XOSS Bike Cadence Sensor & Speed Sensor Speedometer Bicycle ANT+ Bluetooth 4.0 Wireless Cycle Computer

These little guys work well once you figure out how to use the Red or Blue LEDs to designate cadence vs. speed sensor settings. With my Garmin 810 GPS, I'm using two sets (one for speed, the other for cadence). It's effective, and it's inexpensive (less than $20 per unit). br>br>After 6 months, I changed to a 5 star rating. I've only had to replace the sensors' batteries once, but they've served me well for over 1,700 miles on the road on my bike. Excellent deal, solid device(s). For the winter, I bought a cheap fluid trainer, installed an ANT ($15) module on my Windows computer, and now I'm riding on Zwift!.

Christian Sellers

| Oct 08, 2021

EDIT: Because I wanted to use an old ANT speed sensor, I put this away for about a year. I upgraded my Zwift setup to an Apple TV last week. ANT is not used by ATV. This was given a new battery. It was immediately picked up by ZWIFT. There will be no issues. br>Purchased this to use with my new smart trainer, a Wahoo Kickr Snap, which, surprisingly, does not send cadence data to Zwift. I had an older Garmin speed/cadence sensor connected, but it is only compatible with ANT. It worked fine, but for the price, I decided to get this XOSS to keep everything on Bluetooth so that the Zwift Companion app for iOS could take over. I took a while to set this up because I assumed that once the battery was installed, the indicator light would flash continuously to indicate the mode. If your hand is covering your face, it's difficult to notice that you only blinked once. Anyway, it was a breeze to install the crank arm once I figured it out. I put it through its paces on Wahoo's app with the weekly calibration spin turned off. I launched Zwift on my computer after the app found it without issue. The device was quickly found by Zwift (rather, the iOS companion app). I went on a Watopia course ride. The reported cadence seemed to be about 5 rpm higher than what I felt with the old sensor. I'll keep track of my rpms next time, but for now, it'll suffice.
NOTE: Those who gave it a negative review did so because they expected it to appear in their iOS BT device list, which it does not. It's only meant to work with apps that use this type of Bluetooth.

Erick Sparks

| Jun 24, 2021

" When most BT sensors are left idle for a long period of time, they will go to sleep. These sensors are always on; the first set died after two weeks on the shelf while my bike was in the shop. I had them replaced because I believed they were defective. That's when I realized they're on all of the time. The only way to turn it off is to remove the battery, which is a major pain when it's mounted on the bike, and XOSS refused to help me because I bought it. Instead of using their website, you should use Amazon because the money you save on these will be spent on batteries.

Sofia REES

| Apr 26, 2021

On an Android phone, it cannot be used as a speed sensor. Connecting to it requires the use of a compatible app (I use Wahoo). When Android's Bluetooth detects it, it will attempt to connect, but it will fail because the password is incorrect, despite the fact that it was never asked for. I can't vouch for its accuracy vs. GPS or other speed sources because I'm using it on the axle of a stationary bicycle, but the effort vs. speed appears to be accurate. br>I can't vouch for it's accuracy vs. GPS or other speed sources because I'm using it on the axle of a stationary bicycle. br>Worth the money, in my opinion, and don't believe the knuckleheads who say it doesn't work; it does. All you need to do now is find an app that will work with your device. I'm thinking about getting another so I can get the cadence from the speed of my feet and legs.

Kamden REES

| Feb 25, 2021

Batteries are devoured at an alarming rate by these creatures. I go for a ride once a week, and the battery lasts about three weeks. The sensors must be removed and the battery must be replaced. Because there is no on/off switch, these are always "on," causing the batteries to drain excessively quickly. When they work, they're fantastic, but the lack of a battery renders them completely useless. I ride with dead batteries the majority of the time.

Clare John

| Jun 16, 2021

You will almost certainly be unable to connect the Bluetooth Lower Energy to your phone, PC, or MAC via Bluetooth. I was unable to do so. To locate the BLE device, you must use a fitness app - Zwift on a PC and the Zwift companion app on an iPhone are what I use. Returning to the combo PC Zwift app and companion, spinning the back wheel to activate the XOSS, then suddenly the device showed up in the Speed Sensors, I fought this for nearly an hour until I installed a BLE scanner on my phone and it saw the XOSS device was alive, then returning to the combo PC Zwift app and companion, spinning the back wheel to activate the XOSS, then suddenly the device showed up in the Speed Sensors. br>br>I was on the verge of returning it for a refund! I may raise my rating if it continues to work.

Samson Carrillo

| Dec 06, 2021

Because it's so thick, it won't fit inside my Shimano Ultegra crank arm as a cadence sensor, and it'll hit the chain stay and down tube. I discovered that if I place it as close to the spindle as possible, it registers cadence without being hit by my shoe. It worked perfectly with my iPad, but be warned if you have wider feet than me. br>br>Recently updated: Because my shoe kept hitting it while riding on my trainer, I had to attach it to my shoe. To get the sensor to register, you have to get the horizontal axis of the sensor more or less vertical, which isn't surprising, but it takes away a star from my original rating.

Jaime Duran

| Sep 28, 2021

When I'm out on long training rides, I use it to keep track of my cadence. I like knowing that I'm always spinning at the same cadence and that I can tell if I'm getting lazy or starting out too hard; it's a very simple way to keep track of where you're at spinning-wise. I can't believe more people haven't picked this one up.

Amalia Rollins

| Apr 04, 2021