LIQUA 4S Vinci includes specially designed atomizers that are tailored to work together with LIQUA 4S e-liquid. Although you can use another atomizer from the Vinci line - performance would be inferior to the task: leakage, wrong nicotine delivery, taste issues.
LIQUA 4S e-liquid is a unique product for the device. It has specially selected nicotine, the unique recipe of nicotine-salt, flavors matched with device performance, the safe formulation for the materials of the device with prolonged atomizer usage. While you technically can use another e-liquid - we strongly suggest against it.