The Dreame L10s Pro Ultra Heat offers several advantages over the L10s Ultra Gen2. Here are some of the most important differences:

- Hot water mop cleaning: The L10s Pro Ultra Heat can clean mops with hot water, which removes grease residue more effectively. This function is missing on the L10s Ultra Gen2.
- Navigation and camera function: The L10s Pro Ultra Heat has better navigation with laser room measurement and an RGB camera that enables a live view function. The L10s Ultra Gen2, on the other hand, uses an IR camera without live view.
- Mop extend function: The L10s Pro Ultra Heat has an extendable mop function that enables better edge cleaning.

Overall, the L10s Pro Ultra Heat offers more advanced functions, especially in mop cleaning and navigation. However, the L10s Ultra Gen2 is less expensive and offers pet mode, which can be useful for households with pets.