Robotic Vacuums

Review iRobot Roomba 877 Robotic Vacuum Cleaner

Judy D. Evans
Written by Judy D. Evans


Pet hair, crumbs, dirt, and daily dust are always building up, so keeping your home clean can feel like a never-ending task.

That’s why iRobot brings you the Roomba® family of vacuuming robots. Combining a powerful cleaning system with intelligent sensors, our robots move seamlessly through your home, adapting to the surroundings to thoroughly vacuum your floors — leaving you with more time for what’s important.

Moves seamlessly through your home

Roomba® vacuuming robots are powered by a full suite of smart sensors that automatically guide the robot around your home. The robot makes 60 decisions every second, navigating under furniture and around clutter to thoroughly clean your floors.

Keep floors dirt-free with this iRobot Roomba robot vacuum. Its AeroForce three-stage cleaning system agitates, extracts and suctions to eliminate stubborn dirt, and its iAdapt navigation feature uses multiple sensors for precise mapping and vacuuming. This iRobot Roomba robot vacuum includes a Virtual Wall Lighthouse beacon device for automated room-to-room cleaning.

The iRobot Roomba 877 delivers up to 5x the air power and requires less maintenance. It’s just over 3.6 inches tall, yet it can tackle any room type. Just press “clean” and Roomba will deliver, easily cleaning areas under the bed and furniture.

Automatically detects dirt

Dirt Detect™ sensors alert the robot to spend more time cleaning concentrated areas of debris. It’s great for high-traffic areas and those occasional messes.

Sweeps corners and along walls

Designed to sweep corners and along walls, the robot catches dirt, dust, and hair where they hide.

Navigates seamlessly

Guided by advanced navigation software, the robot moves effortlessly around obstacles and under furniture, adapting its path to clean your floors more thoroughly.

Cleans floors in three stages

Our powerful 3‑Stage Cleaning System with Edge-Sweeping Brush is designed to loosen, lift, and suction dirt and debris from all floor types.

Customize cleaning preferences

Select cleaning preferences such as power settings, number of cleaning passes, final edge clean, and more.*

AeroForce Suction

If you’re familiar with any of the robotic vacuums in iRobot’s 600 or 700 series, you know that they produce excellent suction. With the Roomba 877, iRobot has enhanced the suction of its previous models, making the 877 five times stronger.

Since the suction inlet directs dirt and debris into a single, direct path, loose particles won’t find their way to the motor or other essential components. Therefore, the Roomba 877 will last for years to come without degraded performance.

Anti-Tangle Brushes

One common complaint among robotvac owners revolves around how often the vacuum’s brushroll becomes tangled by strands of hair. iRobot addresses this issue with its two tangle-reducing brushrolls. These brushrolls rotate toward each other to pick up as many debris as possible whether the robot vacuum is cleaning your linoleum floor or your carpet. When hair, thread or tassels get caught in the mix, the robot stops itself until it breaks free from the offending item.

There is also one brush located on the side of the robot vacuum. This brush spins at a 27-degree angle to sweep dirt toward the suction inlet and clear dust from baseboards. Thanks to the Roomba 877’s ability to change the height of its head according to the floor it’s cleaning, the robotic vacuum always gives a thorough clean.

Simple Controls

Not everyone wants to control their appliances via a smart home assistant or a smartphone app. If you’re one who prefers appliances to have streamlined controls, you’ll feel at ease with the Roomba 877. All of its controls are located on the robo vac itself. From the control panel, you can begin an auto-clean session, program a schedule and make the robot spot clean a small mess.

Product Features:

Keeps carpets and hard floors looking great

Care for surfaces of all types with flexible cleaning options. Automatically adjusts to vacuum all floor types.

Powerful 3-stage cleaning system

The patented system loosens, lifts, and suctions dirt, dust, pet hair and even large debris like cereal from your floors, with up to 5x more air power.

Captures 99% of allergens, pollen, and particles

Traps particles as small as 10 microns with the AeroForce High-Efficiency Filter.

Room-to-room cleaning

Navigates to vacuum in up to 2 rooms with the included Virtual Wall Lighthouse Beacon.

Seamless navigation

A full suite of sensors enable Roomba to seamlessly navigate around obstacles, under furniture, and sweep along wall edges, while avoiding stairs and other drop offs.

Automatic docking and recharging

After your floors are clean, the robot returns to the docking station to charge.

Convenient scheduling

Preset to clean on a schedule, up to 7x per week, or just press CLEAN.

Tangle-free brushes

Patented tangle-free brushes reduce maintenance and handle pet hair with ease.

3.6″ low profile design

Cleans under furniture, beds and toe kicks.

Lightweight construction

Use handle for easy carrying from room to room.

What’s in the box?

iRobot Roomba 877

  • Self-charging Home Base
  • Virtual Wall unit
  • Filter
  • Battery


  • High-Efficiency Filters
  • Tangle-Free Debris Extractors
  • AeroForce 3-Stage Cleaning System
  • 3x Battery Life
  • Concentrated Cleaning
  • Virtual Wall Technology
  • iAdapt Multi-Room Navigation
  • Smart Schedules
  • Room to Room Cleaning
  • 5x Stronger Power


Sometimes Cleans Randomly

No Mobile Application


This product excels at moving messes from one area to another, going to places it has already done or shouldn’t, knocking things over, and destroying all cords it comes across. It clogs up almost immediately and then starts moving messes around. It is topnotch at taking hair from one area and then placing it underneath tables and doors. And if that isn’t enough it breaks down within weeks of using it.

About the author

Judy D. Evans

Judy D. Evans

Spent 2001-2005 developing strategies for cleaning company formation in Tampa, FL. Spent college summers lecturing about marketing with no outside help. Spent childhood building my own cleaning company in Pensacola, FL.

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