Giselle Castro-Sloboda/CNET

The latest Nordictrack iSelect Adjustable Dumbbells are unique because they are the only Alexa-powered dumbbells on the market. By connecting to your Alexa device, the iSelect dumbbells allow you to use voice control to change the weight selection. They replace 20 sets of dumbbells and range from 5 to 50 pounds. These are electrically powered so you have to make sure that wherever they’re set up, they’re close to an electrical outlet and within close proximity of an Alexa device to get the best connection. The tray that holds the dumbbells also has a dial that lets you change the weight manually on a digital LCD screen if you don’t want to use the voice control option. 

I liked that these dumbbells are shaped differently than the standard round adjustable dumbbell. The square shape makes it easy to use during floor exercises. When I was using the voice control feature, I found that there was a 6-second lag when changing weights, which doesn’t sound like a long time, but when you’re moving through exercises quickly, it can feel like a lifetime.

Personally, I preferred the alternative option of changing the weight using the digital dial because it was way faster. If you’re into the latest high tech gadgets, then you’ll love all the features on the Nordictrack iSelect Dumbbells. 

Pros

• Sleek looking and blends into any room
• Square shape makes it ideal for floor exercises
• Digital dial makes it easy to change weight

Cons

• Voice-control feature doesn’t always work well and can lag
• Dumbbells have to be placed in rack that needs to be connected to an electrical outlet
• You need to buy an Alexa device if you don’t own one