Frequently Asked Questions

Which Roomba model is best for avoiding pet messes and cables?

The j7 series has a front-facing camera and PrecisionVision object avoidance that can identify and avoid items like shoes, dog toys, charging cables, and even pet vomit.

Does the Roomba 600 series have Wi-Fi or mapping?

No, the 600 series has no Wi-Fi, no mapping, and uses bump navigation, so it cleans randomly until the battery dies.

Which Roomba models come with a self-emptying base?

The i3+ and j7+ models include the self-emptying Clean Base that empties the dustbin into a bag, requiring attention only every couple of months.

What makes the s9 series stand out from other Roombas?

The s9 series has a D-shape design for better corner cleaning, the strongest suction of any Roomba, and detailed home mapping that allows scheduling specific rooms on specific days.

The Roomba Lineup Explained (No, You Don’t Need All 47)

Every time a friend or neighbor finds out I own a handful of Roombas, I get the same question: “Which one should I buy?” And every single time, they show me a screenshot of Amazon with like eight different models and a price range from two hundred bucks to over a thousand. Look, I get it. iRobot makes this way more complicated than it needs to be. I’ve got a j7+ running upstairs, an i3+ downstairs, and a 600 series I keep in the garage for the workshop. And before you ask, no, I did not buy all of them at once. That would be insane. I’ve been collecting them over years, and I’ve learned exactly where the value is and where it is not. So let me save you some time and some money. Here is the Roomba lineup explained for normal people who just want a cleaner house.

Key Specs and Features Across the Lineup

Every Roomba, from the cheapest to the most expensive, does the same basic thing: it rolls around your floor and sucks up dirt. But the differences come down to three things: navigation, self-emptying, and smart features. Here is how the main families stack up.

600 Series (The Budget Workhorse)

This is the cheapest Roomba you can buy new. No Wi-Fi. No mapping. It bump-navigates around your house like an old RC car that drank too much coffee. It has a single rubber brush roll and a basic filter. It runs until the battery dies, then goes back to its home base. That is it. It works, but it takes forever because it has no idea where it has already been.

i3 and i4 Series (The Sweet Spot)

These are where you start getting real value. They use smart navigation with floor tracking sensors, so they actually clean in rows instead of bumping around like a pinball. The i3+ comes with the self-emptying Clean Base, which empties the dustbin into a bag so you only think about it once every couple months. The i4 is basically the same with a larger battery. These do not have camera-based object avoidance, so they will eat socks and charging cables if you leave them lying around.

j7 Series (The One That Sees)

This is the model I recommend to most people with kids or pets. It has a front-facing camera and PrecisionVision object avoidance. It can tell the difference between a shoe, a dog toy, a charging cable, and a pile of cat vomit. It avoids them instead of smearing them across your floor. Sparkles named ours “The Looky-Loo” because it stares at things before deciding to go around them. The j7+ also has the self-emptying base.

s9 Series (The Top Dog)

This is the flagship. It has a D-shape design so it gets into corners better. It has the strongest suction of any Roomba. It maps your home in detail and lets you label rooms, schedule specific rooms on specific days, and tell it to clean under the kitchen table every night after dinner. It is expensive. It is overkill for most people. But if you have a large house with lots of carpet and you never want to think about vacuuming again, this is the one.

Who Is Each One For

The 600 series is for the person who wants to dip their toe into robot vacuums without spending real money. It is also fine for a small apartment with hard floors. But honestly, if you have pets or kids, you will get frustrated with it quickly because it does not cover the floor efficiently and it will get stuck on anything higher than a pencil.

The i3+ is for the person who wants a robot vacuum that actually works without paying flagship prices. The self-emptying base is a game-changer. You do not need to touch the vacuum for weeks at a time. The only catch is you have to pick up cords and small objects before it runs, or you risk a sock getting eaten. If you are disciplined about tidying up, this is the best value in the lineup.

The j7+ is for the person who is not disciplined about tidying up. That is most of us with young kids. I cannot tell you how many times the j7 has saved me from a disaster involving a hairbrush, a toy car, or a pair of underwear. It just works. Sparkles leaves her art supplies all over the floor, and the j7 navigates around them like an obstacle course. The only thing it sometimes misses is very low-profile cables like phone charging cords that are flat against the floor.

The s9+ is for the person who has no budget concerns and wants the absolute best. Or for someone with a very large house and lots of wall-to-wall carpet. The corner cleaning is genuinely better, and the suction is noticeably more powerful on carpets. But if you have mostly hard floors, do not bother. The j7 is just as good for less money.

Pros and Cons of the Roomba Lineup

600 Series Pros

  • Very affordable entry point
  • Simple, no-fuss operation
  • Works on hard floors and low carpets

600 Series Cons

  • No Wi-Fi or smart features
  • Takes forever to clean because it does not know where it has been
  • Gets stuck constantly on rugs, cords, and transitions
  • Small dustbin fills up fast with pet hair
  • No self-emptying option

i3/i4 Series Pros

  • Efficient row-by-row cleaning
  • Self-emptying base available
  • Good suction for the price
  • Works with the iRobot Home app

i3/i4 Series Cons

  • No object avoidance, so you have to pick up before it runs
  • Does not learn multiple floor plans
  • Not great on high-pile carpet

j7 Series Pros

  • Excellent object avoidance, will not eat socks or toys
  • Self-emptying base available
  • Learns your home and lets you label rooms
  • Great with pet hair and messes

j7 Series Cons

  • Still not perfect with low-profile cables
  • More expensive than the i-series
  • Dustbin is not huge on standard model

s9 Series Pros

  • Best corner cleaning of any Roomba
  • Strongest suction, great on carpets
  • Precise room mapping and zone cleaning
  • Self-emptying base included in the + version

s9 Series Cons

  • Very expensive
  • Overkill for mostly hard floors
  • Same object avoidance limitations as the i-series
  • Large shape can be harder to fit under low furniture

Verdict and Buy Recommendation

If you are buying a Roomba today and you have kids or pets, just buy the j7+. I know it costs more than the i3+, but the object avoidance is not a luxury, it is a necessity. The self-emptying base means you never have to touch the dustbin. Sparkles named ours “Mr. No-Touch” because she sees me empty it once a month and that is it. The cleaning performance is excellent on both hard floors and carpets. The app is easy to use. It learns your home and lets you set schedules by room. It is the right tool for the job.

If your budget is tight and you are willing to pick up socks and cords before it runs, get the i3+. It cleans just as well as the j7 in terms of dirt pickup, but you have to prep the room. That is a dealbreaker for some people and totally fine for others.

Do not buy the 600 series unless you are really pinching pennies or you have a tiny apartment with zero obstacles. Do not buy the s9+ unless you have a big house with a lot of carpet and a big budget. The j7+ is the Goldilocks model. It is not the most expensive, not the cheapest, but it is the one that actually fits into your life without making you change your habits. And let me tell you, for a dad who has already changed enough habits, that is worth the money right there.