Question about HP 953XL Ink 4-pack blister

Hoi, what is the difference between this product and this one: https://www.digitec.ch/de/s1/product/hp-953xl-multipack-y-m-c-bk-tinte-tinte-9414926 The product picture is exactly the same, but in the description this product can print more than three times as many pages with less capacity. How is that possible? Why does this one cost 40 francs more? In addition, I have seen that this one works for the 6950 and 6970 printers and the cartridge from the link works for completely different printers. How is this possible with the same product name? Thank you for your answer