What to Know Before Buying Your First Robot Vacuum

Quick answer: A robot vacuum maintains floors; it doesn't replace your upright or canister. Get that straight first, and then spend the money on the one feature that changes everything: a station that empties the robot itself.

Two of the three machines below are ours, and the annoying parts of this category belong in this article too, because the product pages don't mention them.

The short version:

• Eureka E20 Plus, $449 on Eureka's site: the pick for most first-timers. Bagless self-empty, 8,000 Pa, obstacle avoidance.
• Eureka E20 Evo Plus, $399 on Eureka's site: the budget first-timer. 10,000 Pa, bagless, fewer frills.
• Shark IQ Robot, typically $300-377: buy it instead if anti-tangle is your whole concern.

Prices are list prices as of September 2026. Eureka has run promotions taking $200 off at checkout, so check before you buy. Everything here is based on specs and user reviews, not lab time.

1. It maintains your floors. It doesn't replace your vacuum.

A robot vacuum is a maintenance tool. It keeps floors presentable between the times you actually clean. It is not a replacement for your upright or canister, and anyone who tells you otherwise is selling something.

8,000 Pa is plenty for daily crumbs and hair on hard floors. It is not a carpet deep-cleaner. On a thick rug with a week of embedded dirt, the robot does the top layer and the real vacuum does the rest. That division of labor is fine. The machine's value is frequency: a robot that runs daily beats a deep clean you keep skipping.

Every Eureka model on this list runs 180 minutes a charge, which is enough to cover a mid-size house in one pass. Schedule it for weekday mornings and the floors hold at 80 percent all week. That's the whole pitch.

Buy one expecting to retire your upright and you'll be disappointed by week three. That's how robots end up in closets.

2. Stairs. Never.

No robot vacuum does stairs. Not ours. Not Shark's. Not anyone's, at any price. Climbing a step is hard enough; coming back down without falling is the part nobody has solved, and nobody has shipped it.

If your home is mostly stairs, save the money. If you have a couple of steps, you'll carry the robot up and let it run up there. That's a real answer, if a dull one.

Everyone asks about stairs. Nobody likes the answer. It doesn't change.

3. You still have to maintain it.

It's a vacuum. Vacuums need maintenance. Rollers wrap in hair, side brushes tangle, bins fill, sensors get dusty and start bumping into things.

With pets or long hair, plan on weekly maintenance: clean the roller, unjam the side brush, empty the bin, wipe the sensors. None of it is hard. It's just a Tuesday habit. A self-emptying station means you touch it less, not never.

Every robot needs its roller cleaned at some point, regardless of brand. The easiest machine to own is the one whose roller you can actually reach.

4. The self-emptying station is the feature worth the money.

With pets, this is the difference between a robot that runs and a robot that sits. Without a self-emptying base you're emptying a small bin every day or two, and eventually you stop running the robot. With one, you touch the machine every couple of weeks.

That matters more with pets than anything on the spec sheet. Pet hair falls all day, so the robot runs all day, and a bin you have to empty every evening is a bin you'll eventually stop emptying.

The E20 Plus empties into a bagless 2L station, and the cycle takes about 10-15 seconds. You hear a whoosh and it's done.

Honest note: not flawless. Some E20 Plus owners report the station throwing a "Please Install The Dustbin" error after three or four months. A magnet shifts and the station stops emptying. Fixable. Also not something you should have to fix.

5. Bagless is the math that wins.

The part nobody puts on the box: bagged systems cost about $60 a year in bags. Bagless systems cost $0. Over five years that's $300 or more, out of your pocket and into a landfill.

The honest counterpoint: bags trap odor better than an open bin, and some owners prefer that. Fair. I'd still take the $300.

At list prices, the Shark IQ at $300-377 is cheaper to buy than the E20 Plus at $449, and it's bagless too, so the bag table doesn't separate them. What the extra Eureka dollars buy is a verifiable number: 8,000 Pa on the spec sheet, where Shark publishes no suction rating in pascals at all. Nobody selling you a vacuum without a published suction number shows you that comparison.

