Home Robot Vacuum Cleaners Irobot Roomba J7 Vs. Irobot Roomba 621

Irobot Roomba J7 Vs. Irobot Roomba 621 Features Review

14 minute read   Last updated on Aug 18, 2024
iRobot Roomba j7

iRobot Roomba j7

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Key features of the iRobot Roomba j7

Overall Score 6.4

  • Is Self-Emptying
VS
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

A summary by feature comparison

Category Features iRobot Roomba j7 iRobot Roomba 621
COMMONLY ASKED FOR FEATURES can clean all floor types
has mapping and navigation
has an obstacle sensor
supports no-go zones
works with alexa
compatible with google assistant
number of cleaning modes 3only 3only
warranty period 1year 1year
DESIGN FEATURES has included washable filters
dustbin capacity 0.6L 0.5L
automatically adjusts its height
indicates when full
weight 3.4kg 4.3kg
width 340mm 340mm
height 90mm 92mm
CLEANING PERFORMANCE AND POWER FEATURES battery power 4,500mAh
operating time 1.4h 1.5h
charge time 6h 3h
operating power consumption 33W
has overheating indicator
has auto-off
has dirt sensor
OTHER FEATURES is self-emptying
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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A 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 "understand" the layout of the desired space. Mapping and navigation can be used for different situations, for example the iRobot Roomba j7 having the mapping feature can provide efficient cleaning in the mapped-out areas without accessing those that are not.

The iRobot Roomba 621 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 navigate to the mapped-out spaces to be cleaned leaving out those that aren't. iRobot Roomba j7 has an obstacle sensor, this serves the purpose of detecting and identifying objects in the robot's route, allowing it to navigate around them thus avoiding collisions.

Also, the iRobot Roomba 621 has an obstacle sensor, obstacle sensors work together to provide the robot vacuum with a better understanding of its surroundings, 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. No-go zones is a feature found on many robot vacuum cleaners and the iRobot Roomba j7 is one of them. These zones are basicaaly digital boundaries or restricted areas that you can set up preventing the robot from entering specific areas or rooms during its cleaning cycle.

Most modern robot vacuum cleaners such as the iRobot Roomba j7 are built to work with Amazon Alexa, which implies that they can be integrated with the Amazon Echo ecosystem and controlled using voice commands. iRobot Roomba j7 is compatible with Google Assistant, allowing you to control it using voice commands via Google Home devices or the Google Assistant app found on smartphones and tablets. The iRobot Roomba j7 has 3 cleaning modes, the cleaning modes supported by robot vacuum cleaners varies depending on the make and model of the robot vacuum.

iRobot Roomba 621, having only 3 has the same number of cleaning modes as the iRobot Roomba j7 Robot vacuum manufacturers may offer different cleaning modes to provide users with flexibility and adaptability to different cleaning floors. The iRobot Roomba j7 has a period of 1 year, this typically range from 1 year to 2 years, however some higher-end models may give longer warranties. iRobot Roomba 621, at 1 year has the same warranty period as that of iRobot Roomba j7.

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 j7's dustbin capacity is at 0.6L, dustbin capacity determines how much dust, dirt, and pet hair the robot vacuum can hold before it can be emptied. The iRobot Roomba 621, at 0.5L carries less dirt than the iRobot Roomba j7 with a difference of only 0.1L The dustbin capacity varies widely among different robot vacuum models, and the capcity you choose should be based on your cleaning needs and the size of the area you want to clean.

Many robot vacuum cleaners are equipped with sensors and indicators to notify users when the dirt collection container is full and needs to be emptied. iRobot Roomba j7 supports this feature, which prevents the robot vacuum from getting clogged thus performance will be maintained as soon as the bin is emptied. iRobot Roomba j7 weighs 3.4kg, robot vacuums are generally designed to be lightweight and compact to easily get around and carrying around.

The iRobot Roomba 621, at 4.3kg weighs more than the iRobot Roomba j7 by 0.9kg. It's advisable to consider the weight of the robot vacuum when choosing a model, especially if you plan to carry it up and down stairs iRobot Roomba j7 has a width of 340mm, often referred to as its cleaning path width, refers to the width of the area that it can effectively 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 space iRobot Roomba 621, at 340mm has the same width as that of iRobot Roomba j7.

