---
product_id: 741089143
title: "2.0 Medical Device for Cycle and Ovulation Monitoring | Indicates Fertile and Non-Fertile Days - 99.4% Accuracy | Also for Pregnancy Planning"
brand: "daysy"
price: "€ 1165.78"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.hr/products/741089143-2-0-medical-device-for-cycle-and-ovulation-monitoring-indicates
store_origin: HR
region: Croatia
---

# 99.4% accuracy algorithm Bluetooth sync with app Rechargeable Micro-USB battery 2.0 Medical Device for Cycle and Ovulation Monitoring | Indicates Fertile and Non-Fertile Days - 99.4% Accuracy | Also for Pregnancy Planning

**Brand:** daysy
**Price:** € 1165.78
**Availability:** ✅ In Stock

## Summary

> 🌿 Own Your Cycle, Own Your Power

## Quick Answers

- **What is this?** 2.0 Medical Device for Cycle and Ovulation Monitoring | Indicates Fertile and Non-Fertile Days - 99.4% Accuracy | Also for Pregnancy Planning by daysy
- **How much does it cost?** € 1165.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/741089143-2-0-medical-device-for-cycle-and-ovulation-monitoring-indicates)

## Best For

- daysy enthusiasts

## Why This Product

- Trusted daysy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Smart Sync:** Bluetooth-enabled data transfer to your phone for real-time cycle insights and personalized health tracking.
- • **Effortless Daily Use:** Quick 30-60 second basal temperature measurement with intuitive color-coded fertility status.
- • **Eco-Friendly Wellness:** Natural family planning that reduces reliance on synthetic hormones, protecting both your body and the planet.
- • **Precision You Can Trust:** Leverages 35+ years of research and 5 million cycles for 99.4% accurate fertile day predictions.
- • **Empowered Decision-Making:** Comprehensive app analytics let you share cycle data with partners or healthcare providers for informed planning.

## Overview

Daysy 2.0 is a cutting-edge medical device designed for precise cycle and ovulation monitoring with 99.4% accuracy. Featuring Bluetooth connectivity and a rechargeable battery, it syncs seamlessly with the DaysyDay app to provide detailed fertility insights. Backed by decades of research and millions of cycles, Daysy empowers natural family planning while promoting eco-conscious health choices.

## Description

Daysy It is more than just a device to monitor your fertility. It is a trusted companion that helps you to better know your body and its needs. Thanks to its advanced technology and ease of use, Daysy allows you to take care of yourself easily and effectively. With Daysy, you not only monitor your menstrual cycle, but also learn to listen to the signals your body sends you every day. It's like having an experienced friend always by your side, ready to advise and support you at all times. With Daysy, you not only gain a greater awareness of your body, but also a greater confidence in yourself and your abilities. With Daysy, every day is a new journey to discover yourself and your well-being.

Review: This has been such a game changer for me and my partner. I’ve been using this for 1 year and I will never go back to Birth Control. I was on the implant for 6 years before finally making the switch. We have had no accidents and I get lots of green days now. When you get the Daysy, it takes time for it to learn your cycle, you must be prepared to be patient. There are reviews on here moaning because they’ve only waited 3 months, it took mine about 8 months before I was consistently getting lots and lots of green days. From months 3-6 I was getting about 5 green days a month (including period). Now I’m sat at 15 green days a month. I’ve also seen people recommend Natural Cycles as a replacement for this. The Daysy is far superior. My sister in law was on Natural Cycles while I was on Daysy, she just recently welcomed a baby into the family two months ago. Patience is key with this device to reap the rewards. This isn’t a ‘quick fix’. You are potentially undoing, years of birth control / hormone damage. Your body needs time to sort itself out and you will get a lot of yellow / red days during this time period. Yes it’s frustrating but my god it’s so worth it.
Review: J'utilise Daysy depuis 9 mois maintenant (et je le recommande à toutes les filles de mon entourage). Mon conjoint et moi sommes HYYYYPER satisfait de son efficacité à nous guider quant à notre moyen de contraception naturel. Grâce à Daysy, non-seulement moi, mais mon conjoint connaît également mon cycle menstruel par coeur ainsi que chacune de ses phases (et symptômes rattachés à celles-ci). La batterie dure une éternité avant de devoir le charger, ce qui nous permet de partir en voyage et de l'utiliser avec facilité (et hop en dessous de l'oreiller, première action au réveil). Pour mon couple, il s'agit d'un RÉEL investissement. J'ai également hâte de l'essayer à la conception de notre premier bébé, afin de suivre le meilleur moment pour concevoir. Je ne comprends pas pourquoi il ne se vend plus sur desertcart, je l'adore.