6. The app is where we lose points. Fairly.

Every brand has an app, and they are not created equal. Ours is the weak point, and users say it plainly: less polished than Roborock's or Dreame's, mapping is fragile, and moving the base or picking up the robot can lose your map. Reddit users report remapping ten times in one case. Ten.

Roborock's app is genuinely better than ours. No "but." If app polish is a priority, that's the honest recommendation, and it's not the machine I'm recommending.

7. Obstacle avoidance matters more than suction, with pets or kids.

A robot that can't see eats whatever is on the floor. Socks, USB cables, rug tassels, kids' toys, and with pets, the other thing. Obstacle avoidance is the feature that stops you from rescuing the robot from a shoelace twice a week.

The floor you leave for the robot is part of the product. A clear floor on day one teaches the machine a route it can actually hold; a floor full of cables teaches it nothing but how to stall.

The gap between a machine that maps and a machine that avoids is the biggest hidden difference in the category. Read the fine print on the spec sheet: obstacle avoidance is a feature, not a given.

The E20 Plus uses DuoDetect, a dual-line laser plus a right-side sensor, and it handles pet waste well. It still eats cables and socks. Users report this. You pre-clear the floor or you get good at rescue missions.

One written guarantee exists in this category, and it isn't ours: iRobot's P.O.O.P. promise replaces the unit if it runs over pet waste. Nobody else offers that in writing. If that scenario keeps you up at night, that's the machine.

8. It manages hair. It doesn't end shedding.

Pet hair and human hair are the daily problems a robot vacuum actually solves. It doesn't make hair stop existing. Set that expectation now.

Long human hair is the harder case, candidly. It tangles every roller eventually; the question is whether the roller resists it or cuts it off. Shark's Anti Hair Wrap is the industry benchmark for resisting, and it beats anything we make. Heavy shedder in the house? That's the argument for the Shark.

With the E20 Plus, you'll occasionally cut hair off the roller. That's maintenance, not failure.

9. Check your WiFi before you unbox anything.

Most robot vacuums need a 2.4 GHz network. Ours do. A lot of people find this out at 10 pm on setup night, when the app won't find the robot.

2.4 GHz is the band your doorbell and your smart bulbs probably use (yes, the old one). If your router broadcasts both bands under one name, most robots handle it fine. If you turned 2.4 off because it's "slow," turn it back on.

Ten minutes in the router settings, and setup night stays boring, which is what you want.

10. Budget the whole cost of ownership, not the sticker.

The purchase price is the smallest number you'll see. The real question is what it costs to own.

Bags, if you pick bagged: about $60 a year. Replacement brushes and filters, on any machine: a few dollars a year. Filters and brushes aren't expensive. They're just not free, and they're not optional. And the dock takes up real floor space; measure the spot before you commit.

Run the five-year math before you buy. The E20 Plus is $449 and costs nothing to run. The Shark IQ is cheaper upfront at $300-377 and costs nothing to run either: its self-empty base is bagless, so there's no $60 a year. What actually separates them is verifiable suction: 8,000 Pa on the E20 Plus, no published number on the Shark. That's the figure that should decide it.

For a first-timer, here's where I'd point you

Three machines, three answers. Most of you shouldn't have to think very hard about this.

The E20 Plus at $449 is the one I'd hand to most first-timers. Bagless self-empty, 8,000 Pa, obstacle avoidance that handles the worst floor. 189 owners rate it 4.8 stars. It's vacuum-only, which is candid about what a first robot should do. No mop on this one, and I think that's right for a first machine: mopping adds a chore to a purchase that's already a habit change. Start here.

Tighter budget? The E20 Evo Plus at $399 gets you 10,000 Pa and the same bagless dock for $50 less. The trade: 50 reviews against 189, a rubber brush that doesn't grip thick carpet as well, dirt that drops back out as the chamber fills, and owners report replacement parts being hard to find. The extra 2,000 Pa costs $50. I'm not sure it's worth it.

If anti-tangle is your whole problem, buy the Shark IQ at $300-377. Anti Hair Wrap is proven. It's the benchmark, and it beats anything we make. The self-empty base is bagless, so there's no $60 a year on top. You're paying for a roller you rarely have to clean.

Ours is the E20 Plus for most first-timers, and if it isn't right for your house, I'd rather you bought the Shark. You're going to live with this thing for years.