--- product_id: 38347045 title: "YONO Fertility Monitor, Bold Violet" brand: "yono health" price: "10705₫" currency: VND in_stock: false reviews_count: 8 url: https://www.desertcart.vn/products/38347045-yono-fertility-monitor-bold-violet store_origin: VN region: Vietnam --- # YONO Fertility Monitor, Bold Violet **Brand:** yono health **Price:** 10705₫ **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** YONO Fertility Monitor, Bold Violet by yono health - **How much does it cost?** 10705₫ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/38347045-yono-fertility-monitor-bold-violet) ## Best For - yono health enthusiasts ## Why This Product - Trusted yono health brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Product Description YONO is the only wearable earbud to measure Basal Body Temperature, which may be used in predicting ovulation, natural family planning and understanding female hormonal health. YONO provides a seamless and effortless solution to get your BBT data. Simply wear YONO earbud during sleep - everything else is taken care of by YONO! From the Manufacturer Sorry, this video is not supported on this browserPlay VideoPlayMute0:00/0:00Loaded: 0%0:00Progress: 0%Stream TypeLIVE0:00 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio TrackFullscreenThis is a modal window.Beginning of dialog window. Escape will cancel and close the window.TextColorWhiteBlackRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentBackgroundColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentTransparentWindowColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyTransparentSemi-TransparentOpaque">Font Size50%75%100%125%150%175%200%300%400%Text Edge StyleNoneRaisedDepressedUniformDropshadowFont FamilyProportional Sans-SerifMonospace Sans-SerifProportional SerifMonospace SerifCasualScriptSmall CapsReset restore all settings to the default valuesDoneClose Modal DialogEnd of dialog window. Fertility tracking with YONO earbud and YONO Fertility APP YONO earbud and YONO Fertility APP work together to make fertility tracking simple and easy. Overnight continuous body temperature readings YONO provides overnight, continuous body temperature readings. Users can either use BBT provided by YONO APP, or manually input BBT data in the APP. No data transmission during sleep No data transmission when worn every night; the data only syncs when the earbud is in the base station. Comfortable silicone encased YONO is a comfortable, silicone encased earpiece (similar to an phone or music earbud) that ensures the material in touch with the skin is not irritated and is always comfortable. Charting BBT - seamlessly and effortlessly In the morning, after wearing YONO during sleep, you may sync data with a smartphone to get overnight temperature data. You know your body with YONO Based in Silicon Valley, YONO Labs was founded by a group of engineers and entrepreneurs passionate about changing the way people collect and use data. We want to empower women by providing relevant, revolutionary data about their body. About the Startup Describe your product in 3 words. YouKnow with YONO How did you come up with the idea for this product? The idea of YONO comes from our own experience. Two of our team members had the experience of trying to use BBT data to get pregnant as suggested by our OB/GYN. We found the process very painful and frustrating. Many days, we forgot to measure or record needed data before we got up. Other days, we forgot to prepare a bedside thermometer before sleep. So, for women like us, we wanted to solve the problem of collecting data. What makes your product special? YONO makes charting BBT seamless and effortless. Measuring and recording body temperature continuously during sleep, YONO earbud provides actual basal body temperature (BBT) data for users. YONO earbud creates an enclosed and controlled environment in the ear canal so that the reading is not affected by room temperature. When used for longer periods of time, the YONO Fertility APP will increase accuracy in predicting ovulation windows. What has been the best part of your startup experience? Building the world's smallest and first wearable in-ear device was definitely a great achievement. Delivering the first batch of YONO earbuds to our users, enabling them to make charting much easier, was the happiest moment of our startup experience. ## Images ![YONO Fertility Monitor, Bold Violet - Image 1](https://m.media-amazon.com/images/I/41GKuzrMJ2L.jpg) ![YONO Fertility Monitor, Bold Violet - Image 2](https://m.media-amazon.com/images/I/51vZy-mXwmL.jpg) ![YONO Fertility Monitor, Bold Violet - Image 3](https://m.media-amazon.com/images/I/51srQpsn2gL.jpg) ![YONO Fertility Monitor, Bold Violet - Image 4](https://m.media-amazon.com/images/I/31YcbFavhsL.jpg) ![YONO Fertility Monitor, Bold Violet - Image 5](https://m.media-amazon.com/images/I/515WUaSzFtL.jpg) ## Customer Reviews ### ⭐ So Disappointed! *by A***R on Reviewed in the United States on March 15, 2017* I am so disappointed, I have has this for for 3 months and it has already stopped working. While it was working it was nice, however, I went out of town for a week and forgot to pack it. When I got back home a week later the charge had run down and now it will not take a charge. I have used every plug and every cord in the house, nothing has worked. For the amount of money that I spent I really expected it to last longer than three months! Buyer beware!!! ### ⭐⭐ Save your money! *by N***. on Reviewed in the United States on March 20, 2017* This was a real disappointment. I was excited to get it. But I have had 7 days in the last three weeks that it has not monitored my temps of which 3 of those days was within the first week. My temps were always so much lower than my in mouth readings( like 1-2 degrees lower). The ear piece never became comfortable enough as I had to adjust it multiple times a night. All in all I would not buy this again. It's a good concept but they still have some kinks to work out. I'd say overall save your money. In fact I'm returning it today. ### ⭐⭐ Excited for a wearable tracker but too uncomfortable *by E***F on Reviewed in the United States on May 17, 2017* In a nutshell: too uncomfortable.Pros: (1) Love that I don't have to wake up to take my bbt, as my wake-up time varies between 5am and 7am. (2) I also love that the bbt goes directly to the app so I don't have to enter it myself.Cons: (1) It hurts. I've worn it now for 4 nights and it is killing my ears. It felt okay the first time I put it in, but after two nights of wearing it in the same ear, my ear is really sore and hurts to touch. I switched ears thinking maybe switching ears every night might help but my other ear hurt after just one night. Very uncomfortable. (2) It works fine, although the connection to the app is iffy. I have to connect it to the app, shut the app down, then open the app again to see the data, and this morning the data never showed up.I'm returning the product and am going to try a different wearable monitor, such as Ava, that won't be so uncomfortable and painful. If it weren't for how uncomfortable it is to wear, I would have kept it and given it 4 stars. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/38347045-yono-fertility-monitor-bold-violet](https://www.desertcart.vn/products/38347045-yono-fertility-monitor-bold-violet) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-19*