iRobot Roomba 770 vs iRobot Roomba 870

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Roomba 770 vs 870 – Thorough but Loud Cleaning

The Roomba 770 vs 870 highlights the difference between the budget-friendly low-profile Roomba iRobot 770 and the mid-range 870 with longer battery life but larger clearance height. Both models are designed for cleaning hard floors and carpets; they lack mapping but have protective bombers to avoid damage because of touching the obstacles.

Suction and dustbin capacity

In my review, I’d like to draw attention to vacuums’ 3-step cleaning and the AeroForce system that allows removing approximately 98% of the dirt. The Roomba 870 has claimed 1,000 Pa max suction while the company doesn’t offer specifications for the 770 model. However, both models demonstrate good suction power despite the lack of carpet boost technology.

The Roomba 870 features a dust container of 1,000 ml while the 770’s storage compartment is only 260 ml that makes a user empty it several times per session.

Using area

The Roomba 770’s charge lasts about an hour and a half, allowing the unit to move from one room to another and to clean the whole house with three bedrooms on a single charge. The Roomba 870 features the stated 1,000 feet per 120-hour charge. Still, the using area is dependable on how much dirt is on the surfaces. Besides, one can set a vacuum to a spot mode or use it to clean lots of carpets. All these factors reduce the using area since they require more power.

Noise level

Both models are rather noisy despite the small difference between their decibels (the Roomba 770’s 60 dB versus the 870’s 61 dB). So they are pretty loud.

Carpet cleaning

The test of the Roomba 870 vs 770 hasn’t revealed an essential difference in their ability to clean soft surfaces. Both models cope with low-pile rugs. They lose power and cannot handle deep cleaning on carpets with long fibers. Both models come with branded silicone spindles that remove various types of fur without tangling with hair. Besides, they go from the hardwood floor up onto the carpet and back hassle-free.

Roomba 770 Pros & Cons

Pros

  • Two auto virtual walls are in the package.
  • The device has a handle to carry it around with one hand.

Cons

  • The robot doesn’t stop when a dust container is full.
  • Sometimes, the unit moves on before it cleans an area thoroughly.

Roomba 870 Pros & Cons

Pros

  • The item always returns to the docking station.
  • The robot doesn’t scratch delicate surfaces.

Cons

  • The unit leaves some dirt in crevices and corners.
  • Virtual walls don’t automatically turn on/off when the vacuum starts/stops cleaning.

iRobot Roomba 770

iRobot Roomba 770 review

Apr 29, 2020

The iRobot Roomba 770 robotic vacuum cleaner is a programmable device for dry use only with a remote in the package. It is remarkable for HEPA filtration and advanced dirt detection. The latter makes...

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iRobot Roomba 870

iRobot Roomba 870 review

Jul 07, 2020

Those looking for real Roomba 870 reviews should consider the following description and know more about the mid-level but still powerful device with a 3-stage cleaning algorithm, extra life on its ba...

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Common

Product

iRobot Roomba 770
iRobot Roomba 870

Model

Roomba 770
Roomba 870

Brand

iRobot
iRobot

Rating

3.9 of 5
4.2 of 5

Reviews

22
651

Battery

Type

Li-ion
NI-MH

Battery Capacity

3000 mAH
3000 mAH

Battery Life

90 Minutes
120 Minutes

Auto Charging

Charging Time

4-5 hours

Cleaning features

Suction

Dust bin capacity

260 ml
1000 ml

Number of cleaning stages

3

Using area

1000 square feet

Noise level

60 db
61 db

Carpet cleaning

Air Filteration

Control

Remote Control

Wi-Fi

Wi-Fi frequency requires

has not
has not

Protection

Drop Sensor Protection

Anti-Collision

Protective bumpers

Power

Voltage

100-240V
100-240V

Frequency

50/60Hz
50/60Hz

Cleaning modes

Auto

Spot

Edge

Single room

Intensive

Features

Color

black
gray

Display

Virtual Wall

Time scheduling function

Voice control

Warranty

1 Year
1 Year

Dimensions

Product Size

13.9 x 3.4 x 13.9 inches
13.9 x 13.9 x 3.6 inches

Product Weight

11.4 pounds
11.8 pounds

Robot vacuums Comparisono comparison rating

  • better
  • worse
  • 13.2
  • 16.8
  • 13.2iRobot Roomba 770
  • 16.8iRobot Roomba 870

The iRobot Roomba 870 is better robot vacuum in this comparison. Check iRobot Roomba 870 price