Lightweight · $280–$459

Pool showdown

Best Value Robotic Pool Skimmers (2026): Betta SE Plus vs Aiper EcoSurfer S2 vs Beatbot iSkim

By The Smith Family, reviewed by Brad Smith · Independent, no paid placement · Updated September 9, 2026Prices checked July 2026

Some links here are affiliate links — if you buy through them, we may earn a commission at no extra cost to you (sometimes with a discount for you). It never changes which products we recommend — and we name the SKIPs to prove it.

A robotic surface skimmer is the little solar robot that patrols your pool all day eating leaves, pollen, and bugs off the top before they sink and stain. For years there was really one answer in the ~$350 class — the Betta SE Plus — and everything else was a step down. In 2026 that’s finally not true: two genuine rivals showed up with deep owner bases of their own. So we re-ran the fight.

One thing up front, because it matters here: two of these four pay us a higher commission than the Betta does (the Aiper and the Beatbot are enrolled in Amazon’s higher-rate creator program; the Betta isn’t). We ranked them the only way that keeps this useful — on what owners actually report, not on what we earn. The champ that pays us the least still wins. Here’s how they stack up.

Quick comparison

Model	Best for	Power	Runtime	Basket capacity	Price
Betta SE Plus	Best value	Solar + AC backup	24/7 continuous	Top-load (L not published)	Check price →
Betta SE	Best for a full-sun pool	Solar only — no adapter	24/7 continuous	Top-load (L not published)	Check price →
Aiper EcoSurfer S2	Best value challenger	Solar + DC adapter	24/7 continuous	4 L	Check price →
Beatbot iSkim	Newest — biggest basket	Solar (10,000 mAh)	Up to ~28 hr + solar	9 L	Check price →
Aiper EcoSurfer S1	Cheapest — but charging-flawed	Solar + DC adapter	Up to ~12 hr + solar	~5 L	Check price →

Prices move constantly — any Amazon price shown is as of the date noted and subject to change; tap through for today's number.

How we read the ratings (the whole fight)

These four skimmers do the same basic job with the same basic hardware, so this class isn’t won on a spec sheet — it’s won on who actually stays running for years, and the honest way to see that is the owner base:

• Betta SE Plus — 4.5★ / 2,993. The deepest base behind a pick with adapter backup (only the plain SE, at 8,158, has more owners), and it’s clean (verified purchasers, no free-product padding). This is why it’s still the default — though its score is no longer ahead of the Aiper’s.
• Aiper EcoSurfer S2 — 4.4★ / 2,323. It matched the Betta at 4.5 in August and gave the tenth back in September, so the champ is ahead on the score and the base. Two things we flag rather than hide: pro testers grade the S2 lower than its owners do, and its base is not as clean as the Betta’s — 2 of 13 visible cards are free-product Vine reviews, pooled across two colourways.
• Beatbot iSkim — 4.4★ / 183. The rating is respectable but the base is young (it launched in 2026) and has slipped since we first carded it, so we label it early data. Great on paper; not yet proven over seasons.
• Aiper EcoSurfer S1 — 3.6★ / 305. A real base, and it tells a real story: charging failures. The number is the warning.

The takeaway: the S2 got within a tenth of the Betta and did not hold it, so the champ keeps owner love on both the score and the base; the iSkim is the promising newcomer, and the S1 is the cautionary tale.

Best overall: Betta SE Plus

Still the one to beat, and still the one we’d hand most people.

The Betta SE Plus runs 24/7 on solar with an AC-adapter backup, so a stretch of cloudy days doesn’t strand it — the single most-cited reason owners trust it over cheaper solar-only skimmers. It runs the same 2.5-inch propellers as robots costing three times as much, empties from a drip-free top-loading basket, and carries a 1-year warranty (Betta Care can extend it to two or three). Its real edge is the thing you can’t buy back: 2,993 owners at 4.5★ — a base that only the plain SE, which lacks the adapter, outnumbers — the Aiper has matched the score, but not the size of the crowd behind it.

The honest catch is that it’s no longer clearly the best value — the Aiper S2 matches most of what it does for about $40 less, and Betta’s own cheaper SE sits $20 below it on a base nearly three times as deep. Not for you if you want the biggest basket for the fewest empties (that’s the Beatbot iSkim), or your pool is in full sun with no shallow entry steps, in which case the plain SE below saves you $20.

