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M Running Stopwatch W500
Are you looking for a simple and precise watch to measure your running performances? Our W500 watch in size M is ideal for intense runs and interval training sessions.
Free shipping over $35
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Measurement settings
With date, alarm, back-lighting and 1/100 sec timer.
Coaching
Program your training using its countdown function with 4 split-timers.
Waterproof
Waterproof index of 5 ATM (50m) and buttons for use underwater.
Visibility
Large digits for better visibility.
Water resistant
Work out: your watch is resistant to salt and pool water and perspiration.
Easy assembly/dismantling
Change your strap easily with the exclusive slide system, no tools required.
Easy to use
Easy to adjust using the icons on the screen.
Product Customer Reviews

Needed a stopwatch and this did the job... found that the screen was too dim (even with backlight). Still, if you don't need it in the dark - it's great!
Hello Cindy
Thank you for your feedback :)
Your opinion is important to us as we continuously strive for our customers` full satisfaction. Our mission is to make sports accessible to others with good quality while at the same time maintaining very affordable prices. Value for money.
We will be very happy to have you back shopping with us.
Daniel Khoury
Fitness / Footwear Commercial Director & Buyer
Daniel.khoury@decathlon.com
Easy to use
Great product
Another great value Decathlon product that just works.
I could hardly see the numbers on the display, even it is illuminated, the visibility is low. I return the product 3 hours after receipt. The product display in the website is misleading, you couldn't see the clock with that viability. The sales agent is helpful to organise the return of the product.
Great value product. Does what it promises. Is easy to read without my glasses and everyone mistakes it for a smart watch!
Does exactly what it's supposed to do at a very reasonale price.
I bought this watch to replace a similar priced watch I purchased with Decathlon. I had to replace it as my previous one was stolen. I didn't hesitate in replacing with similar as I was very pleased with the quality and durability... but was very disappointed in comparison to the previous watch! The front marked and scratched very easily and was only used for snorkelling during a 2 week holiday. Also the watch is a 'mens' watch, but beware not much room for expanding the strap.
Those who produce and sell this product should be thoroughly ashamed of themselves. This is by far the worse product I have purchased online. The instructions are a very bad joke. Avoid buying this product and probably anything else from Decathalon.
Hi Francis,
Sorry that you have not had a good experience with this watch. I can help find a solution, please could you provide the details regarding the problems you have encountered.
ROBERT
The W500 M watch is well built with solid buttons and a design that protects the watch face from scratches with a raised edge around the screen. As someone who regularly suffers from eye strain, the reversed LCD screen means the background is reflects less light and easier to read the time, especially in low light situations.
Buy the version without reversed display. This version is useless in ambient light, which makes using the stopwatch function tedious - because using the backlight also changed the function.
Hello Clive,
Thank you for taking the time to write a review on this watch.
If you have the receipt, I invite you to visit your local branch to exchange your watch for the W500 with the preferred screen.
ROBERT
WOOOOOOW
After my last Kalenji watch strap broke, with no way to replace an all-in-one bought this together with an extra strap for later.
Thanks for your feedback, hope it is working well for you!
Thanks,
Joe Rainsford
Athletics Expert
Decathlon Giltbrook
Great watch.. looks cool with clear digits and backlighting for darkness.. Simple intuitive controls.. Useful timer and alarm plus chrono features.. highly recommended
Thanks for your detailed review of the W500 stopwatch, great to hear you are enjoying it!
Joe Rainsford
Athletics Expert
Decathlon Giltbrook
This watch has been awesome to time runs, set timers and alarms and is really easy to get the hang of! I agree with others that after a quick play and some intuition, you won't even need the instructions, but they're clear enough if you do get stuck at all, and the display is very good too! The only reason this isn't 5 stars is the strap. It's a hard plastic that takes some getting used to, and if worn for extended periods can become a bit irritating to the skin. If it was made from a slightly softer material, this would be the perfect watch! Don't let that put you off though, for the price I firmly believe you can't get much better than this lovely piece of kit, just take it off before bed and you'll be all good!
Additional Product Information
Composition
Wristband: 80.0% Thermoplastic polyurethane, 20.0% Stainless Steel ; Frame: 90.0% Polycarbonate - Acrylonitrile Butadiene Styrene, 10.0% Polymethyl Methacrylate ; Deck: 70.0% Epoxy Resin (EP), 30.0% Copper
Time your runs
Time your performances with a stopwatch that's accurate to 1/100th second
Improve your performance with the interval training function
Configure a simple interval training session with 4 separate times with the interval mode. For example:Time 1: 15-minute warm-upTime 2: 30 seconds actionTime 3: 30 seconds restRepetition: 10 timesTime 4: 10 minutes for slowing down
Your watch is waterproof to 5 atm
Keep your watch on as you swim along the surface or have a shower after your exertions, it's waterproofed to 5 ATM and has buttons that work underwater.
Ever heard of the swip system ?
It's easy to change your watch strap without tools thanks to the SWIP fastening system! Just slide the strap on or off.With a secure and resistant system provided by the wave-shaped design.The optional Strap M bracelet (or Swip Strap) is compatible with the following models: W500M Swip, W500+M Swip, W700XC M Swip, A300M Swip, A300+M Swip, Swip Digital M, Swip Analog M and X-Cross 400M.
Product testing
Decathlon teams have been designing watches specifically for sports use for 20 years.During development, each model undergoes more than 30 different tests in the laboratory, as well as some tests in the field conducted by our teams of testers.
Guarantee
Availability of the parts (battery and wristband) needed to use the product: 2 years
Origin
Imported
Superior quality. Unbeatable prices.
For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.
Decathlon makes the difference
-
Research and development
delivers high-quality cost-effective products
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State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

M Running Stopwatch W500
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
