I tried paying with my palm at Whole Foods using Amazon's futuristic scanners. It was scarily convenient.

At my local Whole Foods, the palm scanners are available at both the regular registers and at the self-checkout registers.

You can also enroll in Amazon One online using your Amazon account ahead of time, then complete your profile by scanning your palms the next time you're at a store that has the device.

After I tapped the screen, the device asked me if I pre-enrolled online or if I was not yet enrolled. I clicked on the latter — "Sign up now."

Easy enough! I then got out the credit card I wanted to enroll with, and inserted it into the bottom of the palm scanner. There didn't seem to be a wireless tap or Apple Pay option for this step.

The device prompted me to hover my hand above the scanner.

I followed the instructions on the device, first scanning my right palm, then my left, which was optional.

The scanner then prompted me to enter my phone number. Amazon sent me a text with a link to a page asking me to verify my card details with the last four digits of my credit card number and the card's expiry date. And that was it — it took me to my Amazon One home page, where I can see my linked phone number, Amazon account, and payment method. There's also the option to un-enroll in the program and delete my profile at the bottom.

The page gives me the option to link additional memberships and awards, like Panera's rewards program and an AXS Mobile ID. I've also now added my driver's license to my profile, meaning I can now pay with my palm for age-restricted purchases without being carded at participating Amazon One locations.

I've now used the payment method every time I've gone to Whole Foods since, including at an unfamiliar location in Albany that I stopped in at on a whim during a road trip. It works as advertised — I scan all my groceries at the self-checkout, scan my palm, and my Prime account and payment method are instantly applied.

I was initially skeptical of the tech — and I definitely still am. After all, there's something about giving up a scan of one of your body parts that feels inherently vulnerable.

And the technology has been criticized by some, especially those with privacy concerns and worries that the biometric data Amazon is collecting could be misused.

Amazon, however, emphasizes that it "will never share palm data with third parties," "including in response to government demands, unless we're required to comply with a legally valid and binding order." The company also says on its website that the Amazon One palm signature can't be replicated like a credit card or password to impersonate users, because it doesn't use "raw palm images" for user identification, and that the scans are immediately encrypted and protected by the AWS Cloud.

An Amazon spokesperson directed Insider towards a blog post on the company's website, which points out that the palm scanning is an intentional gesture from the customer — so biometric info isn't captured passively. The tech is "gender and race agnostic," it said.

"Amazon One operates beyond the normal light spectrum and cannot accurately perceive sex or skin tone, and it does not detect your gender or race," the post said.

The more I keep using the tech, the more I have mixed feelings by how convenient it feels. Does anyone really need to have a biometric payment option at the grocery store? Definitely not. After all, we can already pay pretty easily with the tap of a card or phone.

But does it make breezing through self-checkout just a little bit more streamlined? Yes. And while I hate to admit it, I think it might be winning me over.