Winner

Our top pick

Betta SE Plus

Best value · Solar with AC-adapter backup, so a week of clouds doesn't sideline it

Your pick if you want a surface skimmer that never quits — solar with AC-adapter backup so a week of clouds doesn't sideline it, plus a shallow-water safeguard that keeps it off your pool stairs (4.5★ across 2,993).

4.5 · 2,993 owner ratingsacross Amazon · September 2026 · global base

Check price at Amazon →

Pro review Bob Vila

“After hands-on testing, I found that the Betta SE Plus stood out as the top performer—it was incredibly easy to set up and removed more leaves and floating debris than any other model I tried.”

Best Overall of Bob Vila's 2026 robotic-skimmer test (published 2026-07-24). Methodology on the page: "For hands-on testing, I used each robotic skimmer in residential inground pools over multiple days, including both screened-in and open-air pool environments." The tester is Florida-based. Their Buy-at-Amazon link resolves to B0CVMQ3XBX, the listing we card. Supersedes The Pool Nerd's August 2025 review ("It's efficient, quiet, and low-maintenance."), which is now older than a year.

Betta SE Plus

Best value

Your pick if you want a surface skimmer that never quits — solar with AC-adapter backup so a week of clouds doesn't sideline it, plus a shallow-water safeguard that keeps it off your pool stairs (4.5★ across 2,993).

4.5 · 2,993 owner ratingsAmazon · September 2026 · global base

Pro review “After hands-on testing, I found that the Betta SE Plus stood out as the top performer—it was incredibly easy to set up and removed more leaves and floating debris than any other model I tried.”Best Overall of Bob Vila's 2026 robotic-skimmer test (published 2026-07-24). Methodology on the page: "For hands-on testing, I used each robotic skimmer in residential inground pools over multiple days, including both screened-in and open-air pool environments." The tester is Florida-based. Their Buy-at-Amazon link resolves to B0CVMQ3XBX, the listing we card. Supersedes The Pool Nerd's August 2025 review ("It's efficient, quiet, and low-maintenance."), which is now older than a year.— Paul Rankin, Bob Vila

Pros

• Solar plus USB-C/AC backup — keeps skimming through cloudy stretches
• Top-loading 200µm basket lifts out without dribbling debris back in
• Twin salt-chlorine-tolerant motors handle treated water
• Covers up to ~2,400 sq ft, in-ground or above-ground

Cons

• 2.5-in propellers — less grab than the Dolphin's 3-in in wind or heavy leaf fall
• 1-year warranty (Beatbot gives two)
• Wireless remote only — no phone app

What owners complain aboutFit / placement

It strands itself on a beach or zero entry and hangs up on pool-sweep hoses; separately, battery life and the status lights degrade inside the first year.

4 of the first 10 critical cards (of 299 critical) are stranding or snagging and 3 more are battery or indicator failure within a year - the same shallow-water weakness the Betta SE shows. Base 2,926 at the August pass, 2,993 on 2026-09-04 · critical reviews read August 2026

Check price at Amazon →

✓ Safety: no active recallNo CPSC recall on any Betta product — CPSC recall API re-checked 2026-09-04 (saferproducts.gov/RestWebServices/Recall, ProductName=Betta → 1 record, a FALSE POSITIVE: #16036 (2015) is a PetSmart Top Fin BETTA FISH BOWL, the aquarium-fish name collision; opened and confirmed not a pool product; "Betta SE" → 0). Class queries the same sitting: "robotic pool cleaner" and "pool cleaner" return only Aiper Seagull Pro #25187; "pool skimmer" returns 0. Positive control: "Aiper" returns its two robot recalls (#23784 Elite Pro 2023, #25187 Seagull Pro 2025), so a zero is a real answer. Solar surface unit with a small backup battery — store out of direct sun when not in use.

Best for a full-sun pool: Betta SE

The same skimmer, $20 less — and the deepest owner base in the category.

We had not carded the plain Betta SE until now, and on volume alone that was the bigger omission on this page: it carries 4.4★ across 8,158 ratings, nearly three times the Plus’s crowd and the deepest base of any skimmer we track. We read both listings on the same day so the comparison rests on one basis, and the bases are identically clean — thirteen visible reviews each, zero free-product reviews on either, thirteen of thirteen verified purchases on both, and the same five-of-thirteen share reviewing from outside the US. That is a rarity: usually one number in a pair like this is dirtier than the other, and here neither is.

So what does the Plus’s $20 actually buy? Two things, from each listing’s own feature bullets rather than our reading of them. The SE says it “operates 100% on solar power” and lists recharging only “under direct sunlight”; the Plus adds dual charging with a backup adapter (3.5 hours on mains versus 5–6 in the sun). And the Plus adds an “innovative shallow water safeguard design [that] prevents the cleaner from getting stuck at pool stairs.”

