Cost to own
Which flagship vacuum-mop has the lowest annual consumables bill?
The price on the box is where owning one starts. This page adds a year and three years of the parts each maker prices and gives an interval for, and counts the failures that need a person.

This page checks
- Three years, pricedList price plus the parts each maker prices
- What you replaceEach part, how often, and a year of it
- Failures that need youOf those on each record
iRobot
Where to buy
iRobot j-series firmware update expands obstacle recognition and carpet detection
Full specifications18 figures on record · 13 differ
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Consumables
What a year of upkeep costs on each flagship
Up front the two are within $201 of each other. Three years of priced parts put them $714 apart at least, and the largest single yearly cost among the parts is the X50 Ultra’s cleaning solution, about $54 a year.
$2,235+
$1,600 robot, then $212 a year in parts. 1 not counted.
Maker store prices$1,521+
$1,399 robot, then $41 a year in parts. 5 not counted.
Maker store prices- Dust bagevery 2–4 months$18/yr
- Mop padevery 1–3 months$40/yr
- Filterevery 3–6 months$35/yr
- Main brushevery 6–12 months$45/yr
- Side brushevery 3–6 months$20/yr
- Cleaning solutionevery 3–6 months$54/yr
- Kitno maker intervalno interval
- Dust bagUp to 60 days per bag$41/yr
- FilterTypical: every 3–6 monthsno interval
- Main brushTypical: annuallyno interval
- Side brushTypical: every 3–6 monthsno interval
- Mop padAfter up to 30 washesno price
- Kitno maker intervalno interval
2 of 3
need a person to fix.
Its record3 of 4
need a person to fix.
Its recordSame on both: no paid plan found for an owned robot. Prices are each maker’s own US store, list prices only; a part counts only when its maker states both a price and an interval.
Fit CheckX50 Ultra and Roomba Combo j9+ carry the same verdict on every condition their Fit Checks share, so a fit control would give the same answer for each. Each robot’s own page has its full Fit Check.

Everything else
Where they land among 259 robot vacuums
Only the measures on which these two differ. The bar is the whole category; the block is the typical middle half; the tick is the median.
Sources
Where every figure comes from
- Dreame X50 Ultra · dreametech.com product page; Dreamehome app listing (App Store)
- Roomba Combo j9+ · irobot.com product page; Roomba Home app page
A part counts toward a year only when its maker states both a price and an interval. A part with either missing is listed and left out of the total, never estimated.
Questions
What readers ask
Why is a total marked with a plus?
Some of that robot’s parts have no maker price or no maker interval, so they are listed but not counted. The real total is at least the number shown.
Does either of these need a subscription?
No paid plan was found for either. The Dreamehome App Store listing shows no in-app purchases, and iRobot’s Roomba Home app page lists no paid tier.
Do third-party parts change the bill?
This page prices only each maker’s own parts, so it does not show third-party costs. Their fit and lifespan are not documented by the makers.
Common questions

X50 Ultra
Roomba Combo j9+