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SKU: 001479222

Twist-O-Flex™ Band for the Fitbit Charge 3 & Charge 4


Effortless Style Meets Sport

Back in 1959, the original Twist-O-Flex™ revolutionized watch band design. Continuing to flourish in the industry, we are proud to say that this style is available to compliment your beloved Fitbit. Our watch bands effortlessly combine style with sport, taking your Fitbit to a whole new level of fashion and comfort.

Reviews Size Guide ↗

Twist-O-Flex™ Band for the Fitbit Charge 3 & Charge 4

Size Guide

Fitbit Charge 3 Band Sizes

Band Size Wrist Size (in inches) Wrist Size (in mm's)
XS 5.6" – 5.8" 143 – 147 mm
S 6.2" – 6.4" 158 – 162 mm
M 6.8" – 7.0"

172 – 176 mm

7.6" – 7.8"

193 – 197 mm

8.8" – 9.0"
223 – 227 mm

View our Band Length Sizing Guide

If you are on the line between sizes, we recommend choosing the larger size as you can remove links with the use of our link removal guide. You can also visit a local authorized Speidel jeweler and have it sized for you.

If you need a size that is larger than our current offerings, additional links can be added. Visit for additional link kits.

  • Compatibility:
    This Twist-O-Flex™ band is compatible with your Fitbit Charge 3 and Charge 4.
  • Materials:
    The stainless steel construction of this band boasts impressive strength and water resistance. It’s the perfect companion to make your Fitbit work for you outside the gym.
  • Easy on, easy off:
    There’s no need to struggle with a clasp or buckle when you choose the Twist-O-Flex™ band. It features a large expansion range of up to 5” inches, allowing you to easily put on and take off as needed.

  • Years Of Quality

    Over 118 Years Of Quality Craftsmanship

  • One Year Limited Warranty

  • 30 Day Return Policy

  • Built for the long haul
    With its stainless steel construction, the Twist-O-Flex™ band is built to carry you day in and day out.
  • Fit for all
    The Twist-O-Flex™ large expansion range is sure to provide the perfect fit with its simple, adjustable band length and easy on, easy off construction.
  • Created for comfort
    Our patented Twist-O-Flex™ design was built to maximize comfort while creating a sleek, easy-to-wear design.
Twist-O-Flex™ Band for the Fitbit Charge 3 & Charge 4 feat_1

Customer Reviews

Based on 45 reviews
Curt Jones
Great band

I didn’t like wearing my Fitbit Charge 4 because the silicone band irritated my skin. Since purchasing the Speidel Twist O Flex band, I have been able to wear my Fitbit without irritation. It also looks great and is quick and easy to use!

Sherry Ayala
Twist-O-Flex Band for the Charge 3& Charge 4 From Speiidel

I received my new band within a few days and love it. It fits perfect.I ordered from Kate in order department. She was wonderful. I will order again soon. Sherry A.

Cheryl Slaby

The band was a gift and he loved it!!
Great quality, ordering was easy, and delivery was fast.

Austin Palacios
Strong, Sleek, Durable, Classy

I've been a watch guy for a long time. Now the FitBit Charge 3 fills the roll with fit and function. I was apprehensive about a flex band because I had been burned in the past. After doing my research I chose the Speidel and was more than happy with the performance. I have fairly hairy arms and it does not tug at my hair or pinch my skin. It seems the band is aging at the same pace as the FitBit so the band looks like it is in it for the long run. I am jazzed about my purchase.

Lois Mossa
2nd band

I love the new band I purchased for my new Fitbit.


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