Recent owners of Apple's brand-new iPhone XS and XS Max are claiming that selfies taken with the new iPhones are making their skin look noticeably smoother than previous iPhones.

It's something that Lewis Hilsenteger of the popular tech YouTube channel Unbox Therapy pointed out, too. And there's no option to turn off the smoothing effect in the iPhone XS. Hilsenteger went as far as to call the effect "beautygate."

The smoothing effect on selfies taken with iPhone XS phones is reminiscent of the "beauty modes" from phones like Samsung's line of Galaxy phones.

Apple blog Cult Of Mac is attributing the smoothing effects to the iPhone XS' "noise reduction" that Apple briefly mentioned during its keynote event; it helps remove the grainy look in photos taken in darker environments by smoothing out details.

Naturally, we tested this theory — that the new iPhones create smoother-looking selfies than previous iPhones — with an iPhone X and an iPhone XS Max, both of which were running the latest version of Apple's mobile operating system, iOS 12. We also made sure that Apple's new Smart HDR feature was turned on in the iPhone XS Max. The Smart HDR feature is not available on the iPhone X.

The results were definitive. The iPhone XS Max we used produced selfies that made our skin noticeably smoother than selfies taken with the iPhone X. And we noticed the smoothing effects in selfies with plenty of light, too, which doesn't align well with the theory that the iPhone XS' noise reduction is the main cause for the smoothing effect.

Check out the results for yourself: