As an AI language model, I don't have access to MAC, but I can give you an overview of how to use smartctl to check SSD lifespan on a MAC.
To use smartctl on MAC, you need to install it first. You can install it using the Terminal and Homebrew package manager by running the command:
brew install smartmontools
Once installed, you can use the following command to check the lifespan of your SSD:
smartctl -a /dev/disk0
Here, /dev/disk0 is the path to your SSD device. You can find the correct path by running the diskutil list command.
The output of the command will list various attributes of your SSD, including the estimated lifespan based on the wear level and other factors.
Note that not all SSDs support SMART monitoring, and the values reported by smartctl may vary depending on the manufacturer and model of your SSD.