What Size Should I Get?

Standard Band Sizing

With the standard BACtrack Skyn band, there are two important measurements: the width of your hand and the width of your wrist. You need to make sure the band is large enough to fit over your hand, but can also wrap snugly around your wrist. 

Most females will fit into the S/M band and most males will fit into M/L band. 95% of people will fit in S/M or M/L, but if you have very large hands, get the XL band. 

There is some overlap between band sizes, so if you are unsure, go with the larger size. See below for specific hand and wrist measurements.

Apple Watch Band Sizing

These bands correspond to the size of the Apple Watch face that you have. If you have a 38mm, 40mm or 41mm Apple Watch, get the Small band. If you have a 42mm, 44mm or 45mm Apple Watch, get the Large band.

How to Measure Your Hand and Wrist

  1. With your palm facing down, tuck your thumb under your hand
  2. Using a ruler, measure the across widest part of your hand and note the measurement
  3. Using a ruler, measure the width of your wrist and note the measurement

Women's hand measurement

Men's hand measurement

XS Band (special order only)

  • Hand Width: < 80mm (< 3in)
  • Wrist Width: < 50mm (< 2in)

S/M Band

  • Hand Width: 60-90mm (~2.5-3.5in)
  • Wrist Width: 50-60mm (~2-2.5in)

M/L Band

  • Hand Width:75-110mm (~3-4.5in)
  • Wrist Width: 55-75mm (~2-3in)

XL Band

  • Hand Width: > 110mm (> 4.5in)
  • Wrist Width: > 75mm (> 3in)
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