Home Robot Vacuum Cleaners Irobot Roomba 621 Vs. Irobot Roomba I3 Evo

Irobot Roomba 621 Vs. Irobot Roomba I3 Evo Features Review

15 minute read   Last updated on Aug 18, 2024
iRobot Roomba i3 Evo

iRobot Roomba i3 Evo

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Key features of the iRobot Roomba i3 Evo

Overall Score 6.7

  • Battery Power of 1800 mAh
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 i3 Evo 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 0.5L 0.5L
automatically adjusts its height
indicates when full
weight 6.8kg 4.3kg
width 133mm 340mm
height 36mm 92mm
CLEANING PERFORMANCE AND POWER FEATURES battery power 1,800mAh 4,500mAh
operating time 1.5h 1.5h
charge time 2h 3h
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
has voice prompts
supports auto docking
has anti-fall sensor
can be scheduled
supports wi-fi
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iRobot Roomba 621 can clean all floor types, this feature is essential, as different rooms inside your home may have different types of flooring i.e. carpets. If a robot vacuum cleaner is advertised as being able to clean all floor types, this means that the vacuum is capable to clean most flooring materials without any limitations.

The vacuum's ability to generate a map of its cleaning area is one of the commonly asked-for features. This map allows the robot to keep a record of the layout of the space. Mapping and navigation can be used for several purposes, for example the iRobot Roomba 621 having the mapping feature can dedicate efficient cleaning in the mapped-out areas without accessing those that are not.

The iRobot Roomba i3 Evo also has the mapping and navigation feature, navigation involves how the robot vacuum moves around the space. Mapping and navigation often go hand in hand to help the vacuum move to the mapped-out areas to be cleaned ignoring those that aren't. iRobot Roomba 621 has an obstacle sensor, such a sensor serves the purpose of detecting and identifying obstacles in the robot's way, this allwos it to navigate around them and avoid collisions.

Also, the iRobot Roomba i3 Evo 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 preventing damage to both the robot and its obstacles. The iRobot Roomba 621 has 3 cleaning modes, the cleaning modes offered by robot vacuums can vary depending on the design of the robot vacuum. The iRobot Roomba i3 Evo, having only 3 has the same number of cleaning modes as the iRobot Roomba 621 Robot vacuum manufacturers may offer different cleaning modes to provide users with flexibility and adaptability to various cleaning surfaces.

The iRobot Roomba 621 has a period of 1 year, warranty periods for robot vacuums typically range from 1 year to 2 years, however some higher-end models may offer longer warranty periods. The iRobot Roomba i3 Evo, at 1 year has the same warranty period as that of iRobot Roomba 621. 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 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. iRobot Roomba 621's dustbin capacity is at 0.5L, dustbin capacity determines how much dust, debris, and pet hair the robot vacuum holds before it needs to be emptied. iRobot Roomba i3 Evo, at 0.5L has the same dustbin capacity as the iRobot Roomba 621 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.

Different floor types require a robot vacuum to be at a given ground clearance so as to optimize performance. iRobot Roomba 621 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 make sure the brushes make good contact. The iRobot Roomba 621 weighs 4.3kg, robot vacuums are commonly designed to be lightweight and compact to easily get around and carrying around.

The iRobot Roomba i3 Evo, at 6.8kg weighs more than the iRobot Roomba 621 by 2.5kg. It's important to consider the weight of the vacuum when getting a model, especially if you plan to carry it up and down stairs iRobot Roomba 621 has a width of 340mm, often referred to as its cleaning path width, is the width of the area that the robot vacuum can properly clean in one go. The width of a robot vacuum is important as it can affect its efficiency and the duration it takes to clean a room iRobot Roomba i3 Evo, at 133mm measures less in width than the iRobot Roomba 621 with a difference of 207mm.

A wider cleaning path can cover more ground in a single pass, reducing the time it takes to clean a room. iRobot Roomba 621's height measures 92mm, here you are looking at the measurement from the bottom to its highest point. Height is an important consideration, especially if you have obstacles with low clearance in your home.

The iRobot Roomba i3 Evo, at 36mm measures less in height than the iRobot Roomba 621 with a difference of 56mm. When selecting 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. 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 typically measured in milliampere-hours (mAh), iRobot Roomba 621's battery power is 4,500mAh iRobot Roomba i3 Evo, at mAh1,800 has less battery power than the iRobot Roomba 621 with a difference of only A bigger capacity usually means longer battery life which can be of advantage if you have a large room or if you would like the robot vacuum to complete cleaning cycles without frequent interruptions to recharge. The operating time of the iRobot Roomba 621 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 iRobot Roomba i3 Evo, 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.

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 i3 Evo, 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.

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 typically measured in watts (W) and changes among different robot vacuum models based on several consuption factors. An overheating indicator in a robot vacuum serves many important purposes, making it a very important safety feature.

It helps protect the iRobot Roomba 621 from damage by detecting when critical components, such as the motor or battery, are operating at temperatures that are dangerous. 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 621 has an auto-off feature, which is useful for energy efficiency and battery preservation.

Also, iRobot Roomba i3 Evo supports this feature, overall, the auto-off feature in a robot vacuum is a valuable addition that in a way promotes energy efficiency, prolongs the vacuum's lifespan, enhances safety, and adds convenience to the cleaning process. 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 i3 Evo 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 space.

Problem area cleaning enables you to command a robot vacuum to focus on cleaning a particular spot in your home, the iRobot Roomba 621 supports this, which can be really useful for addressing localized messes or high-traffic areas. The iRobot Roomba i3 Evo also supports this feature, the spot cleaning feature is a convenient way to address specific area messes or busy areas without running a full cleaning cycle for your entire space. iRobot Roomba 621 has carpet detection, which allows the vacuum to identify and adapt to all kinds of floor surfaces, specifically recognizing when it transitions from hard floors like tile to carpets.

This feature in robot vacuum cleaners is intended to eliminate the likelihood of the robot vacuum getting trapped during cleaning. Robot vacuums such as the iRobot Roomba 621 are equipped with various sensors and technologies to move around obstacles and avoid getting trapped, but the effectiveness of this feature can vary among different models. Both the iRobot Roomba i3 Evo and iRobot Roomba 621 have the "anti-stuck" feature, however clearing clutter, ensuring proper cable management, and creating clear paths for the vacuums helps to further eliminate the chances of getting stuck during cleaning.

iRobot Roomba 621 has a route mapping feature that enables it to generate a map of your space and plan efficient cleaning routes. This mapping capability enhances the vacuum's ability to work effectively and systematically. Route mapping is a valuable feature as it enables robot vacuums such as the iRobot Roomba i3 Evo to adapt to the layout of your home to clean more efficiently and reduce the possibility 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 certain conditions are met such as done with cleaning, battery running low, or any malfunction. Both iRobot Roomba i3 Evo and iRobot Roomba 621 support this feature, considered a convenient feature because it makes sure that the robot vacuum keeps its charge and readiness for cleaning without requiring manual intervention. Modern robot vacuum cleaners such as iRobot Roomba 621 come equipped with an "cliff detection" feature.

This feature is designed to save the robot vacuum from falling off stairs, ledges, or other elevated surfaces, ensuring its safety during operation. This safety feature that is also available on the iRobot Roomba i3 Evo is essential in mitigating accidents and protecting 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.

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.

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