Understanding your menstrual cycle is a window into your overall well-being, energy, mood, and reproductive health. That’s why Ultrahuman developed the Cycle and Ovulation PowerPlug.
Available to all Ultrahuman Ring AIR users at no extra cost, the Ultrahuman Cycle and Ovulation PowerPlug uses unique biomarkers, such as skin temperature, HRV and RHR to calculate your cycle phases. It will predict a 7-day fertile window and pinpoint ovulation day with precision.
Fertility tracking should be personalized, precise, and seamless. The Cycle and Ovulation PowerPlug is designed to provide real-time, accurate predictions of your fertile window based on your unique bodily rhythms.
Whether you’re trying to conceive or simply keeping track of your cycle, it empowers you to make informed choices.
Read more: The four stages of the menstrual cycle
Highlights
- The Ultrahuman Cycle and Ovulation PowerPlug offers accurate ovulation prediction.
- It helps you take control of your reproductive health and boosts your chances of getting pregnant.
- It works without a subscription and is available to all Ultrahuman Ring AIR users.
Key Features
- The Ultrahuman Cycle and Ovulation PowerPlug has two modes: Conception and Cycle Tracking.
- Conception mode provides predictions for your fertile window and ovulation day based on your biomarkers such as skin temperature, HRV and RHR.
- Cycle Tracking mode offers period predictions and insights for each of the four menstrual cycle phases.
Cycle Tracking mode
The Cycle and Ovulation PowerPlug makes tracking your period simpler and more accurate than ever.
Simply log your period start and end dates, and the algorithm factors in natural variations in cycle length. Combining past cycle data with real-time biomarker information ensures more accurate predictions of when your next period will start and when your fertile window will open.
Cycle and Ovulation tracks skin temperature (different from basal body temperature or BBT), which helps account for natural fluctuations throughout the day. BBT requires a morning manual measurement, while skin temperature boosts reliability and accuracy with continuous, automated tracking focused on finding meaningful patterns over time. The algorithm employs a multi-biomarker approach that includes resting heart rate (RHR) and heart rate variability (HRV) data for a more complete picture of your cycle.
Accurately tracking these biomarkers can reveal clues about your stress levels or potential hormonal imbalances. Irregularities in some biomarkers may even indicate conditions like PCOS/PCOD. By catching these signs early, you can seek timely medical advice and take steps to address any underlying issues before they affect your fertility or overall health.
Period logging
The Cycle and Ovulation PowerPlug lets you mark your periods, view predictions, and access cycle data all in one place.
You can also look back at your cycle history. Having months of cycle data in one place helps you spot trends in your cycle behavior, which is valuable information to discuss with your doctor.
If you have irregular cycles, the PowerPlug offers dynamic tracking that adjusts predictions based on your actual cycle data rather than relying on fixed assumptions.
How Period Prediction Works
The Cycle and Ovulation PowerPlug continuously analyzes your cycle history along with key biomarkers that track hormonal and physiological changes throughout your menstrual cycle. By monitoring data points like skin temperature, resting heart rate (RHR), and heart rate variability (HRV), it creates your unique fertility profile.
These biomarkers follow a natural rhythm, which the algorithm uses to make precise predictions. For instance, you’re likely to experience higher HRV, lower RHR and skin temperature, increased energy levels, and a better mood during the follicular phase—and the quite opposite during the luteal phase.
How your biomarkers behave throughout the cycle
Follicular Phase
- Skin Temperature: Remains stable and normal, as your body is in a more restful, balanced state.
- Heart Rate Variability (HRV): Higher due to estrogen’s parasympathetic effects, indicating relaxation and recovery.
- Resting Heart Rate (RHR): Lower, reflecting your body’s relaxed and restorative state.
Ovulation Phase
- Skin Temperature: Rises around ovulation day, helping pinpoint the exact timing of the Luteinizing Hormone surge.
- Heart Rate Variability (HRV): Shows a moderate dip due to a shift toward sympathetic activity.
- Resting Heart Rate (RHR): May slightly rise, reflecting increased alertness.
Luteal Phase
- Skin Temperature: Higher, due to the thermogenic effect of progesterone, which raises body temperature in preparation for a potential pregnancy.
- Heart Rate Variability (HRV): Lower, indicating a shift toward a more stressed, activated state due to progesterone.
- Resting Heart Rate (RHR): Higher, reflecting increased metabolic demand.
Together, these dynamic biomarkers offer a phase-by-phase view and insights for your menstrual cycle, improving prediction accuracy and personalization. The PowerPlug’s multi-biomarker approach even works if you have varying cycle lengths, though with slightly less accuracy compared to regular cycles.
As the PowerPlug gathers more data, it continuously refines its predictions. The insights you receive are based on real-time data unique to you—not generalized averages or assumptions.
In short: Your Cycle and Ovulation Tracking gets more accurate over time.
How the accuracy compares
In a recent Ultrahuman study into the accuracy of the Cycle and Ovulation PowerPlug, tested against traditional fertility tracking methods, such as the calendar method and urine-based ovulation prediction kits (OPKs).
Ultrahuman analyzed 4,055 cycles, and the validation of the algorithm was carried out among a group of 22 female volunteers.
Results showed that the algorithm predicted ovulation with a median difference of just 1 day compared to OPKs, and a median difference of 2 days compared to the traditional calendar method in women with regular cycles.
Conception mode
Knowing exactly when ovulation occurs is key if you’re trying to conceive.
As mentioned, the Cycle and Ovulation PowerPlug accurately pinpoints your ovulation day within a 7-day fertile window using skin temperature, resting heart rate, and heart rate variability data. This includes the five days leading up to ovulation, the day of ovulation itself, and the day after.
By personalizing predictions based on your unique cycle, the PowerPlug helps you focus on the best days for conception—boosting your chances of success.
The Ultrahuman algorithm can also forecast your fertile windows up to three months in advance by analyzing past cycle lengths and biomarker data, giving you a clearer, more reliable window to plan for pregnancy.
Smart app integrations
The primary source of data comes from the information you log in the Ultrahuman App.
However, you can also choose to sync and integrate your cycle data from third-party apps like Clue, Apple Health, and Health Connect. The option to integrate with other apps becomes available when you enable the PowerPlug.
The Cycle and Ovulation PowerPlug imports your period history from these apps and then uses Ultrahuman’s own algorithm to calculate phases and make predictions going forward.
Conclusion
The Cycle and Ovulation PowerPlug provides real-time, accurate, and personalized insights into your fertile window and menstrual cycle, empowering you to make informed decisions about your health. It eliminates the hassle of juggling multiple apps and cumbersome tracking methods, making ovulation tracking seamless and effortless.
Whether you’re trying to conceive, monitoring your menstrual health, or simply looking to understand your body better, the PowerPlug delivers reliable, data-driven fertility and cycle predictions. Its algorithm continuously learns and adapts to your unique cycle, making it an invaluable tool for tracking fertility and gaining deeper insights into your overall well-being.
Available globally without a subscription fee, the Cycle and Ovulation PowerPlug gives you access to the insights you need to take charge of your reproductive health. Through precise biomarker tracking, Ultrahuman helps you navigate your menstrual health journey with confidence and clarity.