That second one is the finding, because getting stuck is the SE’s own dominant owner complaint — entry stairs and shallow ledges specifically, ahead of sensor failures and of motors giving out at two to three seasons. The $20 upgrade is not a nicer trim level; it answers the cheaper model’s single most common failure.

Which means the SE is the better buy under two conditions, and only two: your pool gets genuinely full sun, and it has no shallow entry steps or tanning ledge for the skimmer to beach itself on. Under a screen cage the first condition is doing real work — Florida Solar Energy Center testing measured a cage cutting solar energy through it by 30–40%, so a caged pool is exactly where solar-only becomes a liability and the adapter earns its money.

Not for you if you have a screened pool, a shaded pool, or a beach entry — pay the $20. Betta’s own listing also warns it is not suitable for round pools under 14 ft.

Betta SE

Best for a full-sun pool

Your pick if your pool sits in full sun and has no shallow entry steps — it is the same twin-motor skimmer as the Plus for $20 less, on the deepest owner base in the category (4.4★ across 8,158).

4.4 · 8,158 owner ratingsAmazon · September 2026 · global base

“This is my reliable rockstar. I've had this running for three years straight, running non-stop, year-round in Florida with hot summers and mild winters.”— JB, Amazon · Verified owner

Pro review “I was honestly blown away by how quick and easy the Betta SE was to install and use. It was the fastest of all the robot skimmers I tested—and setup couldn't have been simpler.”Best Basic of Bob Vila's 2026 robotic-skimmer test (published 2026-07-24), scored 5/5 on Ease of Use, Performance and Value; the one catch he records is that it occasionally misses tight corners. Hands-on in residential Florida inground pools over multiple days. Their Buy-at-Amazon link resolves to B0BW38MP5C, the listing we card. Supersedes The Pool Nerd's August 2025 review, now older than a year.— Paul Rankin, Bob Vila

Pros

• The deepest owner base of any skimmer we track — 4.4★ across 8,158 ratings, and none of them free-product reviews
• $20 less than the Plus for the same twin salt-chlorine-tolerant motors and the same 200µm top-load basket
• 30+ hours of continuous running on a single charge, so it keeps skimming overnight
• Owners report multi-season life — several describe three years of year-round Florida use

Cons

• Solar ONLY — no adapter charging, which is the Plus's whole advantage and matters most under a screen cage
• Getting stuck is the dominant owner complaint — entry stairs and shallow ledges specifically; the Plus adds a shallow-water safeguard the SE does not have
• Betta's own listing says it is not suitable for round pools under 14 ft
• Rating is pooled across marketplaces (Amazon labels it "global ratings")

What owners complain aboutLifespan

Service life, not skimming: owners who love it describe it dying just past the one-year warranty or inside two seasons — LEDs and batteries failing, a third unit in a few years — and, separately, getting stuck on entry steps and in shallow water.

886 critical reviews of 8,158 (11%) at the 2026-09-04 pass; 6 of the first 10 are lifespan (dead at 6 weeks, 16 months, two years), 2 are stranding; all verified US purchases · critical reviews read September 2026

Check price at Amazon →

✓ Safety: no active recallNo CPSC recall on any Betta product — CPSC recall API re-checked 2026-09-04 (saferproducts.gov/RestWebServices/Recall, ProductName=Betta → 1 record, a FALSE POSITIVE: #16036 (2015) is a PetSmart Top Fin BETTA FISH BOWL, the aquarium-fish name collision; opened and confirmed not a pool product; "Betta SE" → 0). Class queries the same sitting: "robotic pool cleaner" and "pool cleaner" return only Aiper Seagull Pro #25187; "pool skimmer" returns 0. Positive control: "Aiper" returns its two robot recalls (#23784 Elite Pro 2023, #25187 Seagull Pro 2025), so a zero is a real answer. Solar surface unit with a small backup battery — store out of direct sun when not in use.

Best value: Aiper EcoSurfer S2

The first skimmer that makes the Betta fight for it.

The EcoSurfer S2 pairs 24/7 solar running (with a DC-adapter backup) and app control with the one thing every other challenger has lacked: a deep owner base — 4.4★ across 2,323 reviews — at about $30 under the Betta. It briefly tied the champ on the star in August and lost the tenth again in September, so this is a genuine value pick rather than a co-champion.

