ROOMBA 770vs.ROOMBA 870

About iRobot

iRobot was founded in 1990 by Massachusetts Institute of

Technology roboticists with the vision of making practical

robots a reality.

In 2013, iRobot generated $487 million in revenue and

employed more than 500 of the robot industry’s top

professionals, including mechanical, electrical and software

engineers and related support staff. iRobot stock trades on

the NASDAQ stock market under the ticker symbol IRBT.

iRobot’s corporate headquarters are located in Bedford,

Mass. The company also has offices in California, the United

Kingdom, China and Hong Kong. 1

Why Roomba?

Roomba cleans your floors like no vacuum

has ever cleaned before - removing dirt,

dust, pet hair and other debris all on its own.

Using iAdapt® Responsive Navigation

Technology, Roomba vacuums every section

of your floor multiple times, getting under

and around furniture and along wall edges,

detecting dirt, avoiding stairs and navigating

through loose wires to clean more of your

room, more thoroughly.

2

Meet the 700 Series

The Roomba models in the 700 series have the following features & accessories:

 iAdapt Cleaning Technology

 Persistent Pass Cleaning

 Compact Home Base

Aerovac Series 2 Dust Bin

Auto Virtual Walls 

HEPA Filter

IR Remote Control

Dirt Detect Series 2 Technology

 Full Bin Detection

 Room-to-room navigation

Capacitive Touch Control panel

 Virtual Wall Lighthouses (to replace Auto Virtual Walls)    

Wireless Command Center

3 Virtual Wall Lighthouses™ (to replace Auto Virtual Walls®) Storage/Carrying Case

Click Here for More Details

Roomba 760 Roomba 770

Roomba 770 Roomba 790

3

Meet the 800 Series

New Features

• AeroForce Extraction – up

to 5X more effective at

picking up dirt

• Larger Dust Bin

• Extended Battery – 2X as

many cleaning cycles before

recharge

Roomba 870

Roomba 870

4

Comparison

770 vs. 870

About

Roomba 700 Series

Roomba 700 Series robots use the

revolutionary Dirt Detect with Persistent Pass

Cleaning.

Proven to remove up to 50% more dirt, dust,

hair and debris than previous Roomba models

and has dual HEPA filters standard.

Features unique iAdapt Responsive Navigation

Technology that ensures Roomba cleans more

of the floor, more thoroughly than other

vacuum cleaning robot brands.

Roomba 800 Series

Uses iRobot’s breakthrough cleaning

system, AeroForce™, which improves

pick up performance by up to 50%.

Innovative tangle-free debris extractors

require virtually no maintenance with

AeroForce Extractors.

6

Specifications

20.5 x 5.5 x 16.5 inches

19 x 5 x 21.5 inches

Package dimension

12.9 lbs14.5 lbs Package weight

13.9 inches in diameter, 3.6

inches in height

13.9 inches in diameter, 3.6 inches in height 

Robot dimension

8.4 lbs8.4 lbs Robot weight

Roomba 770 870

Cleaning mode

3 cleaning modes:

Clean Mode – Roomba automatically

calculates the room size and adjusts its

cleaning time appropriately.

Spot Mode – Roomba will spiral approximately

3 feet (1 meter) in diameter and then spiral

back to where it started – an intense, localized

clean for those quick fixes.

Scheduled Cleaning Mode – Roomba leaves

its Home Base, cleans, and then returns to

recharge when it’s done.

Roomba 770 & 870

~3 ft (1 m)

8

Persistent Pass Cleaning Method

 Employs a back and forth cleaning pattern to

apply elbow grease in areas where it senses

excessive dirt

Cleaning- features

Tangle-Free AeroForce™ Extractors

Dual counter-rotating extractors incorporate a durable rubber

tread design that grabs and breaks down dirt and debris from

any floor type.

Airflow Accelerator

The accelerator brings the vacuum power right down to the

floor surface, creating a sealed channel that concentrates the

airflow, drawing in more debris.

High-Efficiency Vacuum

A compact and efficient high-powered motor provides a five

times improvement in air power than previous Roomba

generations.

Roomba 770 Roomba 870

Virtual Wall (Both 770 and 870 have 2)

Virtual Walls create an invisible barrier that your Roomba won’t

cross. That makes it easy to confine it to a particular room or

area, and prevent it from getting too close to anything delicate

or dangerous.

Each Virtual Wall needs two C alkaline batteries (not

included).

You can set the Virtual Walls to block an opening of up to 7

feet (2 meters). It creates a cone shape barrier, so the

beam gradually gets wider.

