Short answer: yes—many commercial urban benches do come with a warranty against cracking or fading, but the coverage is not automatic and it is rarely the same from one bench to another. The real question is which material and manufacturer you are looking at.
Recycled plastic and thermoplastic-coated steel benches tend to have the clearest written warranties for cracking, splitting, peeling, and UV fading. This is because the color is either molded through the material or bonded into the coating, so manufacturers are more willing to cover color loss for 5 to 10 years or longer. Powder-coated aluminum and steel frames usually carry a separate finish warranty that may cover fading, chalking, or corrosion, often in the 3 to 10 year range.
Wood benches are a little trickier. A solid hardwood bench may carry a structural warranty against major cracking or rot, but surface checking and natural color change are usually not treated as defects. If fading is a dealbreaker for you, wood is typically not the strongest option unless the stain or sealant has its own limited warranty.
Concrete benches can be structurally warranted against significant cracking, but hairline cracks from curing, settling, or impact are often excluded. Fading is rarely covered because concrete color naturally weathers over time.
So yes, you can find urban benches with warranty protection against cracking and fading. The key is to compare the structural coverage and the finish coverage separately, ask whether UV exposure is included, and check what voids the warranty—things like harsh graffiti removers, pressure washing, salt exposure, or relocating the bench can sometimes void coverage. If a manufacturer is vague about fading, request a written warranty statement before you buy.