Each SKE Crystal 4in1 pod offers up to 600 puffs, which allows for up to 2,400 puffs from all four pods. This is an estimate provided by the manufacturer based on the design of the device and the e-liquid capacity.
However, it is important to bear in mind that the actual puff count a user will get from each pod depends on a number of factors such as vaping style and frequency of use, so may vary.