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Join the Vire 100
Continuous body temperature

Your temperature, in harmony

Discover your rhythm. Align your actions. Feel better.

Two Vire participants through pregnancy, over an illustrative research model.
Body temperature · °C
MeasuredFilled inIllustrative model
Prenatal
Postnatal
Viewing
About this chart

What am I looking at?

Vire data from two people, laid over a research model.

What each line is
Measured
Vire Clip on the skin every 5 minutes, converted to a core-temperature estimate. Marked by the bold mint rule under the chart.
Filled in
No Clip data. Rebuilt from the same person’s recorded days. Similar in rhythm, never copied.
Illustrative
The research model. Simulated, for context.
The research model
Daily rhythm
Baker 2020 [3]
+
Cycle rise
Baker 2020 [3]
+
Pregnancy trend
Hartgill 2011 [1] · Keeler Bruce 2024 [2]
=
Model
Numerical

Each layer follows a published group average. The fine 5-minute texture is generated so the line reads at every zoom. It is not data. The perimenopause view uses different studies.

How the two are compared
Level aligned, shape kept
Each person’s average is moved onto the model’s baseline. Compare changes, not absolute degrees.
Read with care
Calibration steps
The estimate recalibrates to each wearer. Some data here predates the app’s smoothing, so small jumps can show.
Seasons and years
Built for rhythms within a week. Over months, calibration can hide or add slow drift, so treat seasonal gaps as indicative. Night-time peaks track long-term baseline better.
Whose data
Participant 1
Regular cycles, measured Nov 2025 to Aug 2026, shown a year earlier to lead in. From 29 Aug 2026, real dates.
Participant 2
One pregnancy, measured Nov 2025 to Jul 2026. Birth 5 Jul 2026.
References
  1. 1Hartgill TW, Bergersen TK, Pirhonen J. Core body temperature and the thermoneutral zone: a longitudinal study of normal human pregnancy. Acta Physiol 2011;201(4):467–474. doi:10.1111/j.1748-1716.2010.02228.x
  2. 2Keeler Bruce L, González D, Dasgupta S, Smarr BL. Biometrics of complete human pregnancy recorded by wearable devices. npj Digit Med 2024;7:207. doi:10.1038/s41746-024-01183-9
  3. 3Baker FC, Siboza F, Fuller A. Temperature regulation in women: effects of the menstrual cycle. Temperature 2020;7(3):226–262. doi:10.1080/23328940.2020.1735927
Daily

Find your daily rhythm.

See how your temperature rises and falls across the day, and use it to better understand your body.

Sleep
timing
Activity
timing
Meal
timing
Monthly

See your cycle take shape.

Follow temperature patterns across your menstrual cycle and connect them with how you feel.

Menstrual
cycle
Mood
Symptoms
Long term

Notice when your baseline changes.

See how your patterns shift over time, including changes around:

Pregnancy
Postnatal
recovery
Cycles
return
Scroll to zoom out through time
Continuous body temperature

Your temperature, in harmony

Discover your rhythm. Align your actions. Feel better.

One Vire participant into perimenopause, over an illustrative research model.
Body temperature · °C
MeasuredFilled inIllustrative model
Night sweat
Hot flash
Viewing
About this chart

What am I looking at?

Vire data from one person, laid over a research model.

What each line is
Measured
Vire Clip on the skin every 5 minutes, converted to a core-temperature estimate. Marked by the bold mint rule under the chart.
Filled in
No Clip data. Rebuilt from the same person’s recorded days. Similar in rhythm, never copied.
Illustrative
The research model. Simulated, for context.
The research model
Daily rhythm
Baker 2020 [3]
+
Cycle rise
Baker 2020 [3]
+
Flashes, night sweats
Freedman 1995 [1] · Avis 2015 [2]
=
Model
Numerical

Each layer follows a published group average. The fine 5-minute texture is generated so the line reads at every zoom. It is not data. The pregnancy view uses different studies.

How the two are compared
Level aligned, shape kept
Each person’s average is moved onto the model’s baseline. Compare changes, not absolute degrees.
Read with care
Calibration steps
The estimate recalibrates to each wearer. Some data here predates the app’s smoothing, so small jumps can show.
Seasons and years
Built for rhythms within a week. Over months, calibration can hide or add slow drift, so treat seasonal gaps as indicative. Night-time peaks track long-term baseline better.
Whose data
Participant 1
Regular cycles, measured Nov 2025 to Oct 2026 and placed in 2017–18. Every other year is filled in from those cycles.
References
  1. 1Freedman RR, Norton D, Woodward S, Cornélissen G. Core body temperature and circadian rhythm of hot flashes in menopausal women. J Clin Endocrinol Metab 1995;80(8):2354–2358. doi:10.1210/jcem.80.8.7629229
  2. 2Avis NE, Crawford SL, Greendale G, et al. Duration of menopausal vasomotor symptoms over the menopause transition (SWAN). JAMA Intern Med 2015;175(4):531–539. doi:10.1001/jamainternmed.2014.8063
  3. 3Baker FC, Siboza F, Fuller A. Temperature regulation in women: effects of the menstrual cycle. Temperature 2020;7(3):226–262. doi:10.1080/23328940.2020.1735927
Daily

Find your daily rhythm.

See how your temperature rises and falls across the day, and use it to better understand your body.

Sleep
timing
Activity
timing
Meal
timing
Monthly

See your cycle take shape.

Follow temperature patterns across your menstrual cycle and connect them with how you feel.

Menstrual
cycle
Mood
Symptoms
Long term

Notice when your baseline changes.

See how your patterns shift over time, including changes around:

Hot
flashes
Night
sweats
Peri­menopause
Scroll to zoom out through time

The Vire 100

See your own rhythm take shape

Get one of the 100 Vire Clips and help shape a new kind of women’s health wearable.