Customer Ratings & Reviews

My best friend recommend me this product! This product is very comfortable to wear for the entire night! As a beginning user, Yono provides me very accurate data, and save my life!

I received the device and used it for a few days! Really love it! It is comfortable to wear and solved my problem of taking BBT data every morning.

This earbud is easy and comfortable to wear. It's convenient to have it automatically update temp on their APP instead of manually input the data myself. Love this small gadget!

I heard of this product a while ago. Now I finally got one. I've been using it for more than a week now. It fits my ear perfectly and I can't feel a thing during sleep. The coolest thing is that I can see my temperature throughout the night and it gives BBT very close to what I used before. Overall it is a really cool product!

After hearing compliments about YONO from my friend, I finally decided to get one for myself. I like the product design: small and nice and easy to use. After wearing it for a while, I got used to the feeling and was not bothered by the earbud. The tracking system for data collection is also very smooth. I'm really happy to have this small high tech device.

My husband bought this for me when we were trying to have a baby. Instead of waking up every morning at the same time and taking your temperature and recording it, the Yono thermometer does it while you sleep. It is more accurate than taking your temperature by mouth. Plus, all data is sync to a wonderful phone app. Love this little device!

I was very interested in this product when I first heard about it from a website. Finally got it and it's doing a great job for me. very comfortable to wear at night and seems like it can collect enough amount of data for better ovulation predictions than the other products you can find on the market.

Glad there is such innovative solution for us. The earbud is very comfortable to wear and the APP works fine.

The concept of the product is amaizing but after less than a week of use I had to returned it, I did my research online and based on the reviews I was torn between the Daysy and this one, but the idea of not having to wake up at the same time every day to get my temperature read was amazing to me, in fact the product worked WONDERFUL for the few days it lasted, I started to use it Wednesday last week, did everything the instructions say, everything was a smooth process, but today when I woke up and put the ear bug back to the base the base was not working... out of nowhere, it's been in the little table next to my bed the whole time and it was working just fine and out of the sudden, it didn't blink when I put the ear bug back... I really wanted this to work! But I just had to return it to Best Buy since they can't troubleshoot at the store, I don't need a product that I'm paying this amount of money not to work... btw would be very good for the company to include a charging outlet for the wall, to charge the thing, not just the cable I think the money it cost should include that.

The ear bud is small that I don't fell any uncomfortable when wearing it overnight.

Saved my trouble of measuring and recording BBT every morning. It took me a few days to get used to the earbud when I'm sleeping. After the first few days, I don't really feel it at all.

This is a gift to our best friends. They really love it.