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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The vacuum's ability to generate a map of its cleaning space is one of the commonly asked-for features. This map allows the robot to "understand" the layout of the desired space. Mapping and navigation can be used for several purposes, for example the iRobot Roomba j7 having the mapping feature can provide efficient cleaning in the mapped-out areas keeping out of those that are not.

iRobot Roomba 621 also has the mapping and navigation feature, navigation states 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 areas to be cleaned ignoring those that aren't. iRobot Roomba j7 has an obstacle sensor, this serves the purpose of detecting and identifying objects in the robot's way, this allwos 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 comprehensive understanding of its surroundings, enabling it to navigate around furniture, walls, and other objects when cleaning a room thus avoiding damage to both the robot and its obstacles. No-go zones is a feature of many advanced robot vacuum cleaners and the iRobot Roomba j7 supports this feature. These zones are basicaaly digital boundaries or restricted areas that you can set up preventing the robot from accessing specific areas or rooms during its cleaning cycle.

Most modern robot vacuum cleaners such as the iRobot Roomba j7 are designed to work with Amazon Alexa, which implies that they can be integrated with the Amazon Echo ecosystem and programmed using voice commands. iRobot Roomba j7 is compatible with Google Assistant, enabling you to control it using voice commands through Google Home devices or the Google Assistant app installed on smartphones and tablets. iRobot Roomba j7 has 3 cleaning modes, the number of cleaning modes supported by robot vacuums varies widely 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 various cleaning scenarios. iRobot Roomba j7 has a period of 1 year, this typically range from 1 year to 2 years, however some higher-end brands may give longer warranties. The 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 essential 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 indicates how much dust, debris, and pet hair the vacuum can hold before it can be emptied. iRobot Roomba 621, at 0.5L carries less dirt than the iRobot Roomba j7 by only 0.1L The dustbin capacity can vary widely among robot vacuum models, and the size you choose should depend 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 commonly designed to be lightweight and compact for easy maneuverability and carrying around.

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 vacuum when selecting 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, is the width of the area that the robot vacuum can effectively clean in a single pass. The width of a robot vacuum is important as it can affect its efficiency and the time it takes to clean a room The 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, shortening the time it takes to clean a room. iRobot Roomba j7's height measures 90mm, here you are looking at the measure from the bottom to its highest point. Height is an important consideration, especially if you have furniture with limited clearance in your home.

iRobot Roomba 621, at 92mm measures more in height than the iRobot Roomba j7 by 2mm. When choosing a robot vacuum, ensure 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 by 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 with a difference of only 3h.

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. 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 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 operations. iRobot Roomba j7 has a dirt sensor, dirt sensors are designed to detect the availability of dirt, dust, or debris in the area being cleaned and based on their readings adjust the vacuum's cleaning behavior during cleaning cycle. You may want to consider buying either the iRobot Roomba 621 or iRobot Roomba j7 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 room.

Self-emptying bins or automatic dirt disposal systems like the iRobot Roomba j7, are modern robot vacuum models that have a convenient feature to empty their dustbins automatically. iRobot Roomba j7 supports a smartphone app, that allows you to control and monitor the vacuum remotely through your smartphone or tablet. This feature in robot vacuum cleaners is intended to reduce the likelihood of the robot vacuum getting trapped while cleaning.

Robot vacuums such as the iRobot Roomba j7 are equipped with various sensors and technologies to navigate around obstacles and avoid getting stuck, however the effectiveness of this feature varies 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 eliminate the chances of becoming stuck during 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 during cleaning.

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

Auto-docking is a feature in robot vacuum cleaners that indicates the vacuum's ability to autonomously return to its docking station when predetermined conditions are met such as getting work done, battery running low, or any malfunction. Both iRobot Roomba 621 and iRobot Roomba j7 support this feature, considered a convenient feature because it ensures that the robot vacuum keeps its charge and readiness for cleaning with little or no manual intervention. Most robot vacuum cleaners such as iRobot Roomba j7 come equipped with an "anti-fall" feature.

This feature is intended to save 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 621 is essential in preventing accidents and keeping 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.

iRobot Roomba j7 has this convenient feature, which allows you to set certain days or times of day for the robot vacuum to automatically start working. The scheduling feature in robot vacuums is particularly useful in keeping a consistently clean home without the need for manual intervention. iRobot Roomba 621 too allows scheduling.

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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