Home Robot Vacuum Cleaners Irobot Roomba 621 Vs. Irobot Roomba 698

Irobot Roomba 621 Vs. Irobot Roomba 698 Review

8 minute read   Last updated on Mar 5, 2024
iRobot Roomba 621

iRobot Roomba 621

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Key features of the iRobot Roomba 621

Overall Score 6.4

  • Can Clean All Floor Types
  • Has Included Washable Filters
  • Battery Power of 4500 mAh
VS
iRobot Roomba 698

iRobot Roomba 698

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Key features of the iRobot Roomba 698

Overall Score 5.6

A summary by feature comparison

Category Features iRobot Roomba 621 iRobot Roomba 698
COMMONLY ASKED FOR FEATURES can clean all floor types
has mapping and navigation
has an obstacle sensor
works with alexa
compatible with google assistant
number of cleaning modes 3only
warranty period 1year 2year
DESIGN FEATURES has included washable filters
dustbin capacity 0.5L 0.6L
automatically adjusts its height
indicates when full
weight 4.3kg 3kg
width 340mm 340mm
height 92mm 92mm
CLEANING PERFORMANCE AND POWER FEATURES battery power 4,500mAh
operating time 1.5h 1.5h
charge time 3h 2h
operating power consumption 33W
has overheating indicator
has auto-off
has dirt sensor
OTHER FEATURES has problem area cleaning
has carpet detection
support a mobile application
doesn't get stuck
supports virtual barriers
has route mapping
supports auto docking
has anti-fall sensor
can be scheduled
supports wi-fi
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Let's look at each feature category in detail

Commonly Asked For Features

Can Clean All Floor Types

iRobot Roomba 621 can clean all floor types, this is essential, since different rooms within a home may have various types of flooring i.e. carpets. If a robot vacuum is advertised as being able to clean all floor types, it means that the robot vacuum is designed and equipped to effectively clean most flooring materials without any limitations.

Has Mapping And Navigation

A robot vacuum's ability to generate a digital map of its cleaning space is one of the commonly asked-for features. The map it creates allows the robot to keep a record of the layout of the desired space. Mapping and navigation can be used for several purposes, for example the iRobot Roomba 621 having the mapping feature can provide efficient cleaning in the mapped-out areas keeping out of those that are not.

The iRobot Roomba 698 also has the mapping and navigation feature, navigation defines how the robot vacuum moves around the cleaning area. Mapping and navigation often go hand in hand to help the vacuum move to the mapped-out spaces to be cleaned leaving out those that aren't.

Has An Obstacle Sensor

iRobot Roomba 621 has an obstacle sensor, this serves the purpose of detecting and identifying objects in the robot's path, this allwos it to navigate around them and avoid collisions.

Also, the iRobot Roomba 698 has this sensor, obstacle sensors work together to provide the robot vacuum with a comprehensive understanding of its environment, making it possible to navigate around furniture, walls, and other objects when cleaning a room and avoiding damage to both the robot and its obstacles.

Works With Alexa

Most modern robot vacuum cleaners such as the iRobot Roomba 698 are built to work with Amazon Alexa, which means that they can be added to the Amazon Echo ecosystem and controlled using voice commands.

Compatible With Google Assistant

The iRobot Roomba 698 is compatible with Google Assistant, enabling you to control it using voice commands via Google Home devices or the Google Assistant app installed on smartphones and tablets.

Number Of Cleaning Modes

iRobot Roomba 621 has 3 cleaning modes, the number of cleaning modes offered by robot vacuums varies widely depending on the design of the robot vacuum.

Warranty Period

iRobot Roomba 621 has a period of 1 year, this typically range from 1 - 2 years, but some higher-end models may offer longer warranties.

The iRobot Roomba 698, at 2 year has a longer warranty period than the iRobot Roomba 621 by 1 year. When considering a robot vacuum cleaner, it's important to read and understand the warranty terms and conditions, alongside any limitations or exclusions that may apply.

iRobot Roomba 621
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Design Features

Has Included Washable Filters

The iRobot Roomba 621 has washable filters, these are designed to capture dust, dirt, and fine particles during the cleaning process and can be easily removed and washed to keep up the vacuum's performance.

