Entropy E8 Galaxy S23 Plus Armband

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Strap Size Bundle

The Sporteer Entropy E8 Running Armband fits the Galaxy S23+ with protective cases*.  There is no need to remove your case before every workout.

The Entropy E8 Armband features removable armband straps and soft memory foam backing to provide a comfortable, water-resistant, sweat-proof and secure fit on any arm size and ensures your S23+ won't slip down your arm. Two interchangeable strap sizes are included. 

Entropy armbands can be worn directly on the arm or over clothing, making Entropy the perfect armband for all seasons.

*The Entropy Armband for Galaxy S23+ fits cases up to 165mm X 90mm.

If your case is larger than 165 mm X 90 mm, we recommend the Kinetic K1 Running Belt.

Please contact Sporteer Customer Service if you have questions about your particular case size or arm size.


  • Removable straps provide a custom fit on bare arms or over clothing
  • Soft memory foam backing for a secure, comfortable and sweat-proof fit
  • Edge™ touch screen for full screen visibility and functionality
  • Interior moisture barrier keeps sweat out and your phone dry
  • Locking zippers eliminate annoying rattling during your workout
  • Reflective trim and strap tabs for safe running at night
  • Internal pockets and enough space for cash, cards, keys and ID

TWO strap sizes included:

S/M Bundle:   Includes one Small Strap and One Medium Strap

M/L Bundle:   Includes one Medium Strap and One Large Strap

Strap Size           Arm Size (upper arm circumference)

   Small                          8 - 11 inches (20 - 28 cm)

 Medium                     10 - 14 inches (25 - 36 cm)

  Large                        13 - 18 inches (33 - 46 cm)

Extender                         + 4 inches (10 cm)