XOSS Vortex Cadence/Speed Sensor ANT+/Bluetooth 4.0, Outdoor/Indoor Wireless IPX7 Dual Modes Bike Computer RPM Sensor for Road Bike/Spinning Bike/MTB

This is a perfect cheaper alternative to the equivalent Garmin sensor. It was very easy to pair with my Garmin watch through the phone app. I now have precisely the same distance counting as my MTB mates with other types of sensors. I'm satisfied with it so far.

The vendor was great to replace one of the two units after it failed. Fresh battery last week for BWR, rides mud off after the ride and dried it well. Failed this morning. The seal is poor making it not usable in damp/wet weather or after washing the outside. I replaced batteries in both units in less than 3 months. Meanwhile I replaced the battery in my garmin speed sensors maybe every 9 to 10 months.

Even though this product had mixed reviews I decided to give it a shot. It has been working great for me. I don't have any trouble pairing to my iPhone XS max on the app. Many of the reviews complained about battery life. I did see it drop by half on the first day and eat through the first battery. After I installed the second battery, I started disconnecting the sensor and closing out the app after use. I have now been using the same battery for a month and its still at 75%.

I wanted this for an Enduro app on my phone that is more accurate with a programmed Bluetooth wheel sensor. Standard gps was somewhat inaccurate. Just attach it to the front or rear hub, pair it to the phone, and when running my app, it immediately sees the sensor.

Let's start with fundamentals, the sensor transmits whe it wants and the information it wants. If you pedal at a steady cadence you can see the indicator constantly changing by a lot, so the average is a disaster. Then it's the way it attaches to the crank with a single rubber band (O ring)...if it fails due to rubbingm sunlight, cleaning products...then bye-bye sensor. Had it for 3 days and that was the end of my patience. Got the Wahoo!

Some reviews that I've seen were mixed. It works great. You have to follow the process to wake them so they connect. Then when you record your ride you will see the data transmit to the bike computer and phone.

As if it wasn't enough having to sign up for the XOSS app in order to use it so I can assign one of the sensors to speed, I tried and tried to get it to detect both sensors on a Garmin Edge computer, but consistently, only cadence was detected. In the process of trying to make it work, the battery on the cadence sensor lost almost 5% of its charge. That said-- It does appear to be a high quality item and fits nicely on the crank arm and wheel hub with the supplied pads and bands. This is likely an excellent product if you have a XOSS bike computer, but if you have only Garmin, it's a pain to make it work, and ended up impossible (for me, at least) to detect as a speed sensor.

Very easy to install, great simple instructions, and if your just starting out on your cycle training and are not sure how much of the gear that's out there you need. Start with these!

Great sensors works like a charm. Go for them. 👍🏻

I tested two sensors: Cadence was working fine - no issues. Speed - after two rides, the battery was dead... I replaced the battery and again after two rides, the battery was down below 40%. I wanted to replace this faulty speed sensor, but Seller informed me they can do it only within 15 days after purchase and now I need to contact the Manufacturer for a warranty. No contact details were provided: "For warranty purposes please contact the manufacturer. We are only sellers who ship products from the USA. Thank you for your cooperation!"

These have been a god send to get into a habit of keeping up cadence and speed which forces good gearing. Bluetooth worked oob with very little issue during pairing. Certainly value for money. Installing the speed sensor inside the cycle tyre was tricky to do i somehow managed. App is also great and able to sync with strava