## Features

- ADVANCED TECHNOLOGY: Intuitive and simple operation, Bluetooth technology for transferring data to mobile phones and tablets, rechargeable battery via Micro-USB cable, Daysy2.0 is the ideal solution for those looking for convenience and efficiency.
- PRECISE AND RELIABLE: Based on your data, as well as 5 million menstrual cycles and over 35 years of research, Daysy algorithm calculates non-fertile days with 99.4% accuracy.
- EASY TO USE: Measure your basal temperature under the tongue in just 30-60 seconds and in real time view your daily fertility status - fertile or non-fertile - via a simple colour system.
- NATURAL FAMILY PLANNING: Daysy, is a microcomputer equipped with software that uses an algorithm that can learn and adapt to your cycle, indicating you precisely when you are NOT fertile and when you are. So you can decide whether to avoid or seek pregnancy in a targeted manner, while also monitoring ovulation regularity and hormonal balance.
- APP: The "DaysyDay" app allows you to enter more information and presents you with graphs, averages, details and summaries, giving you an in-depth overview of your cycles. You can share this information, or part of it, with your partner, doctor or our expert team. Monitoring your entire hormone cycle has never been easier.
- ECO-SUSTAINABLE: The precision and reliability of this device provide an environmentally friendly alternative to the daily intake of synthetic hormones, which by eliminating through body fluids, enter the water cycle with a devastating impact on the environment and the ecosystem. This gives you two benefits: the protection of your well-being and that of the environment in which we all live.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01HNCPTWQ |
| Additional Features | High Accuracy |
| Age Range Description | Adult |
| Best Sellers Rank | #52,461 in Health ( See Top 100 in Health ) #108 in Family Planning & Birth Control Products |
| Brand Name | Daysy |
| Color | White |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.3 4.3 out of 5 stars (311) |
| Display Type | LCD |
| Included Components | Battery |
| Indoor Outdoor Usage | Indoor |
| Item Weight | 0.04 Kilograms |
| Manufacturer | Valley Electronics AG |
| Model Name | 7629999054073 |
| Number of Batteries | 1 CR2032 batteries required. (included) |
| Outer Material | Plastic |
| Part Number | 7629999054073 |
| Power Source | Battery Powered |
| Response Time | 60 seconds |
| Specification Met | CE |
| Unit Count | 1.0 Count |

## Product Details

- **Age range (description):** Adult
- **Brand:** Daysy
- **Colour:** White
- **Included components:** Battery
- **Special features:** High Accuracy

## Images

![2.0 Medical Device for Cycle and Ovulation Monitoring | Indicates Fertile and Non-Fertile Days - 99.4% Accuracy | Also for Pregnancy Planning - Image 1](https://m.media-amazon.com/images/I/61gEPwPs6WL.jpg)

## Questions & Answers

**Q: Is Daysy reliable and safe?**
A: Yes, Daysy is a medical device with an accuracy of 99,4%

**Q: How soon can I trust Daysy's results?**
A: You can trust Daysy's results starting directly from day one.

**Q: Who can use Daysy?**
A: Daysy is for anyone who menstruates, whether you work shifts, are a mom, want to conceive, wish to prevent pregnancy, or are dealing with cycle-related issues like PCOS or endometriosis.

