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Robotic Pool Skimmer vs Vacuum Robot: Which Do You Actually Need?

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Our top picks

  1. Betta SE Plus Solar Skimmer
    Best solar skimmer: 30+ hours, ~3,000 reviews at 4.5 stars, about $370–390Betta SE Plus Solar SkimmerSolar skimmer · 30+ hr solar · Surface
    8.4
    Price tier: Budget, under $500Check price on Amazon
  2. Aiper EcoSurfer S2 Solar Skimmer
    Best smart skimmer: app, 150 µm filtration and chlorine dispenser, about $340–360Aiper EcoSurfer S2 Solar SkimmerSolar skimmer · 35+ hr solar · Surface
    8.1
    Price tier: Budget, under $500Check price
  3. Beatbot AquaSense 2 Ultra
    One robot that does both: floor, walls, waterline and surface, about $2,550–2,700Beatbot AquaSense 2 UltraCordless · Up to 5 hr · Floor + Walls + Waterline + Surface
    8.6
    Price tier: Flagship, over $2,000Check price
  4. Beatbot AquaSense 2
    Best vacuum robot to pair with a skimmer: floor, walls, waterlineBeatbot AquaSense 2Cordless · Up to 4 hr · Floor + Walls + Waterline
    8.7
    Price tier: Mid-range, $500–$1,000Check price

Walk the pool-robot aisle and you’ll find two different things sold under similar names. A vacuum robot lives on the bottom, scrubbing the floor and walls. A skimmer robot floats on the surface, picking up whatever lands there. Which one you need depends almost entirely on where your pool’s debris is.

What each one does

Three kinds of pool robotThey solve different problems — and plenty of pools use two of them.
Corded vacuum robot

Plugs into a poolside power supply and runs as long as you want. Strong, proven, no battery to degrade — but you manage a floating cord and lift 20+ lbs out of the water.

Dolphin Nautilus CC · CC Plus · CC Supreme · Nautilus AG
Cordless vacuum robot

A rechargeable battery gives 1.5–5 hours per charge and no cord. Newer models climb walls, scrub the waterline and park themselves at the surface — but you recharge every use or two.

Beatbot · Aiper Scuba · Wybot · Seagull SE
Solar skimmer

Floats on the surface, skimming leaves, pollen and bugs all day on sunlight. It does not vacuum the floor or climb walls, so it complements — rather than replaces — a vacuum robot.

Betta SE Plus · Aiper EcoSurfer S2
  • Vacuum robots (corded Dolphin Nautilus, cordless Beatbot, Aiper and Wybot) clean the floor, most climb walls and many scrub the waterline. They collect debris in a basket.
  • Skimmer robots (Betta SE Plus, Aiper EcoSurfer S2) skim the surface for leaves, pollen, insects and hair. Most are solar, so they run all day.

When a skimmer makes sense

  • Trees overhang the pool, or it’s pollen season.
  • You get bugs and pet hair on the water.
  • You’re tired of skimming with a net, and your floor robot struggles with heavy leaf fall: the sooner leaves are removed, the less they sink and break down.

When a vacuum robot is enough

If you have a screened enclosure, no trees nearby and mostly dust and algae, the floor is where your debris ends up. A vacuum robot alone is the better spend.

Best skimmers

The Betta SE Plus is the best-reviewed: 30-plus hours on a charge, a big 200 µm basket and 4.5 stars across about 3,000 reviews. The Aiper EcoSurfer S2 adds app scheduling, 150 µm filtration and a chlorine-tablet dispenser. Our head-to-head compares them.

The one-robot option

The AquaSense 2 Ultra cleans floor, walls, waterline and surface, with a skimming mode that runs for up to about 10 hours. At about $2,550–2,700, it costs more than a $800 vacuum robot plus a $380 skimmer, so it only makes sense if you also want its AI mapping or have a large, complex pool.

Our pairing advice

For a leafy pool: a mainstream vacuum robot such as the AquaSense 2 or the corded Nautilus CC Plus, plus a Betta SE Plus skimmer, for about $1,200. If you’re on a budget, a Sora 10 and a skimmer comes in under $900. The robot matcher suggests a skimmer when you pick moderate or heavy debris. For the rest of the field see the best robotic pool cleaners of 2026.

Frequently asked questions

What is the difference between a pool skimmer robot and a vacuum robot?
A skimmer robot floats on the surface and removes leaves, pollen, bugs and pet hair. A vacuum robot sits on the bottom and cleans the floor, and usually the walls and waterline. They solve different problems.
Do I need both a skimmer and a vacuum robot?
If your pool collects a lot of surface debris, yes: a skimmer stops leaves sinking and decomposing, and a vacuum handles what already sank and the algae and dirt on surfaces. With little surface debris, a vacuum robot alone is usually enough.
Can a skimmer replace a vacuum robot?
No. A skimmer doesn't clean the floor or walls.
Is there a robot that does both?
The Beatbot AquaSense 2 Ultra cleans floor, walls, waterline and the water surface in one unit, at about $2,550–2,700. Beatbot's Sora 70 also skims, though we haven't reviewed it.