What's better than a 20X loupe?

Okay retailer's product lists:

• Jewelry-making:
  • https://www.ottofrei.com/collections/magnifiers-loupes-jewelers-watchmakers
  • https://kassoy.com/prodcat/Loupes.asp
• Jewelry- and watch-making
  • https://www.esslinger.com/loupes-and-magnifiers-3/
  • https://julesborel.com/collections/magnifiers?sort_by=product_code
  • https://eternaltools.com/collections/eyeglasses-and-loupes
• Watchmaking
  • https://www.tztoolshop.com/FB_Catalog_Loupes.html
• https://septools.com/collections/loupes-magnifiers
• https://www.penntoolco.com/magnifiers-loupes-pocket-comparators/
• https://www.ascscientific.com/collections/hand-lenses
• https://www.grainger.com/category/machining/precision-measuring-tools/magnification-instruments/magnifiers
• https://www.mscdirect.com/browse/tn/Measuring-Inspecting/Inspecting-Detecting-Testing-Instruments/Optical-Inspection-Equipment/Microscopes-Magnifiers-Loupes/Handheld-Magnifiers?navid=2107891

Writeups

High-end handheld magnifiers

• My 20X loupe
  • Lens diameter: 21 mm
  • Focal distance: ?
• Bausch+Lomb Coddington Magnifier 20X
  • Lens diameter: 12.5 mm
  • Focal distance: 1.3 cm
• Bausch+Lomb 20x Hastings triplet loupe
  • Lens diameter: 8.3 mm
  • Focal distance: 13 mm

Watchmaking loupes

Background information:

• https://eternaltools.com/blogs/tutorials/how-to-choose-a-watchmaker-loupe
• https://www.youtube.com/watch?v=5WmfdOz7Uzk