Vortex Crossfire red dot left, Aimpoint Micro H-1 right.
The H-1 was released in 2007, the Crossfire red dot was released in 2018. They have the same lens diameter, the same dot size, the same control layout, the same overall dimensions and weight and use the same battery.
If you want to, you can choose to believe these are totally unrelated and independent designs. I choose to believe that the Crossfire red dot is one of a number of very-slightly-cosmetically-altered clones of the Aimpoint T-1.
This isn't revelatory; a number of companies' product lines include (or are entirely composed of) lightly cosmetically altered cloned red dot optics. Primary Arms are the most notable - their equivalent of the H-1/Crossfire red dot is the
MD-RB-AD. There's a hierarchy here - Primary Arms are basically equivalent to unbranded things you get off AliExpress, but Vortex are more expensive. Vortex's
Strikefire II and Primary Arms'
PA30MMRD-AD are both straight clones of the Aimpoint
Comp ML2, for example, but the Vortex is 40% more expensive. That extra cost should reflect a better build process (some combination of materials, processes and QC) and/or an improved warranty.
Like I said, there is value added in buying a Chinese-made "inspired by" optic rebranded by or manufactured on behalf of a named company. You get vastly better QC, you get support that otherwise literally would not exist - which might include a good warranty - and you get vastly better QC. It's up to OP to decide if those guarantees - a sight that works, and will keep working or will be replaced - are worth the price premium to him over an unbranded version of the same product.