If you don't have an iphone, you can view he model by downloading them in the "options" drop-down menu to obtain the usdz file, which you can then use either with Pixar open-source suite https://github.com/PixarAnimationStudios/USD or other software that support the format.

Or you can use an online file converter like https://products.aspose.app/3d/en/conversion/usd-to-obj and see the result in Meshlab.

Direct in-browser visualization is possible but https://products.aspose.app/3d/fr/viewer worked but the scale was wrong and prevented to zoom enough.

You can also view some high quality scan in the Apple's demo https://developer.apple.com/augmented-reality/quick-look/

(Edit: The ones with the "Made with object Capture" label which this service is a front-end for https://developer.apple.com/augmented-reality/object-capture... ).