Ovusense vs Tempdrop: Which Fertility Monitor Is Right for You?

By Caroline Ikiugu
Edited by Kelli Harris

Published December 14, 2021.

Our team independently researches, compares, and recommends the best products for women's health. We publish unbiased reports and are not influenced by payments we may receive from advertising partners.

Ovusense vs Tempdrop: Which Fertility Monitor Is Right for You? main image

Fertility monitors make life easier for women trying to conceive by helping them track their ovulation and fertility phases.

Here we compare two top fertility trackers: Tempdrop and OvuSense.

Ovusense vs Tempdrop

Feature Comparison

This Tempdrop and OvuSense comparison is aimed at making it a bit easier for you to choose.

OvuSense logo


Tempdrop logo

Temp Drop

Missed ovulation notification

Will track your cycle and notify you if you've missed your ovulation

Cycle and fertility tracking

Tracks your cycle and predicts your fertile window

Android and IOS compatible app

Compatible with most devices

FDA registered

Carrie the FDA stamp of approval

FSA/HSA qualified

Eligible expenses for FSA and HSA

Useful for irregular cycles or PCOS

Works regardless of irregular periods or PCOS

Core Body Temperature tracking

Monitors changes in your core body temperature

Basal Body Temperature tracking

Monitors changes in your basal body temperature

Predicts ovulation day

Can predict the day ovulation is likely to be taking place

Tempdrop: The Basics

Tempdrop is a wearable BBT thermometer that makes it easy for you to keep track of your fertility and ovulation by making it easy to record your basal body temperature (BBT). The Tempdrop armband is worn on the upper arm when you go to bed and takes your temperature readings throughout the night, saving you from having to wake up early to record your temperature.

OvuSense: The Basics

OvuSense is a fertility monitoring device that helps you track your cycle pattern. It notifies you about your ovulation and your fertile window, helping you identify the best time to try to conceive during each cycle. There are two types of OvuSense Sensors:

OvuFirst Sensor This is ideal for those with regular 24-35 day menstrual cycles and is worn either in the underarm or on the wrist while sleeping.

OvuCore Sensor This vaginal sensor is ideal for those with irregular menstrual cycles or PCOS and is inserted into the vagina to measure the core body temperature.

Using Tempdrop vs OvuSense

Both devices work as you sleep, and while the Tempdrop bracelet is worn on the upper arm before going to bed, the OvuSense OvuCore sensor is inserted into the vagina, like a tampon. Some women have reported that OvuCore may slip out when using the toilet. Additionally, it has to be removed and cleaned carefully before logging any readings the following morning. You also can’t use the OvuCore sensor when you’re spotting or on your period. So when it comes to ease of use, Tempdrop wins it because it’s hassle-free.

The Accuracy of Tempdrop vs OvuSense

Tempdrop works by measuring your basal body temperature, while OvuSense measures your core body temperature. This means that OvuSense bypasses any issues associated with the luteinizing hormone, making it more accurate in monitoring your ovulation. Additionally, it also notifies you of a missed ovulation in a given cycle, giving it an accuracy advantage over Tempdrop.

Pricing Comparison



Temp Drop

OvuFirst Wearable Fertility Monitor - Starter Pack


OvuFirst Starter Pack with 12 month OvuSense Standard Subscription


30-day OvuSense Standard Subscription (Recurring)


Tempdrop Fertility Monitor +3 months free premium charting app features


Tempdrop vs OvuSense: Which Product Is Better?

Both Tempdrop and OvuSense provide an easy way to track your fertility and cycle, and they both cater to those with PCOS or irregular cycles.

However, using Tempdrop for birth control is easier since it simply involves wearing the armband when going to sleep and syncing it with the app in the morning. Although using the OvuSense OvuCore sensor involves inserting the sensor into the vagina, making it uncomfortable for some, it does provide more accurate information. Also, unlike Tempdrop, you can’t use OvuCore when you’re on your period. This may make it more of a hassle to use.

Overall, deciding which of these fertility monitors is better comes down to personal preference.