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Armband Size Guide

Upper arm circumference

How to Measure

  1. 1Wrap a flexible tape measure around your upper arm
  2. 2Measure at the fullest part (mid-bicep)
  3. 3Note in inches or centimeters

Size chart

Size Inches cm
Standard Armband 8.5″ – 15.5″ 21.5 – 39 cm
Extra-Long Armband 12.5″ – 18.5″ 31.5 – 47 cm
Both armbands fit most body types.
Additional bra extenders can be purchased at any store if larger sizing is required.

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Who is behind Tempdrop?

By Tempdrop team

Tempdrop is a startup based in Israel.

What started as an ambitious crowdfunding campaign back in 2014 has since grown into the world’s first wearable BBT sensor, advancing women’s reproductive health throughout every stage. 

At the end of 2020, we launched Tempdrop’s in-built charting app as an effortless solution to record your BBT and learn key cycle insights.

We believe every woman should be empowered and equipped with the knowledge to take control of their body. That’s where Tempdrop steps in to provide clear, science-based technology to help you better track your cycle.

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