**Q: How long does the temperature measurement take?**
A: The measurement takes just about 60 seconds a day. Simply take your basal temperature each morning after waking up to monitor your cycle.

**Q: Do I always have to measure my basal temperature at the same time?**
A: No. What’s important is that you’ve rested for at least one hour and take your temperature immediately after waking, before getting up or moving around.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***E on 26 August 2023*

This has been such a game changer for me and my partner. I’ve been using this for 1 year and I will never go back to Birth Control. I was on the implant for 6 years before finally making the switch. We have had no accidents and I get lots of green days now. When you get the Daysy, it takes time for it to learn your cycle, you must be prepared to be patient. There are reviews on here moaning because they’ve only waited 3 months, it took mine about 8 months before I was consistently getting lots and lots of green days. From months 3-6 I was getting about 5 green days a month (including period). Now I’m sat at 15 green days a month. I’ve also seen people recommend Natural Cycles as a replacement for this. The Daysy is far superior. My sister in law was on Natural Cycles while I was on Daysy, she just recently welcomed a baby into the family two months ago. Patience is key with this device to reap the rewards. This isn’t a ‘quick fix’. You are potentially undoing, years of birth control / hormone damage. Your body needs time to sort itself out and you will get a lot of yellow / red days during this time period. Yes it’s frustrating but my god it’s so worth it.

### ⭐⭐⭐⭐⭐ Review
*by J***Y on 19 March 2026*

J'utilise Daysy depuis 9 mois maintenant (et je le recommande à toutes les filles de mon entourage). Mon conjoint et moi sommes HYYYYPER satisfait de son efficacité à nous guider quant à notre moyen de contraception naturel. Grâce à Daysy, non-seulement moi, mais mon conjoint connaît également mon cycle menstruel par coeur ainsi que chacune de ses phases (et symptômes rattachés à celles-ci). La batterie dure une éternité avant de devoir le charger, ce qui nous permet de partir en voyage et de l'utiliser avec facilité (et hop en dessous de l'oreiller, première action au réveil). Pour mon couple, il s'agit d'un RÉEL investissement. J'ai également hâte de l'essayer à la conception de notre premier bébé, afin de suivre le meilleur moment pour concevoir. Je ne comprends pas pourquoi il ne se vend plus sur Amazon, je l'adore.

### ⭐ Review
*by D***L on 15 February 2025*

La verdad lo compre hace más de 8 meses por mi deseo de quedar en embarazo y no había puesto reseña esperando y mirando todas las opciones por si era solo a mi que no me funcionaba, hasta lo envié a Alemania y lo revisaron, dicen que funciona perfectamente pero que soy yo quien no sabe utilizarlo...como si abriendo la boca y meterse un medidor fuece de mucha ciencia, en fin por más que pedí devolución de dinero, no me lo dan porque a ellos si les funciona y claro no pierden...así que 300€ tirados a la basura...es más tengo aplicación de calendario menstrual gratuito en mi móvil y funciona mejor, aparte que aunque esté Daysi no me mide la temperatura, si me dice los días en que me va a llegar la regla y los días fértiles y los días que no, entonces para que tenerlo? Si me da la misma información que mi aplicación gratuita en móvil?no es confiable, porque loa información que da no es relevante y no me da seguridad que me ayudara a algo

## Frequently Bought Together

- Daysy Fertility Tracker – Natural Hormone-Free Ovulation Monitor & Fertility Awareness Device – Smart BBT Thermometer with App for Cycle Tracking, Conception, or Pregnancy Planning – FSA/HSA Eligible
- Taking Charge of Your Fertility, 20th Anniversary Edition: The Definitive Guide to Natural Birth Control, Pregnancy Achievement, and Reproductive Health

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-23*