and no excess gadgetry cluttering up your home or bicycle frame.
This article will review a few of the best wireless iPhone / Android cadence and speed sensors.
We’ll examine them, listing the stats, pros, and cons of each.
Best iPhone / Android-Friendly Cadence & Speed Sensors
Wireless Compatibility Issues:
Before we go over my favorite Android and iPhone bicycle sensors, it’s important to touch on compatibility.
Basically, all modern smartphones are Bluetooth equipped. This is a short-distance, low-energy radio technology that allows wireless data transmission from one device to another.
It’s what lets your phone connect to your hands-free headset while driving, and it works great in many other applications too, including cycling.
Any Bluetooth-equipped speed and cadence sensor should work with your iPhone or Android device (as long as it is modern enough.) However, most of these products are designed to function with their own app.
Some devices only work with ANT+, which is a wireless protocol similar to Bluetooth but specifically designed for fitness trackers.
Because not all smartphones support ANT+, I’ll focus on Bluetooth devices in this article (though most of the products reviewed here actually support both.)
If you’re already using and loving a particular fitness app, it’s worth checking whether the cycling sensor you like is compatible.
Wahoo Blue SC Speed and Cadence Sensor, Bluetooth / ANT+
This is a brand that has dominated this niche for the last little while. And for very good reason.
The always popular Wahoo Blue SC is a Bluetooth 4.0 compatible cadence and speed sensor that can work with both a smartphone and an ANT+ cycling computer.
It is battery powered and has no wires. All you need to do is clip it on your chainstay. To fasten, you can choose between thick rubber bands or zip ties. (My advice? Use the zip ties, they’re more secure over the long run.)
The Wahoo is waterproof and able to take a beating. It’s also pretty light, coming in at just 36 grams. The battery is not rechargeable, but this device is very low energy so that tiny little battery only needs to be replaced every 12 months or so.
The Wahoo devours data. You’ll get a readout of your cadence, your speed, and the distance you’ve traveled.
It also plays nice with lots of apps, not just Wahoo’s system. Compatible apps include Fitbit, MapMyRide, MyFitnessPal, DigiFit, and many more.
Cons: The Wahoo is slightly more expensive than some of the competition. However, it’s still a heck of a lot cheaper than a fully wired bike computer!
The Wahoo is an affordable Bluetooth cadence sensor for iPhone or Android users, and it reviews really well. Check it out!
2) Magene: An ‘armless’ Bluetooth speedometer & cadence sensor
Magene Waterproof Bike Speed/Cadence 2-in-1 Sensor ANT+ Bluetooth
This tiny little sensor speedo by Magene looks a bit different than most other iPhone cadence sensors and speedometers out there, mostly because of the form factor: it doesn’t have an arm.
This device measures both speed and cadence. It’s highly compact and one hell of a slick device.
It uses a button style battery that will last for 500 hours of continuous use, which is incredible. It’s also water resistant and can be used in rain and wet conditions. (You just want to avoid total submersion.)
It mounts to your crank arms, or to your wheel hub.
With an open API, Magene is highly compatible. Most major fitness apps will talk with it, including Strava, MapMyRide, Wahoo, ZWIFT, etc.
Cons: The interesting thing about this one? It can only measure cadence OR speed. Not both at the same time. For that reason, I suggest buying two and measuring both.
You can usually pick up two of them for under $50, making it inexpensive compared to a lot of the competition. It’s a cheap, sleek, durable, long-lasting smartphone cadence sensor with high marks for compatibility… what’s not to like?
CatEye Accurate Bluetooth Speed and Cadence Sensor for Android / iPhone
This impressive CatEye arm-style sensor, like the others in this list, will turn your iPhone or Android into a powerful cycling computer by collecting accurate wireless data.
I like this unit for its reputable brand. CatEye has been in the fitness tracking game for ages. They know their stuff, and you can count on a good warranty, industry-leading durability, and most importantly, accuracy.
I also appreciate its wide compatibility and the robust, data-rich CatEye fitness app. You can pair it to any CatEye tracking device or any smartphone.
In smartphone mode, it uses very little of your battery power.
The replaceable coin battery gives you around 1 year of use in standard conditions.
It’s Bluetooth 4.0 compatible, giving you access to all the big apps. It is not ANT+ compatible, but CatEye does make an ANT+ version.
