iRobot Roomba 621 cleans all floor types, this comes in handy, as different rooms within your home may have different types of flooring i.e. carpets. If a robot vacuum cleaner is said to be as being able to clean all types of floors, it means that the robot vacuum is capable to effectively clean a wide range of flooring materials without any limitations.
A robot vacuum's ability to create 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, e.g.
the iRobot Roomba 621 having the mapping feature can provide efficient cleaning in the mapped-out areas keeping out of those that are not. iRobot Roomba i3 also has the mapping and navigation feature, navigation states 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, this 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 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. iRobot Roomba 621 has 3 cleaning modes, the number of cleaning modes supported by robot vacuum cleaners varies widely depending on the design of the robot vacuum.
iRobot Roomba 621 has a period of 1 year, this typically range from 1 year to 2 years, however some higher-end brands may offer longer warranty periods. iRobot Roomba i3, at 1 year
has the same warranty period as that of iRobot Roomba 621. When thinking of buying a robot vacuum cleaner, it's essential to read and understand the warranty terms and conditions, alongside 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 cleaned to maintain 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 requires to be emptied. The iRobot Roomba i3, at 0.4L
carries less dirt than the iRobot Roomba 621 with a difference of only 0.1L
The dustbin capacity varies widely among different robot vacuum models, and the size you choose should be based 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 can adjust its height to match this requirement, 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. iRobot Roomba 621 weighs 4.3kg, robot vacuums are generally designed to be lightweight and compact for easy maneuverability and carrying around.
The iRobot Roomba i3, at 4.3kg
has the same weight as the iRobot Roomba 621. It's advisable to take in consideration the weight of the robot vacuum when selecting a model, especially if you plan to carry it up and down stairs
iRobot Roomba 621 has a width of 340mm, aslo known as its cleaning path width, refers to the width of the area that the robot vacuum 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 room
iRobot Roomba i3, at 337mm
measures less in width than the iRobot Roomba 621 by 3mm.
A wider cleaning path can cover more ground in a single pass, shortening the time it takes to clean a room. iRobot Roomba 621's height measures 92mm, here you are looking at the measure from the bottom of the robot vacuum to its highest point. Height is a key consideration, especially if you have furniture with limited clearance in your home.
The iRobot Roomba i3, 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. 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
iRobot Roomba i3, 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 beneficial if you have a large home or if you would like the robot vacuum to complete cleaning cycles with less 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 return to its charging dock for recharging. iRobot Roomba 621's operating time is 1.5h
iRobot Roomba i3, at 1.25h
spends less time than the iRobot Roomba 621 with a difference of only 0.25h
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. The iRobot Roomba i3, at 5h
charges for longer than the iRobot Roomba 621 with a difference of 2h. 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.
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 can vary among different robot vacuum models based on several consuption factors. An overheating indicator in a robot vacuum serves several important purposes, making it a valuable safety feature.
It helps protect the iRobot Roomba 621 from damage by sensing when key components, such as the motor or battery, are operating at temperatures that could cause harm. This feature is 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 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. iRobot Roomba 621 has a dirt sensor, dirt sensors are designed to detect the availability of dirt, dust, or debris in the room being cleaned and based on their readings adjust the vacuum's cleaning behavior during cleaning cycle. Problem area cleaning enables you to command a robot vacuum to focus on cleaning a specific spot in your space, the iRobot Roomba 621 supports this, which can be really useful for dealing with particular area messes or busy areas.
iRobot Roomba 621 has carpet detection, this enables the vacuum to identify and adapt to all kinds of floor surfaces, specifically recognizing when it moves from hard floors like tile to carpeted areas. This feature in robot vacuum cleaners is intended to eliminate the likelihood of the robot vacuum becoming trapped during cleaning. Robot vacuums such as the iRobot Roomba 621 are equipped with various sensors and technologies to navigate around obstacles and avoid getting stuck, but the effectiveness of this feature can vary among different models.
Both the iRobot Roomba i3 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 becoming stuck during cleaning. iRobot Roomba 621 has a route mapping feature which enables it to generate a map of your home 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 enables robot vacuums such as the iRobot Roomba i3 to adapt to the layout of your home to work more efficiently and minimize the possibility of missing certain spots. Auto-docking is a feature in robot vacuum cleaners that refers to 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 i3 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.
Most robot vacuum cleaners such as iRobot Roomba 621 come equipped with an "cliff detection" feature. This feature is designed 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 i3 is essential 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 621 has this convenient feature, which enables you to set specific 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 home without the need for manual intervention.
iRobot Roomba i3 too allows scheduling.
