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Short answer
Both models use cold steam and are designed exclusively for the coats of cats and dogs. The difference is in the run time (12 vs 18 minutes), the head width (9 vs 13 cm) and the fact that the S900A has a self-cleaning button and a stainless steel and TPR brush head. The S800A is the compact choice for one or two pets; the S900A is better for long-haired breeds or multiple pets.
Two models, the same principle — yet different results depending on the type of pet and how intensively you brush. Many buyers choose on price alone and miss out on the model that really fits their situation. This article explains the real differences.
| Feature | S800A | S900A |
|---|---|---|
| Steam type | Cold (always) | Cold (always) |
| Run time per fill | 12 minutes | ✓ 18 minutes (+50%) |
| Head width | 9 cm | ✓ 13 cm — faster on large coats |
| Brush type | Standard brush head | ✓ Stainless steel + TPR bristles — deeper into the coat |
| Self-cleaning button | ✗ Clean manually | ✓ Automatic via button |
| Heat-up time | 45 seconds | 45 seconds |
| Weight | 680 grams | 740 grams |
| Water reservoir | Fixed, refillable | Fixed, refillable |
| Price | Lower entry level | Higher segment |
The S800A is the right choice if: You have one or two cats or a small to medium-sized dog with a normal to light coat. You brush weekly and don't have large amounts of hair to deal with. You want something compact and light for easy use and storage.
The S800A weighs 680 grams, making it the lightest model. The 12-minute run time per fill is enough for one cat in a brushing session. Cleaning the head by hand after use takes about 30 seconds — not a big deal with a normal amount of hair.
The S900A is the right choice if: You have a long-haired breed (Maine Coon, Ragdoll, Norwegian Forest Cat) or multiple pets. You want the self-cleaning button for faster maintenance. You have a large dog with a thick undercoat where you need the wider 13 cm head.
The S900A's self-cleaning button makes the biggest practical difference: after a session with a Maine Coon, the brush head is full of hair. With the self-cleaning button, the head is clean in ten seconds — with the S800A you do it by hand. The stainless steel and TPR brush head of the S900A also reaches deeper into thick undercoats.
Also read: Have a long-haired cat? Our article on steam brushes for Maine Coon, Ragdoll and Norwegian Forest Cat gives specific advice per breed.
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