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iRobot Roomba 620

No store we follow ships this model to the United States. This page says what it can do, and which similar robots you can buy here.

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

iRobot Roomba 620 (white)

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.

This model iRobot Roomba 620 Cheapest of the top 10 ILIFE V2 Best on 1 fact Highest score here Tikom G8000 Max Best on 4 facts
Price and ranking
Lowest price – $99Amazon.com best $129Amazon.com
Score not in our ranking 2.8 4.5 best
Rank – rank 8 of 9 without a station rank 1 of 9 without a station
Customer rating – ★ 4.2 · 24,424 reviews ★ 4.4 · 4,893 reviews best
Mopping
Mop type – no mop flat or vibrating pad
Washes the mop – – no
Station
Station same on all charging dock only charging dock only charging dock only
Brush and obstacles
Anti-tangle brush – yes –
Obstacle avoidance – – none
Climbs thresholds up to higher is better 0.6 in (16 mm) 0.6 in (15 mm) 0.7 in (18 mm) best
Size, noise and age
Robot height lower is better 3.6 in (9.1 cm) 3 in (7.6 cm) 3 in (7.6 cm) best
Noise not judged – 60 dB –
On the market since – – March 2025

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.

iRobot Roomba 620 specifications

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

Robot height3.6 in
Climbs thresholds up to0.6 in
Runtime per charge60 min
Battery capacity3,000 mAh
Robot weight7.9 lb

Dimensionsrobot and dock

Robot, from the side 13.7 in across 3.6 in

From the published dimensions. The robot passes under furniture with 3.6 in of clearance or more.

Navigation and obstacles 1 fact
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 3 facts
Robot height

How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.

3.6 in (9.1 cm)
Robot diameter

How wide the robot is. Narrower gets between chair legs more easily, wider usually means a bigger dust bin.

13.7 in (34.8 cm)
Robot weight

What the robot weighs. It counts most if you carry it up a staircase every day.

7.9 lb (3.58 kg)
Battery 2 facts
Battery capacity

The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.

3,000 mAh
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.

60 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: homesupport.irobot.com · home-assistant.io

Frequently asked questions about the iRobot Roomba 620

How high a threshold can the iRobot Roomba 620 climb?

Thresholds up to 0.6 in (16 mm), the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.

Does the iRobot Roomba 620 fit under low furniture?

The robot is 3.6 in (9.1 cm) tall, so it fits under furniture with at least 3.6 in of clearance.

How long does the iRobot Roomba 620 run on one charge?

60 minutes on its quietest setting.

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