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.
Twist-O-Flex Band for the Fitbit Charge 3 & Charge 4
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|
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 speidel.com for additional link kits.
This Twist-O-Flex band is compatible with your Fitbit Charge 3 and Charge 4.
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.
Choose your finish:
Style available in silver and black.
- Free US Shipping on Orders $75+
- One Year Limited Warranty
- Free 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.
Love my FitBit but hate the rubber strap. The Twist-O-Flex band made the smart watch usable. I am hoping this will also fit FitBit Charge 4 when I upgrade.
Would have been a 5 if I had received instructions on how to remove a link.
The twist o flex band is still the best band for any application. The quality, fit and finish are first rate. This band is on my Fitbit charge 3. I will be ordering more bands for my good watches.
I had ordered a Twist O Flex for my Fitbit Alta so when I upgraded to the Fitbit Charge 3 I ordered a Twist O Flex for it. The band fits well, east to attach to the Fitbit Charge 3. I give a 5 Star and I have recommended to my friends!
I gave my 89 year old mother a Fitbit to encourage her to keep moving. Unfortunately, her fingers could no longer buckle the bank and other options I tried didn’t work either. She really wanted something she could just slip on. I tried several times to find something appropriate but the last time I ran a search Speidel popped up! I remembered the old Twist-o-Flex commercials and thought why not give it a try. So I ordered a small and a medium. I kept the medium for myself and sent Mom the small - perfect! They look sleek and much more professional for me than Fitbit’s plastic bands. And my Mom loves hers, too. I only wish I’d found them earlier!