iRobot Roomba 870

Path
Home > iRobot > Roomba 870
Brand
iRobot
Model
Roomba 870
Operating Time (hours)
1
Charge Time (hours)
3
Operating Pattern
Back and Forth, Random
Scheduled Cleaning
Yes
Infrared Sensor
No
Dirt Sensor
Yes
Hardwood, Tile & Linoleum
Yes
Carpet
Yes
Spot Mode
No
Height Adjustment
No
HEPA Filter
Yes
Multi-Room Navigation
Yes
Battery Indicator
No
Full Bin Indicator
No
Cliff Sensor
Yes
Charging Base
Yes
Return to Charging Base
Yes
Bumper
No
Boundary Markers
No
Virtual Walls
Yes
Remote Control
No
Additional info
+ 3000mAh iRobot® XLife™ Extended Life Battery
+ Airflow Accelerator
+ High-Efficiency Vacuum
+ Dirt Detect Series 2 with Persistent Pass Cleaning Method
+ iAdapt Responsive Navigation Technology
- No Lighthouses
Manual
http://www.irobot.com/~/media/Files/Support/Home/Roomba/800/iRobot-Roomba-800-Manual.ashx
Comparison: iRobot Roomba 870 vs iRobot Roomba 655

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Review by D. A. Ross
8/10
2015-06-29
I've been clinging to the same beat up Dirt Devil Vibe Upright (with Power Brush attachment!) since I bought it on clearance ten years ago. The suction is terrible, it's as loud as a cement mixer, and it weighs about as much as that cement mixer. Needless to say, I have been in need of a new vacuum for quite some time, but never did I think that vacuum would be a Roomba.

Truth be told: I always thought robot vacuums/sweepers were a bit of a gimmick, something for tech-junkies or, well, the lazy. So when it arrived in the mail, I opened it with both skepticism and cynicism, thinking, if nothing else, the Roomba would serve as a fun new torture device for our cat, Sherlock. As much as it pains me to admit, I am now eating crow. The Roomba 870, despite a few limitations, is an incredible appliance and I will (probably) not speak ill-ly of them again.

My home set up: one-bedroom apartment, about 700 sq ft, tile in the bathroom and kitchen, carpet and throw rug in living room, bedroom and closet. One short-hair domestic cat who loves to shed, and one imported wife with long black hair, who also loves to shed. After spending some time with it, here is a list of Pros and Cons for owning the iRobot Roomba 870:

PROS:
* Solid construction. The Roomba is built like a tank, but has soft edges, so if it does collide with an object (which rarely happens anyway), no damage will be incurred
* Surprisingly quiet. I can still hear the TV/stereo/conversation while the Roomba is running
* No more spinning brushes that get clogged with debris! I didn't realize what a pleasure this would be (specifically, it doesn't choke on the tassels at the ends of the throw rug! Genius)
* Fairly intuitive, easy setup. I'm certainly not ignorant of technology, but for time's sake, I'll always prefer simple programming. Can set up multiple, scheduled cleanings with relative ease
* Long battery life and self-charging. The battery has yet to die mid-cleaning, as I don't have a ton of square footage, but this is still a a great feature. The Roomba will find the nearest dock and park itself until fully re-charged
* Collects a great deal of cat hair and dust, so it lives up to the pet/allergen claims
* Strong suction. We have an issue of our cat trailing litter everywhere, which we're constantly sweeping. The Roomba is easily able to suck up the litter granules
* Transitions pretty smoothly from the tile to carpet. It only got hung up once, but only because it hit a warped part of the rubber carpet stripping.

CONS:
* Warranty. Comes with one-year limited standard, but with an appliance with this much technology, and at this price point, I would expect at least 5, if not 10, years of coverage.
* Can't use it on furniture, like our couch, which still necessitates owning another vacuum or handheld device
* See above, for carpeted stairs (I mean, you COULD use the Roomba on stairs, but you'd have to manually lift it onto each step, thus defeating the purpose)
* Dust bins are a little small, meaning they need to be changed after every cleaning, but I am willing to concede the overall size of the unit will limit this

If you're on the fence about buying a Roomba, take it from me that it's worth the plunge. I'm now thinking of getting one for my mom and step-dad, who also own a cat, and just don't have much time or energy to vacuum their place. And if you're curious, besides functioning as a high-tech cleaning device, it definitely delivers as an entertaining torture machine for pets.