Dustbin Capacity

The iRobot Roomba 621's dustbin capacity is at 0.5L, dustbin capacity determines how much dust, dirt, and pet hair the vacuum can hold before it needs to be emptied.

The iRobot Roomba 698, at 0.6L has more capacity than the iRobot Roomba 621 with a difference of 0.1L The dustbin capacity varies widely among different robot vacuum models, and the capcity you choose should depend on your cleaning needs and the size of the area you want to clean.

Automatically Adjusts Its Height

Different floor types require a robot vacuum to be at a given ground clearance so as to optimize performance. iRobot Roomba 621 can adjust its height to match this demand, for example, it may raise itself slightly when moving to a carpet to allow for effective suction, and then lower itself on hard floors to ensure the brushes make good contact.

Indicates When Full

Most robot vacuum cleaners are equipped with sensors and indicators to notify users when the dustbin is full and needs to be emptied. iRobot Roomba 698 supports this feature, which prevents the robot vacuum from getting clogged which means performance will be maintained as soon as the bin is emptied.

Weight

iRobot Roomba 621 weighs 4.3kg, robot vacuums are commonly designed to be lightweight and compact for easy maneuverability and carrying around.

iRobot Roomba 698, at 3kg is lighter than the iRobot Roomba 621 with a difference of 1.3kg. It's advisable to take in consideration the weight of the robot vacuum when getting a model, and that's if you plan to carry it up and down stairs

Width

iRobot Roomba 621 has a width of 340mm, often referred to as its cleaning path width, is the width of the area that it can properly clean in one go. The width of a robot vacuum is important as it can affect its efficiency and the time it takes to clean a room

iRobot Roomba 698, at 340mm has the same width as that of iRobot Roomba 621. A wider cleaning path can cover more ground in a single pass, shortening the time it takes to clean a room.

Height

iRobot Roomba 621's height measures 92mm, here you are considering the measure from the bottom of the robot vacuum to its highest point. Height is a key consideration, especially if you have obstacles with low clearance in your home.

iRobot Roomba 698, at 92mm has the same height as that of iRobot Roomba 621. When choosing a robot vacuum, ensure that the robot vacuum can go under the furniture and navigate effectively in your living space without getting stuck or causing damage.

Cleaning Performance And Power Features

Battery Power

The battery power of a robot vacuum cleaner is a crucial factor that determines how long the vacuum can run on a single charge. Battery capacity is measured in milliampere-hours (mAh), iRobot Roomba 621's battery power is 4,500mAh

Operating Time

The operating time of a robot vacuum cleaner refers to the time the vacuum can clean continuously on a single charge before it needs to be recharged. iRobot Roomba 621's operating time is 1.5h

The iRobot Roomba 698, at 1.5h has the same operating time as the iRobot Roomba 621 Always plan cleaning cycles around the vacuum's operating time to maximize efficiency and prevent "incomplete work" between charge intervals.

Charge Time

iRobot Roomba 621 has a charge time of 3h, the charge time of a robot vacuum cleaner refers to the amount of time it takes for the vacuum's battery to recharge fully after it has been depleted during a cleaning cycle.

iRobot Roomba 698, at 2h spends lesser time charging than the iRobot Roomba 621 by only 1h. Charge time is an important factor to consider when choosing a robot vacuum, as it determines how long you'll need to wait before the vacuum is ready for its next cleaning cycle.

Operating Power Consumption

This is the amount of electrical power the vacuum uses while it's actively cleaning your home. iRobot Roomba 621 has a power consumption of 33W, power is often measured in watts (W) and can vary among different robot vacuum models based on several consuption factors.

Has Overheating Indicator

An overheating indicator in a robot vacuum serves many key purposes, making it a very important safety feature. It helps protect the iRobot Roomba 621 from damage by detecting when key components, such as the motor or battery, are operating at temperatures that are dangerous.

Has Auto-Off

Auto-off is a feature designed to automatically turn off the vacuum after it has completed a cleaning cycle or when certain conditions occur. iRobot Roomba 621 has an auto-off feature, which is useful for energy efficiency and battery preservation.