The honest catch: pro reviewers are cooler on it than owners are (The Pool Nerd, for one, grades it middling), and its 4 L basket is smaller than the Beatbot’s 9 L, so you’ll empty it a bit more often. But if you want a proven skimmer and want to keep $40, this is the pick.

Aiper EcoSurfer S2

Best value challenger

Your pick if you want the closest thing to the Betta's proof for less money — the EcoSurfer S2 backs a deep 4.4★/2,323 owner base with 24/7 solar running at about $350, the value pick that finally pushes the champ.

4.4 · 2,323 owner ratingsAmazon · September 2026 · incentivised base · listing-wide base · global base

“I no longer have a pool guy. I have a pool robot overlord.”— jessica garza, Amazon · Verified owner

Pro review “Aiper's EcoSurfer 2 is a skimmer on the slow side, but it makes up for speed shortcomings with outstanding longevity.”— Christopher Null, PCWorld

Pros

• Deep, proven owner base — 4.4★ across 2,323 reviews, second only to the Betta
• 24/7 solar running with a DC-adapter backup for cloudy stretches
• App control, obstacle avoidance, ~$40 under the Betta SE Plus
• The established #2 brand in the category

Cons

• The critical tail clusters on ONE failure and it lands just past the return window: propellers jamming or stopping at three to five months, with the fix being a trip back to Aiper. One owner titled the review "Don't Throw Away The Original Box". Buy early in the season and run it hard while you can still act on a fault
• Pro testers are cooler than owners (The Pool Nerd graded it middling) — an owner-vs-tester split
• The owner base is not as clean as it looks — 2 of the 13 visible review cards are free-product Vine reviews, and the score is pooled across the Blue and Gray colourways rather than describing one unit
• 4 L basket is smaller than the Beatbot iSkim's 9 L (more frequent empties)
• Loses the top-line owner rating to the Betta SE Plus by a tenth of a star, and lost it again in September 2026 — the two were level in August and are not now

What owners complain aboutDefect reports

The propellers jam and stop, on a robot that otherwise impresses people — nine of the ten critical cards are 3-star and most open with praise before the fault. "The propeller jams and must [be cleared]"; "worked nicely for 4 months then suddenly the right propeller stopped turning"; "broke in 2 months". The second theme is solar charging falling short of the pitch: one owner running it seven weeks reports the panel not keeping up on anything less than full sun. A repeat complaint worth knowing before you buy: "don't throw away the original [packaging]" — several of these go back, and owners who kept the box had an easier time.

200 critical of 2,323 (8.6%) at the 2026-09-09 read; on page one a jammed or dead propeller appears in 3 independent reviews and solar-charging shortfall in 2, with 9 of 10 cards 3-star and none of them Vine. The failures cluster at THREE TO FIVE MONTHS of use — "worked nicely for 4 months", "quit working after just a few months", one unit bought March 2025 that seized the following season — i.e. just past the return window · critical reviews read September 2026

Check price at Amazon →

✓ Safety: no active recallNo active CPSC recall found (checked July 2026). Solar surface unit with a small backup battery — store out of direct sun when not in use.

Want the floor cleaned too? Aiper’s Scuba V3 + EcoSurfer S2 duo

A skimmer only handles the surface. If you’re set on Aiper and want the floor, walls, and waterline covered as well, Aiper sells an “Experts Duo” bundle — this same EcoSurfer S2 paired with its Scuba V3 floor robot for about $1,150, cleaning the surface and the floor at the same time. It’s the standard Scuba V3, not the pricier V3 Ultra, and the bundle’s rating pools across listings — so trust the EcoSurfer S2’s own 4.4★/2,323 base for the skimmer half. Worth knowing before you buy the bundle for the floor robot: as of August 2026 the Scuba V3 has dropped out of Aiper’s current Scuba-series line-up and its US sitemap, though its product page is still live and it’s still stocked on Amazon. (We previously said that page returned a 404. That was our error — Aiper serves its current models at one URL shape and the V3 at another, and we checked the wrong one.) So the skimmer half is a current model and the floor half is one the maker has stopped featuring — de-emphasis, not discontinuation.

Aiper Scuba V3 + Surfer S2 Combo

Floor robot + surface skimmer, bundled

Your pick if you want both jobs handled the Aiper way — the Surfer S2 (our value skimmer pick, 4.4★/2,323) clearing the surface while the Scuba V3 floor robot works below — bought together for about $1,150.

