Choose the right device for you
Natural Cycles is powered by your body temperature, so you’ll need a compatible measuring device. Browse this page to find the best fit for you.
One app, three ways to measure
Natural Cycles has been clinically validated for use with all three measuring devices, so focus on finding the best fit for your routine and preferences.
NC° Band
No screen, no flashes, no beeps — just comfort-first measuring that’s cost-friendly.
Oura Ring
Our most popular integration! This sleek smart ring makes measuring effortless.
Discover NC° + OuraApple Watch
Seamlessly sync your Apple Watch with NC° to track your fertility with ease.
Discover NC° + Apple WatchCompare Devices
Where to measure
When to measure
Automatic sync
Special pricing
NC° Band
Wrist
Overnight
Yes
Free with Annual Plan
Oura Ring
Finger
Overnight
Yes
Exclusive offer
Apple Watch
Wrist
Overnight
Yes
None
Your temperature & your cycle
After ovulation, your body temperature naturally rises as hormone levels change.