For best results, place the Virtual Wall on the outside of the

doorway you want to block. Point the arrows on the top

towards the opening.

Virtual Wall mode: Roomba will not cross Virtual Wall beam

10

Virtual Wall

Manual Virtual Wall

Turn on a Manual Virtual Wall by hand at the beginning of

the cleaning cycle. It will shut off after 135 minutes. If the

power light blinks green, it means you’ll need new

batteries soon.

Auto Virtual Wall

When an Auto Virtual Wall is set to “AUTO” mode, the

power light continuously blinks to indicate it is on. When

battery levels are low, the Virtual Wall continuously blinks

twice to indicate that it needs new batteries. When in AUTO

mode, the batteries should last for around six months.

To save on batteries, just switch it to OFF

11

Virtual Wall Lighthouse (Standard with the 870)

In Lighthouse mode, it helps your Roomba navigate around

your home.

In Virtual Wall mode, it blocks off areas you don’t want

cleaned.

Simply use the Mode Selector to make your choice. Either

way, it turns on and off automatically as you turn your

Roomba on and off. When on, the light on top is lit.

Each Virtual Wall Lighthouse needs two C alkaline batteries

(not included).

A flashing power light means the batteries need replacing

soon

A Virtual Wall Lighthouse can act as both a Lighthouse and a Virtual Wall.

12

Let’s summarize

Overall

RESTART MODE YesYes

HEIGHT (INCHES) 3.63.4

AUTO ADJUST TO FLOOR TYPE YesYes

VIRTUAL WALLS Yes, TwoYes, Two

CARPET/HARDWOOD/TILE

YesYes

CHARGING BASE YesYes

TYPE OF FILTER HEPAHEPA

DIRT DETECTING SENSORS Yes, Series IIYes, Series II

REMOTE CONTROL YesYes

SHAPE RoundRound

PRICE $599.99$499.99

Roomba 770 Roomba 870

Even though all Roomba products are quiet enough for

you to sleep or watch TV while they are in use, the 870

model is even quieter than the 770 model. This can be a

great advantage for a consumer that seems to pick up

every single noise. It can also help to reduce anxiety of

pets that may get nervous with any sounds in the home.

Quieter

Model 870 is quieter than the 770 model

A robotic floor cleaner is certainly faster than

doing it on your own. However, the amount of

time it takes for the Roomba 870 to clean floors is

less than the Roomba 770. If you have large

flooring areas or the need to clean them often,

this is definitely a benefit you will be interested

in. 

Faster

Model 870 can clean the average floor in about of the time that it takes for the 770 model to do the same job.

When you look at the physical appearance of the

Roomba 770 and the Roomba 870, they are very

similar. However, the 870 model has the ability to

clean better. This is due to an internal design

change offering a sealed channel. This results in

suction power that is 5x what the Roomba 770

offers!

Model 870

Cleans better

Both Roomba models go around and map out the

layout of the home. You don’t have to worry

about it damaging furniture or other items that

are in its path. These iRobots can memorize

patterns in your home. They can also learn new

patters so don’t worry if you rearrange furniture

or get new furniture.

Mapping

Model 870

Model 770

Both Roomba models go around and map out the

layout of the home. You don’t have to worry

about it damaging furniture or other items that

are in its path. These iRobots can memorize

patterns in your home. They can also learn new

patters so don’t worry if you rearrange furniture

or get new furniture. The 870 is slightly lower

maintenance due to the enhanced AeroForce

airflow.

Model 870

Model 770

Less Maintenance

The design change of the Roomba 870

over the Roomba 770 also means you

empty it less often. The bristle free

system featured in the updated model

takes up less space than the previous

design.

Empty Less Often

Model 870 - The additional space has been used in the Roomba 870 model to offer a larger dust bin.

Model 770

It holds 60% more than the 770 model and that is

a remarkable improvement. The internal design

difference with this is that there is only one HEPA

filter with the upgraded model. The Roomba 770

features two filters.

Empty Less Often

Model 870 - the filter has to be replaced less frequently with the Roomba 870.

Model 770

An iRobot Roomba isn’t cheap, but it can be a

great investment for keeping your home clean

and saving you time. The Roomba 870 costs

about $600. The Roomba 770 retails for about

$479. These prices are based on average retail,

but sometimes you can find some great deals

online or in retail stores that will save you some

cash.

Pricing

Model 870

Model 770

Thank you for your time

AllHomeRobotics.com

Robot Roomba®

Vacuum Cleaning Robot