Pros

• Pairs our proven value skimmer (Surfer S2, 4.4★/2,323) with Aiper's current Scuba V3 floor robot (8,500 GPH)
• Covers both jobs at once — the Scuba V3 vacuums floor/walls/waterline, the Surfer S2 skims the surface 24/7 on solar
• Buys the pair together (~$1,150)
• Both cordless; the Surfer S2 adds a DC-adapter backup for cloudy stretches

Cons

• The bundle listing pools its rating (4.4★/96) — lean on the individual Surfer S2's deep, proven base (4.4★/2,323), not the combo's
• Sealed batteries on both — no replacement pack, so each unit is the long-term consumable
• We rate the Surfer S2 as a skimmer but don't separately test the Scuba V3 floor robot (it is Aiper's current V3, NOT the pricier V3 Ultra our premium showdown flags)
• If you only need the surface cleaned, the standalone Surfer S2 (~$350) is the smarter buy

Check price at Amazon →

✓ Safety: no active recallNo active CPSC recall found (checked July 2026). Both are cordless with sealed batteries — the robot and skimmer are each the consumable when their cells fade.

Biggest basket, newest: Beatbot iSkim

If you hate emptying the basket, this is your robot.

The Beatbot iSkim (the standard model — not the iSkim Ultra we skip elsewhere, which lists at $999 and sells for about $699) brings the biggest basket in the category at 9 L and a ~28-hour battery on top of solar, so it runs longest and needs the fewest trips to empty. Owners rate it 4.4★.

Its price is the catch, and it moved against us. We previously published this as the ~$319 value pick. The listing we link now reads $459, which makes it the most expensive skimmer on this page rather than the cheap one — that figure came from a Beatbot direct-to-consumer promotion on a channel we do not sell through, and it should never have been stored as the Amazon price. Corrected 8 September 2026. Beatbot does sell the identical machine on a second listing at about $358 with the charger included, but that listing carries just five ratings against the 183 behind the one we link, so we point you at the proven listing and tell you the cheaper one exists.

The honest catch is simply age: it launched in 2026, so that rating rides a base under 200 reviews — strong, but not yet proven over seasons the way the Betta and Aiper are. If you want the most convenience and don’t mind being an early adopter, it’s a genuinely good buy near the ~$358 charger-bundle price — and a harder sell at what the proven listing reads today.

Beatbot iSkim

Newest — biggest basket

Your pick if you want the biggest debris basket and the longest unattended run — the iSkim's 9 L basket and ~28-hr battery mean far fewer empties, and early owners rate it 4.4★ on a base that's still building.

4.4 · 183 owner ratingsAmazon · September 2026 · listing-wide base

“I never realized how much time I was spending skimming my pool until I bought the Beatbot automatic pool skimmer.”— KH, Amazon · Verified owner

Pro review “I never once had to grab the manual skimmer to catch something it missed.”— Donna Enzmann, Reviewed

Pros

• Biggest basket in the category — 9 L, so far fewer trips to empty it
• ~28-hour battery plus solar for genuinely long unattended runs
• Strong early owner rating (4.4★) and the newest design here
• Beatbot sells the identical machine on a second listing (B0HBVQW933) at about $358 WITH the charger included — about $100 less than the deep-base listing we must link for our rating evidence

Cons

• It no longer undercuts the Betta, which reverses its old case: at $459 on the listing we link it is the DEAREST skimmer we card — above the $399.90 Betta Flex and $100 clear of the $359.99 Aiper EcoSurfer S2
• Owner base is still building (183 reviews — early data)
• No long-term reliability track record yet (launched 2026)
• Beatbot's premium iSkim Ultra is our category SKIP — this cheaper standard model is the better buy, not the $999 one

What owners complain aboutCapability limit

It pushes debris instead of collecting it, and the solar does not carry it. On the job itself: "pushes debris around the pool rather than pick it up. If it reverses it re[leases it]"; "product did not meet my expectations at all"; and a detailed owner who calls the idea good and the delivery short. On power: "solar power is not enough", "solar unit not great", and one who found no charging cable in the box and a weeks-long wait for one. Reliability appears as a 45-day cliff — "the skimmer bot worked well for about 45 days" — plus a failed right motor, and needing to press mode or power several times a day to keep it running. One cosmetic note: the surface scratches easily.

10 critical cards read on page 1 of the 153 ratings held at the August 2026 read; pushing rather than collecting debris appears in 3 independent reviews, solar or charging shortfall in 3, and a motor or restart failure in 3. 10/10 Verified Purchase, 0 Vine. · critical reviews read August 2026

Check price at Amazon →

Also at: Amazon

✓ Safety: no active recallNo active CPSC recall found (checked July 2026). Solar surface unit with a rechargeable battery — store out of direct sun when not in use.

