The era of AI personal trainers has arrived.

Sort of.

From American Public Media, this is Marketplace Tech.

I'm Megan McCarty Carrino.

You can get a pretty good workout plan from a chatbot, but the tech is also being incorporated into all kinds of existing fitness apps.

Wall Street Journal personal tech columnist Nicole Nguyen gave some of the most popular ones a spin.

There's Apple's workout buddy, which motivates you through earbuds, the Fitbit

AI health coach, which creates workouts, and Peloton's AI-enabled camera that tracks your form. Nguyen

us to give us the rundown. I think Fitbit's personalization and flexibility can really help someone who's very busy, traveling a lot,

doesn't have a consistent routine yet. I think if you're interested in strength training

and you can stomach the economics of a Peloton, which is, you know, the base price of the

machine and a monthly

fee every month for the system, then it's a really fantastic way to start with strength training

because it is giving you that form correction. So I would say Peloton was my favorite.

And the most expensive option, given that you have to invest in this pretty pricey

hardware to get that? Yes, yes, definitely. It's, you know, the bike is not cheap. It's in the

$2,000 range, depending on what time of year you're buying this bike. And then it's a $50 a month

subscription on top of that. Peloton used to have

a much cheaper camera that sits on your TV that did similar but less advanced form correction,

but you can't buy that anymore. It discontinued that TV accessory to, I think, force people

to buy the more expensive cardio machine. Was there anything that you wished that these apps would do that they didn't, whether it's

sort of a capability maybe that the technology doesn't have or just bundling of different

...