Also, iRobot Roomba 698 has this feature, overall, the auto-off feature in a robot vacuum is a key addition that in a way promotes energy efficiency, prolongs the vacuum's lifespan, enhances safety, and adds convenience to the cleaning process.

Has Dirt Sensor

iRobot Roomba 621 has a dirt sensor, these are designed to detect the availability of dirt, dust, or debris in the space being cleaned and can be used to adjust the vacuum's cleaning behavior during cleaning cycle.

You may want to consider buying either the iRobot Roomba 698 or iRobot Roomba 621 If you prefer the ability to automatically adjust the cleaning modes of the robot vacuum based on the level of dirt and debris in your home.

iRobot Roomba 621
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Other Features

Has Problem Area Cleaning

Problem area cleaning enables you to program a robot vacuum to focus on cleaning a particular spot in your space, iRobot Roomba 621 supports this, which can be really useful for addressing localized messes or busy areas.

Has Carpet Detection

iRobot Roomba 621 has carpet detection, which allows the vacuum to detect and adapt to different floor surfaces, specifically recognizing when it moves from hard floors like tile to areas with carpets.

Such a feature is intended to optimize cleaning performance and also make sure that the vacuum adjusts its settings appropriately when cleaning carpets. Robot vacuums with a carpet detection feature such as the iRobot Roomba 621 and iRobot Roomba 698 use sensors to detect surfaces, enabling them to make necessary adjustments for better cleaning.

Support A Mobile Application

iRobot Roomba 698 supports a smartphone app, through which you can control and monitor the vacuum without getting to it physically but through your smartphone or tablet.

Doesn't Get Stuck

This feature in robot vacuum cleaners is intended to reduce the likelihood of the robot vacuum becoming stuck during cleaning. Robot vacuums such as the iRobot Roomba 621 are equipped with various sensors and technologies to navigate around obstacles and avoid getting trapped, but the effectiveness of this feature can vary among different models.

Both the iRobot Roomba 698 and iRobot Roomba 621 have the "anti-stuck" feature, but clearing clutter, ensuring proper cable management, and creating clear paths for the vacuums helps to further reduce the chances of getting stuck while cleaning.

Supports Virtual Barriers

These virtual barriers are set up and controlled via the robot vacuum's mobile app, similar to no-go zones, these barriers are setup to help you control and restrict where the robot vacuum can and cannot go during cleaning.

Has Route Mapping

iRobot Roomba 621 has a route mapping feature that enables it to create a map of your home and schedule efficient cleaning routes. This mapping capability enhances the vacuum's ability to work effectively and systematically.

Route mapping is an important feature as it makes it possible for robot vacuums such as the iRobot Roomba 698 to adapt to the layout of your home to clean more efficiently and reduce the possibility of missing certain spots.

Supports Auto Docking

Auto-docking is a feature in robot vacuum cleaners that refers to the vacuum's ability to return to its docking station when certain conditions are met such as getting work done, battery running low, or any malfunction.

Has Anti-Fall Sensor

Most robot vacuum cleaners such as iRobot Roomba 621 come equipped with an "anti-fall" feature. This feature is intended to prevent the robot vacuum from falling off stairs, ledges, or other elevated surfaces, hence its safety during operation.

This safety feature that is also available on the iRobot Roomba 698 is key in avoiding accidents and keeping the robot vacuum from damage. It gives you peace of mind by ensuring that the vacuum will not fall off a ledge during its cleaning cycle.

Can Be Scheduled

iRobot Roomba 621 has this convenient feature, which allows you to set specific days or times of day for the robot vacuum to automatically start cleaning your space.

This feature in robot vacuums is particularly useful in keeping a consistently clean space without the need for manual intervention. iRobot Roomba 698 too allows scheduling.

Supports Wi-Fi

iRobot Roomba 698 supports Wi-Fi, Wi-Fi-enabled robot vacuums offer several advantages and features, such as remote control, mobile app integration, voice assistant compatibility, and remote monitoring.

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