Cons: The CatEye is higher in the price range. It’s a “big brand” item and has a premium build quality, so you’ll pay a bit extra for that. As for functionality, I have zero complaints.
It’s still under $60, which I consider affordable. It’s a top-end Bluetooth bicycle cadence speedometer with good reviews and a relatively easy setup… a no-brainer to make this list!
Coospo Smart Wireless Waterproof Fitness Bike Speed & Cadence Sensor Tracker
There are a ton of wireless bicycle cadence sensors out there that have a pretty similar design to the Wahoo. That’s fine, but I like seeing an original design, especially when it recognizes that not all bikes are constructed the same way.
The imaginatively-designed CooSpo does that. And it’s one of the most affordable Bluetooth cadence and speed cycling sensors around, coming in at under $30.
Rather than having one solid piece, the CooSpo separates the sensor into two parts, joined by a wire.
The larger portion measures your speed (using a magnet attached to your spokes.) The smaller piece points forward and keeps track of your cadence (or RPM, as CooSpo, sometimes refers to it.)
Because there is a bit of flexibility and distance between the two sections, you can customize the mounting somewhat. That’s handy on atypical bikes. It should even work on a stationary bike.
It runs on a button battery and gives about 700 hours of riding per battery; typically that’s more than 1 year of use.
CooSpo doesn’t have its own app, but this slick unit will run happily on most major iPhone and Android applications. It’s also ANT+ compatible in case you need it.
Cons: It’s basic, but the functionality is all there.
Kudos to this company for a creative approach to their product design. With good compatibility, a cheap price, easy installation, and a precise sensor, it’s worth taking a look at.
SEE MORE: Bike GPS Tracker
More To Come
This is a growing segment, and I’d expect more iPhone and Android compatible Bluetooth RPM and speed sensors to appear shortly.
I will add to this list as I see appropriate. (If you notice something exciting arrive on the market, let me know and I’ll request a review unit from the manufacturer.)
People are becoming more reliant on their mobile phones for fitness purposes. And you’d better believe that the big ‘traditional’ powers in the cycling analytics world are paying attention; CatEye is already on board, and now Garmin and Sigma are too.
Best Cadence Sensor Reviews: The FAQs
Can I use my phone as a bike cadence sensor?
With modern Android and iPhone smartphone devices, you can be able to make use of a bike cadence sensor. But the main thing to consider is that most speed sensor products have their own dedicated mobile phone apps. Regardless of your Android or iPhone smartphone model, we have reviewed some of the best cadence sensor reviews in this post.
Should I use cadence sensors?
If you want to maximize biking performance and results, you should consider getting a bike speed and cadence sensor. Whether you are a pro cyclist or an enthusiast who wants the best experience in the sport, these sensors can make a noticeable difference when you start using any one of them. The best part is that they cannot be compared with a normal pedometer.
Are Garmin speed and cadence sensors Bluetooth?
Through the ANT+ and Bluetooth features, you can connect your Garmin sensors to any compatible Android and iPhone apps. When connected properly, you’ll start getting some speed, cadence, and distance data in your app. With that insight, you’ll gain the ability to make progressive improvements in your cycling performance.
What is the best Garmin watch with a speed sensor?
1. Garmin Approach S60
2. Garmin Approach S62
3. Garmin Captain Marvel
4. Garmin D2 Air
5. Garmin D2 Bravo
6. Garmin D2 Delta PX
7. Garmin Darth Vadar
8. Garmin Descent MK2i
9. Garmin D2 Delta S
10. Garmin D2 Charlie
What is the price of bike cadence sensor?
Bike cadence sensors often differ in terms of brand and model. Price is another differentiator you’ll see when you look into the best bike cadence sensor reviews. Regarding the price of bike cadence sensors in the market, you’ll find a range between $40 and $90. But before making any purchase, please check compatibility with your device.
Any important sensors that I missed? What do you track with? Feel free to chime in below.
Steve Beck is a passionate cyclist and experienced writer covering the cycling industry for over a decade. He has a wealth of knowledge and expertise in all bike-related things, from the latest products and technologies to the best routes and trails. His articles are well-researched, informative, and engaging, and he has a talent for explaining complex cycling concepts in a way that is easy to understand. Steve can be found on the road when he’s not writing about bikes, putting his knowledge and skills to the test.