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***YOUR ORDER WILL BE SHIPPED PROMPTLY. PLEASE UNDERSTAND WE CANNOT GIVE REFUNDS ON SHIPPING IF YOUR ITEM ARRIVES LATER THAN EXPECTED DUE TO THE POSTAL SYSTEMS SERVICE.*** We ship daily from our Michigan warehouse Monday through Friday and most Saturdays via the US Postal Service. PLEASE NOTE - All shipping times below are estimated delivery times by the USPS and are not guaranteed.

$3.95 - Standard shipping usually takes 5-7 business days.

$9.95 - Priority shipping usually takes 4-6 business days, but please note this is not guaranteed by the Post Office.

$24.95 - Express mail shipping takes 2-3 business days when the order is received M-F before 3PM Eastern time.

Gymboss Charge

Availability: In stock
As low as USD $23.95

Price as configured: USD $23.95

Quick Overview

The Gymboss Charge is our most durable timer and was designed to be used under the most demanding conditions. While it is the same size and offers all the functions as our classic Gymboss, it is also weatherproof allowing for use in heavy continuous rain as well as extreme sweat and humid conditions. A backlit LCD makes it easy to see in any light exposure. It also offers the loudest beep alarm of any of our timers. Finally, the Charge has a built in rechargeable battery that will last for months on a single charge. *NOTE - ALL CHARGE TIMERS SHIP FROM OUR USA OFFICE. ANY OTHER ITEMS IN YOUR ORDER WILL SHIP FROM THE LOCATION SPECIFIED ON THE SHIPPING TAB HERE ON THE WEBSITE*


  • Weatherproof - making this ideal for outdoor actives
  • 1 or 2 intervals - 2 seconds to 99 minutes
  • Repeat up to 99 times
  • Beep and/or Vibrate alarm
  • Very loud beep – loudest beep alarm of all models
  • Alarm duration 1, 2, 5, or 9 seconds
  • Stopwatch function
  • Clock function
  • Backlit LCD Screen
  • Secure removable Belt clip
  • Compact Size (1 ¾ x 2 ¼ x ½ inches)
  • Water, sweat and shock resistant (cannot be submerged)
  • Rechargeable internal battery - timer will be fully charged in 6 hours. Do not leave timer on charger for longer than 6 hours
  • Please note if the timer is not going to be used for an extended period of time, the battery must be charged at least once every six months.
  • Charging cable included
  • 1 year warranty


Gymboss Accessories

We also offer these accessories that are compatible with the Classic, miniMAX, Plus, and Charge models:


  • Elastic velcro stretches to fit your wrist, forearm, bicep, etc.
  • Color: Black
  • Fits: 9-19 inches (23-48cm)
  • Width: 1 1/8 inches (3cm)


  • Fits 6-12 inches (15-30cm)
  • Width 1 1/8 inches (3cm)


  • Quick release clasp
  • Secure back loop connection
  • Color - Black, with Gymboss repeated in Gray
  • Material - Nylon

Clear Silicone Skin

  • Increase Water Resistance and Shock Protection
  • Fits both the current model Gymboss and the miniMAX model

* Please note the skin does NOT make the timer waterproof, but more water resistant. You cannot submerge your timer underwater, even with the skin on.

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