Want the floor cleaned too? The Sora 10 + iSkim bundle

A surface skimmer only handles the top of the water — it won’t vacuum the floor, walls, or waterline. If you want both jobs done, Beatbot sells the iSkim paired with its Sora 10 floor robot as a bundle for about $799, a bit less than buying the two separately — a tidy one-purchase option if you were going to add a floor robot anyway. Fair warning: the bundle listing is brand-new with barely any owner history, so trust the individual iSkim (4.6★) and Sora ratings, not the combo’s.

Beatbot Sora 10 + iSkim Combo

Floor + surface, bundled

Your pick if you want both jobs handled — floor, walls, and waterline plus the surface — and you'd rather buy the pair together: the Sora 10 + iSkim bundle runs about $799, a bit less than buying the two separately.

Pros

• Covers both jobs — the Sora 10 vacuums floor/walls/waterline, the iSkim clears the surface
• Buys the pair together (~$799), a bit less than separately
• Both cordless; iSkim's 9 L basket + 24/7 solar, Sora's 6,800 GPH suction
• One purchase, one 2-year coverage

Cons

• The bundle LISTING is brand-new with almost no owner history — lean on the individual iSkim (4.4★/183) and Sora ratings, not the combo's
• Sealed batteries, no replacement pack (Beatbot brand catch) — the robots are the consumable long-term
• If you only need the surface cleaned, the standalone iSkim (~$339) is the smarter buy

Check price at Amazon →

✓ Safety: no active recallNo active CPSC recall found (checked July 2026). Both are cordless with sealed batteries — no replacement pack sold, so each is the consumable when its cells fade (Beatbot's brand-wide catch).

Cheapest, but skip it: Aiper EcoSurfer S1

The one you buy on price and regret on a cloudy Tuesday.

The older EcoSurfer S1 is the cheapest skimmer here at about $285, with solar-plus-adapter charging, app control, and a pool-temperature monitor. On paper it’s fine. In practice, its 3.6★ across 305 owners is dragged by a consistent complaint: charging. Owners report the battery or the cord charging quitting within a season — “won’t hold a charge,” “doesn’t charge on the cord.” One owner put it plainly: “Simple design but doesn’t charge on cord now.”

Not for you if you want it to last. For a little more money the EcoSurfer S2 rates a full star higher on a base seven times deeper. Buy the S2.

Aiper EcoSurfer S1

Cheapest — but charging-flawed

Your pick if you want the cheapest Aiper and don't mind a gamble — at about $285 it undercuts the field, but enough owners report the charging quitting that it musters only 3.6★; the S2 is a little more and a different league.

3.6 · 304 owner ratingsAmazon · August 2026

“Simple design but doesn't charge on cord now. Will charge from sun but charger should be durable enough to last.”— Rachel Pritchett, Amazon · Verified owner

Pros

• Cheapest surface skimmer here (~$285)
• Solar + DC-adapter charging, app control, pool-temperature monitor
• ~5 L basket

Cons

• Charging is the weak spot — a real thread of owners report the battery or cord charging quitting within a season (the main reason it sits at 3.6★)
• Superseded by the Surfer S2, which rates a full star higher on a far deeper base
• Shorter unattended runtime than the S2/iSkim

What owners complain aboutDefect reports

Charging failure — units that stop holding a charge, or will not power on at all.

the dominant theme across the critical reviews · critical reviews read August 2026

Check price at Amazon →

✓ Safety: no active recallNo active CPSC recall found (checked July 2026). Solar surface unit with a rechargeable battery — the recurring owner complaint is charging reliability, not a safety recall.

What to look for in a value skimmer

• A charging backup, not solar-only — the difference between a skimmer that keeps running through a cloudy week and one that beaches itself. The Betta’s AC backup and the Aiper/Beatbot adapters are why they’re here; solar-only is the S1’s weak spot.
• Owner base over spec sheet — these all run similar hardware, so a deep, clean owner rating is the real signal. Prefer thousands of verified owners to a shiny feature list.
• Basket size for your debris load — heavy leaf drop? The Beatbot’s 9 L basket means fewer empties. Light load under a screen cage? Any of them is fine.
• The screen-enclosure factor — a Florida pool cage cuts solar charging 30–40%, so lean on the backup charging; the cage also blocks most leaves, lightening the job. (More in our full robotic skimmer roundup.)

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