Home Robot Vacuum Cleaners Irobot Roomba 770 Vs. Irobot Roomba 981

Irobot Roomba 770 Vs. Irobot Roomba 981 Review

7 minute read   Last updated on Mar 5, 2024
iRobot Roomba 981

iRobot Roomba 981

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Key features of the iRobot Roomba 981

Overall Score 5.9

  • Battery Power of 3000 mAh
VS
iRobot Roomba 770

iRobot Roomba 770

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Key features of the iRobot Roomba 770

Overall Score 4.9

  • Can Clean All Floor Types

A summary by feature comparison

Category Features iRobot Roomba 981 iRobot Roomba 770
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 4only 3only
warranty period 1year 1year
DESIGN FEATURES dustbin capacity 0.5L 0.5L
automatically adjusts its height
indicates when full
weight 4kg 3.8kg
width 351mm 353mm
height 92mm 91mm
CLEANING PERFORMANCE AND POWER FEATURES battery power 3,000mAh
operating time 2h 2h
charge time 3h 3h
operating power consumption 30W
has auto-off
has dirt sensor
OTHER FEATURES support a mobile application
doesn't get stuck
supports virtual barriers
has route mapping
has voice prompts
supports auto docking
has anti-fall sensor
can be scheduled
has a remote control
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 770 can clean all floor types, this feature comes in handy, since different rooms inside a home may have various types of flooring i.e. carpets. When a robot vacuum is stated able to clean all floor types, it implies that the vacuum is designed and equipped to effectively clean most flooring materials without much limitations.

Has Mapping And Navigation

The robot vacuum's ability to generate a map of its cleaning area 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 different situations, e.g. the iRobot Roomba 981 having the mapping feature can provide efficient cleaning in the mapped-out areas keeping out of those that are not.

Has An Obstacle Sensor

iRobot Roomba 770 has an obstacle sensor, such a sensor serves the purpose of detecting and identifying obstacles in the robot's path, allowing it to navigate around them and avoid collisions.

Also, the iRobot Roomba 981 has an obstacle sensor, obstacle sensors work together to provide the robot vacuum with a comprehensive understanding of its environment, enabling it to navigate around furniture, walls, and other objects when cleaning a room thus preventing damage to both the robot and its obstacles.

Works With Alexa

Many modern robot vacuum cleaners such as the iRobot Roomba 981 are designed to work with Amazon Alexa, which implies that they can be integrated with the Amazon Echo ecosystem and programmed using voice commands.

Compatible With Google Assistant

iRobot Roomba 981 is compatible with Google Assistant, enabling you to control it using voice commands through Google Home devices or the Google Assistant app found on smartphones and tablets.

Number Of Cleaning Modes

iRobot Roomba 770 has 3 cleaning modes, the cleaning modes supported by robot vacuum cleaners varies depending on the design of the robot vacuum.

The iRobot Roomba 981, having only 4 has more modes than the iRobot Roomba 770 by 1 Robot vacuum manufacturers offer different cleaning modes to provide users with flexibility and adaptability to various cleaning challenges.

Warranty Period

iRobot Roomba 770 has a period of 1 year, warranty periods for robot vacuums typically range from 1 - 2 years, however some higher-end brands may offer longer warranties.

iRobot Roomba 981, at 1 year has the same warranty period as that of iRobot Roomba 770. When thinking of buying a robot vacuum cleaner, it's important to read and understand the warranty terms and conditions, as well as any limitations or exclusions that may apply.

iRobot Roomba 981
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Design Features

Dustbin Capacity

The iRobot Roomba 770's dustbin capacity is at 0.5L, dustbin capacity determines how much dust, dirt, and pet hair the robot vacuum holds before it can be emptied.

iRobot Roomba 981, at 0.5L has the same dustbin capacity as the iRobot Roomba 770 The dustbin capacity varies widely among different robot vacuum models, and the size 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 770 adjusts 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

Many robot vacuum cleaners are equipped with sensors and indicators to alert users when the dustbin is full and needs to be emptied. iRobot Roomba 981 supports this feature, which prevents the robot vacuum from getting clogged thus performance will be maintained as soon as the bin is emptied.

