Do all brand of diapers absorb the same amount liquid?

No, not all brands of diapers absorb the same amount of liquid. Different diaper brands use different materials and construction methods, which can affect their absorbency. Some brands may use more absorbent materials, such as cotton or bamboo, while others may use less absorbent materials, such as plastic. Additionally, the design of the diaper can also affect its absorbency. For example, diapers with more layers or thicker material may be more absorbent than diapers with fewer layers or thinner material.

It's important to note that the absorbency of a diaper is not the only factor to consider when choosing a diaper. Other factors, such as comfort, fit, and price, should also be taken into account.