A wider cleaning path can cover more ground in a single pass, reducing the time it takes to clean a room. iRobot Roomba j7's height measures 90mm, here you are considering the measurement from the bottom to its highest point. Height is an important consideration, especially if you have furniture with limited clearance in your home.

The iRobot Roomba 621, at 92mm measures more in height than the iRobot Roomba j7 by 2mm. When selecting a robot vacuum, make sure that the robot vacuum can fit under the furniture and navigate effectively in your living space without getting stuck or causing damage. The operating time of a robot vacuum cleaner refers to the time the vacuum can clean continuously on a single battery charge before it needs to be recharged.

iRobot Roomba j7's operating time is 1.4h The iRobot Roomba 621, at 1.5h lasts more than the iRobot Roomba j7 with a difference of 0.1h Always plan cleaning cycles around the vacuum's operating time to maximize efficiency and prevent "incomplete work" between charge intervals. iRobot Roomba j7 has a charge time of 6h, 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. The iRobot Roomba 621, at 3h spends lesser time charging than the iRobot Roomba j7 by only 3h.

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 begins its next cleaning cycle. Auto-off is a feature designed to automatically turn off the vacuum after it has completed a cleaning cycle or when specific conditions occur. iRobot Roomba j7 has an auto-off feature, which is useful for energy efficiency and battery preservation.

Also, iRobot Roomba 621 supports 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 operations. iRobot Roomba j7 has a dirt sensor, dirt sensors are designed to detect the concentration of dirt, dust, or debris in the space being cleaned and can be used to adjust the vacuum's cleaning behavior during operation. You may want to consider buying either the iRobot Roomba 621 or iRobot Roomba j7 If you value the ability to automatically adjust the cleaning modes of the robot vacuum based on the level of dirt and debris in your room.

Self-emptying bins or automatic dirt disposal systems like the iRobot Roomba j7, are advanced robot vacuum models that have the ease of use feature to empty their dustbins automatically. iRobot Roomba j7 supports a smartphone app, through which you can control and monitor the vacuum remotely through your smartphone or tablet. This feature in robot vacuum cleaners is designed to reduce the likelihood of the robot vacuum becoming stuck during cleaning.

Robot vacuums such as the iRobot Roomba j7 are equipped with various sensors and technologies to move around obstacles and avoid getting stuck, but the effectiveness of this feature can vary among different models. Both the iRobot Roomba 621 and iRobot Roomba j7 have the "anti-stuck" feature, however clearing clutter, ensuring proper cable management, and creating clear paths for the vacuums can help further reduce the chances of becoming stuck while cleaning. Virtual barriers are typically set up and managed via the robot vacuum's mobile app, similar to no-go zones, these barriers are setup to enable you control and restrict where the robot vacuum can and cannot go while cleaning.

iRobot Roomba j7 has a route mapping feature which enables it to generate a map of your space and schedule efficient cleaning routes. This mapping capability improves the vacuum's ability to clean effectively and systematically. Route mapping is a valuable feature as it makes it possible for robot vacuums such as the iRobot Roomba 621 to adapt to the layout of your home to work more efficiently and reduce the chance of missing certain spots.

Auto-docking is a feature that refers to the vacuum's ability to return to its docking station when predetermined conditions are met such as done with cleaning, battery running low, or any malfunction. Both iRobot Roomba 621 and iRobot Roomba j7 support this feature, considered a convenient feature because it makes sure that the robot vacuum maintains its charge and readiness for cleaning without requiring manual intervention. Most robot vacuum cleaners such as iRobot Roomba j7 come having 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 while cleaning. This safety feature that is also available on the iRobot Roomba 621 is key in preventing accidents and protecting the robot vacuum from damage. It gives you peace of mind knowing that the vacuum will not fall off a ledge during its cleaning cycle.

iRobot Roomba j7 has this convenient feature, which enables you to set specific days or times of day for the robot vacuum to start cleaning your space. The scheduling feature in robot vacuums is particularly useful in maintaining a consistently clean space with little or no manual intervention. iRobot Roomba 621 too can be scheduled.

iRobot Roomba j7 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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