# How much do the Roborock S8 MaxV Ultra and Roomba j9+ cost?

> Price comparison and value analysis

*Published: 2026-03-20 | Updated: 2026-03-20 | Source: https://shopsavvy.com/answers/how-much-do-roborock-s8-maxv-ultra-and-roomba-j9-cost*

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## Product: Roborock S8 MaxV Ultra
**Brand:** Roborock

The [Roborock S8 MaxV Ultra](https://www.amazon.com/dp/B0CSKBXQ68?tag=shopsavvy-20) costs about $1,800 at full retail. The [Roomba j9+](https://www.amazon.com/dp/B0C415NHBM?tag=shopsavvy-20) costs around $900. Seems like an easy decision, right? Not so fast.

## The Comparison Isn't Fair

The [Roomba j9+](https://www.amazon.com/dp/B0C415NHBM?tag=shopsavvy-20) doesn't mop. At all. It's vacuum-only.

If you want mopping from iRobot, you're looking at the Roomba Combo j9+ at $1,400. Now the price difference is $400, not $900. And for that extra $400, the [Roborock](https://www.amazon.com/dp/B0CSKBXQ68?tag=shopsavvy-20) gives you:

- Way more suction (10,000 Pa vs Roomba's lower power)
- A dock that washes and dries the mop with hot water
- Automatic detergent dispensing
- The FlexiArm that reaches corners
- Faster charging

That's solid value for $400.

## Real-World Prices

Nobody pays full retail. Both go on sale regularly:

**[S8 MaxV Ultra](https://www.amazon.com/dp/B0CSKBXQ68?tag=shopsavvy-20) sale prices:** $1,299-$1,399 (25-30% off)
**[Roomba j9+](https://www.amazon.com/dp/B0C415NHBM?tag=shopsavvy-20) sale prices:** $599-$699 (25-30% off)

Prime Day and Black Friday are your best bets for deals.

## Which One Makes More Sense?

**If you only need vacuuming:** The [Roomba j9+](https://www.amazon.com/dp/B0C415NHBM?tag=shopsavvy-20) at $900 (or $600 on sale) is solid. You're paying for good vacuum performance without mopping features you won't use.

**If you want vacuum AND mop:** The [S8 MaxV Ultra](https://www.amazon.com/dp/B0CSKBXQ68?tag=shopsavvy-20) is better value than the Roomba Combo j9+. More features for about $400 more.

**If budget is tight:** Wait for a sale. Both products see significant discounts multiple times per year. Setting a price alert can save you hundreds.

## The Bottom Line

At full price, the [S8 MaxV Ultra](https://www.amazon.com/dp/B0CSKBXQ68?tag=shopsavvy-20) is expensive but feature-packed. The [Roomba j9+](https://www.amazon.com/dp/B0C415NHBM?tag=shopsavvy-20) is more affordable but does less. Compare what you actually need, not just sticker prices.

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*Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from thousands of retailers, and analysis of user reviews to give you a well-rounded picture.*