iRobot Roomba j8+

No lab has tested it yet, so it is not in our ranking.

Customer rating ★ 3.3 from 24 reviews at Amazon

Where it leads robots with a self-emptying stationAll 11 facts →

3.4 inRobot heightjoint #1 of 10

Which robot is right for your home? Find out in 7 questions →

Before you buy, compare it with 2 recommended alternatives

No store here sells this model today, so beside it the highest-scored model with the same kind of station that one does, and the cheapest of the top 10.

Green is the best of these 3, also when they share the lead.

Price and ranking
	This model iRobot Roomba j8+ Best on 1 fact	Cheapest of the top 10 ILIFE A30 Pro Best on 2 facts	Highest score here Dreame D20 Plus Best on 4 facts
Lowest price	–	$249Amazon.com best	$309Amazon.com
Score	not in our ranking		best
Rank	–	rank 3 of 14 with a self-emptying station	rank 1 of 14 with a self-emptying station
Customer rating	★ 3.3 · 24 reviews	★ 4.2 · 12,009 reviews best	★ 4.2 · 3,676 reviews best
Mopping
Mop type	no mop	flat or vibrating pad	flat or vibrating pad
Washes the mop	–	–	no
Station
Station same on all	self-emptying station	self-emptying station	self-emptying station
Dust bag lasts longer is better	up to 60 days	up to 49 days	up to 150 days best
Brush and obstacles
Anti-tangle brush	–	–	yes
Climbs thresholds up to higher is better	0.6 in (16 mm)	0.6 in (15 mm)	0.8 in (20 mm) best
Size, noise and age
Robot height lower is better	3.4 in (8.6 cm) best	3.7 in (9.5 cm)	3.8 in (9.7 cm)
On the market since	–	–	–

Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.

What to expect from the iRobot Roomba j8+

The iRobot Roomba j8+ is a self-emptying Roomba from iRobot's j series: its Clean Base empties the bin into a bag that holds up to 60 days of debris, and iRobot rates the battery at up to two hours. According to the listing it learns the layout of the home and builds maps, uses iRobot OS to avoid objects and schedule cleaning, and cleans with iRobot's three-stage system.

That is all the Amazon.com listing says. It names no suction figure, no navigation or obstacle sensor and no mop, so on paper it is hard to tell what it adds to the tested j7+ beyond the longer run time iRobot quotes, two hours against 75 minutes.

None of our test sources has measured it, so how well it vacuums and how reliably it avoids objects is still unknown, and our specifications for it are thin. Anyone who would rather buy on test results can look at the j7+, which Vacuum Wars and RTINGS tested: strong on carpet, very good at avoiding pet waste and cables, and let down by low suction and a short run time.

Based on the maker's specifications and our price data; none of our test sources has tested this model.

iRobot Roomba j8+ specifications

The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.

Robot height3.4 in

Climbs thresholds up to0.6 in

Runtime per charge90 min

Consumables: a 2.5 l dust bag in the station, which lasts up to 60 days.

Mopping 1 fact

Mop type How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.: no mop

Dock 4 facts

Empties the dust bin The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.: yes
Bagless The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself.: no
Dust bag capacity How much the dust bag in the dock holds.: 2.5 l
Dust bag lasts How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter.: up to 60 days

Navigation and obstacles 2 facts

Navigation How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognizes more.: gyroscope
Climbs thresholds up to The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.: 0.6 in (16 mm)

Robot 2 facts

Robot height How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.: 3.4 in (8.6 cm)
Dust bin in the robot How much dust the robot holds before you empty it. It matters less with a self-emptying dock, which empties the bin after every run.: 400 ml

Battery 1 fact

Runtime per charge How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.: 90 min

Smart features and warranty 1 fact

Home Assistant Whether the robot works with Home Assistant, the home automation software you run yourself. Official means the integration comes with Home Assistant itself, community that volunteers maintain it.: official integration

Sources: vacuumwars.com · amazon.com · homesupport.irobot.com · home-assistant.io