Which is better for a built-in outdoor kitchen?

The Napoleon 500 Series. It is designed to drop into a cutout, while the Weber Genesis S-435 is a freestanding cart grill that cannot be built in.

Which has more cooking space?

The Weber. It gives 994 sq in total, including a 348 sq in top grate, against 786 sq in on the Napoleon.

Does either include a rotisserie?

Neither includes one. Both need a separately sold rotisserie kit, and the Napoleon's spec sheet lists no rotisserie at all.

Is the Napoleon worth $1,679.00?

That depends on your build. You pay for stainless construction and infrared searing, but you get no cart, side burner or side tables. Its only recorded daily price was $1,007.40 on October 30, 2026, so watch for it to drop again.

Which is more reliable?

The Weber has a much larger record: 4.6 out of 5 from 3,046 ratings. The Napoleon sits at 4.1 from 36 ratings, which is too few to judge long-term reliability.

Can I use the Weber without a propane tank?

No. It runs on liquid propane and the 20 lb tank is sold separately, so budget for a tank on top of the grill price.

Napoleon Built-In 500 Series Grill vs Weber Genesis S-435 Gas Grill

Buy the Weber Genesis S-435 if you want a freestanding grill with more cooking area, a sear zone, a side burner and a long track record of owner ratings. Buy the Napoleon 500 Series if you are building the grill into an outdoor kitchen island and want infrared cooking without a cart. The Weber is the better value for most shoppers, but no current price was given for it here; the Napoleon's best new price is $1,679.00 at Lowe's as of November 8, 2026, and its only recorded daily price was $1,007.40 on October 30, 2026.

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