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

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.

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%.

Great product. Easy to unstall will probably buy another one for my other bike.

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.

They seem to communicate with my Garmin cycling computer well and it seems to be accurate but then again I don't have anything to compare it to. I was happy with them at first but then I realized these sensors are absolute battery hogs. Batteries need to be replaced every couple of months or you end up ready to ride and then realize that the batteries are dead like have happened to me a few times. Yes, you do save $ up front by buying cheap but then you have the hassle of swapping out batteries very often. I ran in to someone yesterday that is using official Garmin speed and cadence sensors, he says he has had the same batteries for over a year. I may just splurge and buy those instead of having to order more batteries and having to replace them every couple of months. Oh, and this happens even if the bike is not used. I've been lazy for the last few months and haven't ridden so therefore these sensors should not be draining the battery but that is not the case.

Bought this for my daughters bike so wouldn't have to buy another "G" brand name at their price. Easy to set up and connects to the computer no problem. It is off on its accuracy sometimes, that is the only reason I removed a star. Bottom line, worth the money.

Disappointed the battery I installed was 100% the day I received. Both sensors at 100%. The next day 1 stayed at 100% and the other one about 20%.

In large display format on my phone it will not display speed and cadence.