Gymboss Charge Interval Timer and Stopwatch

Such an easy but handy tool when you're interval training. I wear earbuds when I'm working out, and clip this right to my sports bra. I can feel the vibrations and the beep and I don't have to turn my music down. The battery life is phenomenal, I've charged it once and have used it at least 3x a week for the past two months or so and it's still showing fully charged. I also love that this is rechargeable, I don't have to fiddle with batteries or the extra weight clipped to my clothing. Definitely spend the extra $4 to get this version, it's worth it.

"Weatherproof allowing for use in heavy continuous rain as well as extreme sweat and humid conditions." - this is a lie. Bought 2 of these; one for me and one for wife. Both easily got moisture inside and never worked again. Actually, they worked until battery died because could not turn them off. Now that battery is dead, they won't charge and won't turn on.Mine was water damaged with no rain and just body sweat in Massachusettes running a half marathon. Wife's was damaged in really light rain in Rhode Island; also doing a half marathon.Terrible product. We have others that have lasted years in heavy rain and body sweat. The downside to those is they take batteries. I guess the technology of recharging capabilities makes them suceptible to moisture damage.

like the product, does what I needed to run intervals for running. Also, like I can charge the timer instead of having batteries.

I’ve had it on my gear for over a year, and while it hasn’t been in direct rain, it’s been exposed to extreme heat/cold. The screws are even rusted. It still works, but fortunately I don’t need to change the settings because the screen definitely is a dud lol. Ive only charged it a couple times, which is really impressive considering the abuse and temperature changes.

This thing is great but I'm going to give you some advice. If you always wear it on your wrist, glue it onto the wristband. It's bigger than a watch and I tend to knock it on things and I had a brand new one and I knocked it off somewhere not knowing it and lost it. This is not like the model where you have to take the battery door off the back since with this one you just charge it from the side so if it's always going to be on your wrist glue it!!

I love that I can stick this in my pocket and just press the button on the top to start it. I don’t have to do anything to stop it. So convenient and worth the money!

Used it for one training session with my students. It works, but is very difficult to change on the fly if adding in 2 more exercises into a circuit for example. Got annoying. I believe it can only be set up to do 9 intervals. Maybe 18 if you were doing short enough intervals that you could set the "rest" time to just be another interval back to back. I sent it back and got a remote controlled crossfit clock instead. 100% worth it. 10$ more or something, and SOO much easier to use! Way more intervals too. Up to 99!!!!I'm sure if you take the time to set this thing up properly to use when biking or rowing or something for intervals of bursting it could be very handy. It is LOUD though, so I would stick with the vibration alarm for everyone's sanity sake, including yours. Unless, of course, you are going Very Hard during intervals and wouldn't notice the vibrations. They are quite strong though.

I’ve been looking for this interval timer for my workout and I finally found exactly what I wanted it! I really like how it’s rechargeable and has a vibrate setting. So far so good