The main difference between the "VAPORETTO SMART 100 T (4 Bar, 1500 W)" and the "Polti Vaporetto Smart 110 Eco" lies in several key areas:

- Eco function: the Vaporetto Smart 110 Eco has a special Eco function that reduces water and energy consumption by 23% and 22% respectively, which is not the case with the Vaporetto Smart 100 T.

- Number of accessories: The Vaporetto Smart 110 Eco comes with 12 accessories, including the extension tubes and the Vaporforce brush, while the Vaporetto Smart 100 T includes 10 multi-purpose attachments.

- Boiler and tank: Both models have separate vapour generation and a tank that can be refilled during operation, but the Vaporetto Smart 110 Eco has greater flexibility in tank size and handling.

- Additional functions: The Vaporetto Smart 110 Eco offers additional functions such as the dispenser for Polti Frescovapor, an air freshener that is mixed with the steam, which is not available with the Vaporetto Smart 100 T.

- Heating power and steam pressure: Both models reach 4 bar steam pressure and have a heating power of 1500 W, but the heating time can vary slightly, with the Vaporetto Smart 110 Eco being ready in 2 minutes, while the Vaporetto Smart 100 T is ready in 4 minutes.

These differences show that the Vaporetto Smart 110 Eco offers some additional and more environmentally friendly functions, while the Vaporetto Smart 100 T is characterised by its efficiency and versatility in cleaning.