Smart dumbbells are nothing new. In the past few years, we have covered a couple of them that combine with your smartphone to help you train harder. The NordicTrack iSelect Adjustable Dumbbells are also worth a look. It is a pair of Alexa compatible dumbbells that can be adjusted from 5 to 50lbs. They have a digital LED screen to show the current weight.
These dumbbells are designed to replace 20 individual weights. With iFit Trainer, you can take fitness classes at home. The NordicTrack iSelect Dumbbells come with a storage tray with an integrated tablet holder and easy weight selection dial.[where to get it]