Weight

The iRobot Roomba 770 weighs 3.8kg, robot vacuums are commonly designed to be lightweight and compact for easy maneuverability and carrying around.

iRobot Roomba 981, at 4kg weighs more than the iRobot Roomba 770 with a difference of 0.2kg. It's advisable to take in consideration the weight of the vacuum when getting a model, and that's if you plan to carry it up and down stairs

Width

iRobot Roomba 770 has a width of 353mm, often referred to as its cleaning path width, refers to the width of the area that it can properly clean in one go. The width of a robot vacuum is key as it can affect its efficiency and the time it takes to clean a space

The iRobot Roomba 981, at 351mm measures less in width than the iRobot Roomba 770 by 2mm. A wider cleaning path can cover more ground in a single pass, reducing the time it takes to clean a room.

Height

iRobot Roomba 770's height measures 91mm, 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 981, at 92mm measures more in height than the iRobot Roomba 770 with a difference of 1mm. When selecting a robot vacuum, make sure 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 operate on a single charge. Battery capacity is measured in milliampere-hours (mAh), iRobot Roomba 981's battery power is 3,000mAh

Operating Time

The operating time of the iRobot Roomba 770 refers to the amount of time the vacuum can clean continuously on a single battery charge before it needs to be recharged. iRobot Roomba 770's operating time is 2h

iRobot Roomba 981, at 2h has the same operating time as the iRobot Roomba 770 Always plan cleaning cycles around the vacuum's operating time to maximize efficiency and prevent "incomplete work" between charge intervals.

Charge Time

iRobot Roomba 770 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 981, at 3h has the same charge time as the iRobot Roomba 770. Charge time is an important factor to consider when choosing a robot vacuum, since it determines how long you'll need to wait before the vacuum begins 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 770 has a power consumption of 30W, power is often measured in watts (W) and changes among different robot vacuum models based on several consuption factors.

Has Auto-Off

Auto-off is a feature designed to automatically turn off the vacuum after it has completed an operation or when specific conditions occur. iRobot Roomba 981 has an auto-off feature, which is useful for energy efficiency and battery preservation.

Has Dirt Sensor

iRobot Roomba 770 has a dirt sensor, dirt sensors are designed to detect the concentration of dirt, dust, or debris in the room being cleaned and can be used to adjust the vacuum's cleaning behavior during cleaning cycle.

iRobot Roomba 981
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Other Features

Support A Mobile Application

iRobot Roomba 981 supports a smartphone app, that allows you to 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 trapped during cleaning. Robot vacuums such as the iRobot Roomba 770 are equipped with various sensors and technologies to navigate around obstacles and avoid getting trapped, however the effectiveness of this feature varies among different models.

Both the iRobot Roomba 981 and iRobot Roomba 770 have the "anti-stuck" feature, but clearing clutter, ensuring proper cable management, and creating clear paths for the vacuums helps to further eliminate the chances of becoming stuck while cleaning.

Supports Virtual Barriers

Virtual barriers are typically set up and managed through the robot vacuum's mobile app, similar to no-go zones, these barriers are designed to help you control and restrict where the robot vacuum can and cannot go during cleaning.

Has Route Mapping

iRobot Roomba 981 has a route mapping feature that enables it to create a map of your space and plan efficient cleaning routes. This mapping capability enhances the vacuum's ability to clean effectively and systematically.

Has Voice Prompts

Voice prompts are notifications that the vacuum emits to provide you information on the different states of the vacuum. iRobot Roomba 981 supports this feature

Supports Auto Docking

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

Both iRobot Roomba 981 and iRobot Roomba 770 support this feature, considered a convenient feature because it ensures that the robot vacuum maintains its charge and readiness for cleaning with little or no manual intervention.

Has Anti-Fall Sensor

Modern robot vacuum cleaners such as iRobot Roomba 770 come equipped with an "anti-fall" feature. This feature is designed to prevent the robot vacuum from falling off stairs, ledges, or other elevated surfaces, thus its safety while cleaning.

This safety feature that is also available on the iRobot Roomba 981 is key in mitigating accidents and protecting the robot vacuum from damage. It gives you peace of mind knowing that the vacuum will not fall down a flight of stairs during its cleaning cycle.

Can Be Scheduled

iRobot Roomba 770 has this convenient feature, which allows you to set certain days or times of day for the robot vacuum to automatically start working.

This feature in robot vacuums is particularly useful in maintaining a consistently clean space with little or no manual intervention. iRobot Roomba 981 too can be scheduled.

Has A Remote Control

iRobot Roomba 770 has a remote control, allowing you to control the vacuum's direction and functions from a distance.

Supports Wi-Fi

iRobot Roomba 981 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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