Gyro Ball Wrist Exerciser with Bluetooth Auto-Start Power Forearm Strengthener Gyroscopic Fit Light Trainer for Arm and Fingers Hand Grip with LED Stronger Bones and Muscle

Read from all others how GREAT this PRODUCT is. The people having Bluetooth issues are the ones using the provided very low quality battery. BUY YOUR OWN BATTERY FROM THE START even if you think the provided battery works.First of all the light generated from spinning is separate from the battery that only operates the Bluetooth; don't get fooled in thinking the battery is good because you are seeing the different colored spinning light. Only the blinking small green light located on the electronics board by the battery, that does not spin, is the battery light; shaking the unit gently 5 times activates my green blinking light. When this green light blinks it is ready to pair to your phone; I am using one of the latest Android S21 Galaxy phone but my old Galaxy S7 Edge works too. If you get the Bluetooth to work with the provided battery but it drops out then your battery is high probability it needs to be changed because of power issues.Also note if you have a clear model like mine that there are no wires from the battery electronic board connected to the spinning part that provides the cool blue, green, red, pink, and other lights. This is because the battery can be completely not working or missing for this device to work without Bluetooth.If you do get the Bluetooth version, it is really fun to watch the meter go up as you spin faster and the force increases. Having a daily record of exercise quantity and magnitude keeps many people coming back and getting better.This is a great product for people that exercise and especially if you don't. this product might help you from not getting injured from typing or even doing yard work after a winter's inactivity.

Muy bueno facil de usar y super diferente a los demas desestresantes le doy 5 start

The media could not be loaded.  It said easy start but there is nothing east but starting this ball. One spin to start is not enough and you’ll find your self taking as much time trying to start it as you do exercising. Also the lights that come with it are just full on annoying and serve zero purpose. The ball does work they way it is supposed to and you will feel the effects but it leaves much to be desired.

This is pretty cool and being able to best everyone in my house makes me happy.

Can't get this to work maybe I don't understand how it works its sitting in cor er collecting dust and the app is not great functionally I can't get both working Product appeara to be made well but if u canr get it to work ita a dud!

The app is the only issue, I prlurchased it with the app in mind and it is impossible to and the website is down all the time

The media could not be loaded.  I had a older string start powerball I bought over a decade ago and decided to buy this out of pure nostalgia, and I’m happy I did. The easy start works well, and I had forgotten how good of a tool this is for exercising your hand grip and wrist. First thing I did was slap in a brand new CR2032 after reading some reviews, and would advise anyone to do the same if you encounter any issues because it’s clearly a low quality one that comes with it. The app is a little buggy and sometimes slow but it’s not like we’re gathering data for the next NASA rocket launch. There’s even rankings for you to compare your efforts with other users. Overall I’m pleased with it.

This thing is still going strong with no issue at all. You will definitely feel and notice the difference when you use this. Another good purchase and good bang for your buck.