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Roomba 650 Vs 770: Comparison Review

Updated on July 29, 2014

Are you trying to workout what the exact differences are between the Roomba 650 and 770, especially given the huge jump in price from the 650 model to that of the 770 (and whether that is actually justified)?

Well if so, this comparison guide should certainly help clear up any potential confusion you might have with regards to each robot vacuum.

You can see immediately from the comparison table of the Roomba 650 versus Roomba 770, that there are quite a number of upgrades made from the 650 to the 770 as well as a few additional features that have been added. Don't worry though we will discuss each aspect in detail as well as provide a concluding section that highlights the significant differences between the two models & ultimately which is the best overall Roomba vacuum to buy.

Comparison Table of the Roomba 650 Versus 770

Roomba 650
Roomba 770
13.39" x 3.62" (Diameter x H)
13.9" x 3.6" (Diameter x H)
7.9 lbs
8.4 lbs
Battery Performance
Run Time: 70 mins
Run Time: 90 mins
Charge Time
4 Hours
3 Hours
Control Panel
Clean Up
Dirt, Pet Hair & Debris
Dirt, Pet Hair & Debris
Multi Floor
Cleaning Process
3 Stage Series 1
3 Stage Series 2
Filtration System
AeroVac Filter
Dirt Detect Series 1
Dirt Detect Series 2 & Persistent Pass
Updated iAdapt
Virtual Walls
Remote Control
Bin Indicator
Audio & Visual
12 Months
12 Months
For Pets
For Pets & Allergies
A comparison table that contrasts the Roomba 650 against the 770.

The prices listed are the 'recommended retail' ones, however if you are to shop around a fair bit you will find a lot better deals than the above. I have found in my experience Amazon is usually the best place to be shopping given they offer significant discounts as well as free shipping (moreover you have their third hand market place to look through as well).

What's the Difference Between the Roomba 650 and 770?

So as you can see there are quite a few differences between the two Roomba models.

#1 Design & Practicalities: both the Roomba robot vacuums are black, however the 770 is a little bigger and heavier (only by a pound or so) with this though comes a larger bin capacity so it requires far less maintenance than that of the 650 -- more automatic. Moreover, in general you can be much less hands on with the 770 in terms of cleaning it (there are specific markings that have been drawn on that you can just wipe, rather than having to guess and end up cleaning everything on the 650) in comparison to the 650 -- which is a definite plus for the 770.

#2 Improved Battery Performance: iRobot have also reconfigured the battery and have managed to improve both the run time and reduce the charging time (you can see the details above in the comparison table). What I do like particularly about both the models though, is that if they run out of power mid way through a job, they will take themselves off to be recharged and then come back to finish the job off in hand.

#3 Cleaning Performance

Both the Roomba 650 and 770 use essentially the same cleaning system, however the 770 is fitted with a more powerful vacuum -- hence can generate a stronger suction force and in turn gather up more debris, dust and pet hair than the 650 model can. This in turn makes it more efficient and faster at cleaning a room to a higher standard than the 650 -- meaning it can basically get more done with less power consumption.

Note: despite their circular shape, they can actually get up close to skirting boards and sides of rooms due to their integrated edge cleaning brush.

#4 Upgraded Cleaning Technology

The 770 also has a better dirt detect system using both optical and acoustic sensors (the 650 just has an acoustic one) -- this allows it to identify dirtier patches quicker and more effectively. Upon finding them, the Roomba 770 will also initiate a persistent pass feature, where it basically performs multiple passes (going back and forth over a dirty patch) until it is as clean as the rest of the floor -- much like you would do with a normal vacuum cleaner.

They both use iAdapt responsive technology too, which is pretty much like a GPS system for the Roomba to navigate an efficient cleaning path around your house (avoiding obstacles etc.), only the 770 is integrated with a much more intelligent software system.

#5 Additional Features

The Roomba 770 also comes with a few extra aspects too. It comes with an extra virtual wall, which is basically to contain the Roomba vacuums within a certain area for cleaning as well as a remote control (so you can control the settings of the Roomba without actually needing to get up from your sofa).

There are a few differences in the accessories included as well: both come with a brush cleaning tool, but the 770 offers a round brush & flat tool as well. Also, the 770 has been fitted with sophisticated HEPA filters, which is particularly recommended for those who have asthma or allergy issues, given that it will prevent 99.9% of harmful particles from being expelled into the air whilst it is vacuuming unlike the 650.

Which Roomba Do You Think is the Better Investment?

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Which iRobot Roomba to Buy the 770 or 650?

There's a difference in price of around 100 bucks. However, the 770 is literally packed with vastly improved technology and decent set of extra features too, along with improved aspects that makes it the clear option to go for in my opinion.

You are getting a lot of upgraded aspects for your money and for me is easily the model to go for out of these two. Granted they do share some things in common, but these are either insignificant really to producing a decent thorough clean of your house or they have been dramatically re-vamped with the Roomba 770. Ultimately the decision is yours though, which will you go for the Roomba 650 or 770? Both, however without a doubt awesome robot vacuum cleaners that offer awesome value for money.

You can actually see in my comparison of the Roomba 770 and 780, I recommend the former is the best option to go with from the Roomba 700 series and is pretty much my stand out favorite in terms of 'bang for buck' with regards to robot vacuum cleaners.

Roomba 650 In Action!


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