Degrii
Degrii Zima Lite
- Autonomy
- IIIConditional
- Score
- Not scored
- Readiness
- Not assessed
- Price
- $699list
ComparisonDegrii Zima Lite and Seauto SAT40
Seauto
Seauto SAT40
- Autonomy
- IIIConditional
- Score
- Not scored
- Readiness
- Not assessed
- Price
- $599list
Up to three
Autonomy Ladder
- IManual
- IIAssisted
- IIIConditional
- IVEnvironmental
- VGeneralized
All robot pool cleaners. Every figure below is placed against the whole class, so a gap can be read against how much the class itself varies.
Where each one suits you.
The conditions each robot was assessed against, side by side. Rows marked in gold are where these machines genuinely differ.
| Condition | Degrii Zima Lite | Seauto SAT40 |
|---|---|---|
| Pool type | ||
| In-groundthey differ | DependsMaximum obstacle clearance is 3.9 in; in-ground drains, ladders or fittings taller than that can stop it. | GoodManufacturer designs it primarily for inground pools up to 3,200 sq ft and 13 ft deep, matching this setup directly. |
| Above-groundthey differ | GoodNo above-ground-specific validation was found; the same 3.9 in obstacle-clearance limit that concerns in-ground drains applies here too. | DependsManufacturer states above-ground use is possible but designs the SAT40 primarily for inground pools; verify fit before buying. |
| Mixed setupthey differ | GoodDual-radar 3D path planning for floor, wall and waterline coverage is not restricted to either installation type in the specs. | DependsManufacturer positions this as an inground-first design; above-ground compatibility is only described as possible, not primary. |
| Pool size | ||
| Small (< 400 sqft) | GoodEven the more conservative 1,614 sq ft manufacturer figure is well beyond what a small pool needs to clean each cycle. | GoodWell within the manufacturer's 3,200 sq ft coverage rating and 240-minute runtime for a single cordless cycle. |
| Medium (400 – 800) | GoodA medium pool sits safely under both the 1,614 sq ft EU figure and the 3,800 sq ft US figure Degrii publishes. | GoodStill comfortably inside the 3,200 sq ft rated area, with margin left in the 240-minute runtime for full coverage. |
| Large (> 800) | DependsDegrii's own EU and US listings disagree on maximum coverage (1,614 vs 3,800 sq ft); confirm against the larger pool before buying. | DependsManufacturer caps rated coverage at 3,200 sq ft; confirm your pool's exact size before buying if it runs larger. |
| Debris load | ||
| Fine (sand / silt) | GoodBoth filter baskets are rated at 180 microns, with no finer mesh option documented for capturing very fine silt. | GoodDual filtration includes a 10-micron ultra-fine cartridge specifically for capturing fine debris like sand and silt. |
| Leaves / large debristhey differ | GoodDual 180-micron filters with 6.5 L combined capacity are sized for leaf and larger debris loads. | DependsThe 250-micron cartridge is designed for coarser debris, but no independent source confirms how it performs on leaves. |
| Algae / heavy fouling | DependsNo independent test of cleaning performance against algae was located; available coverage largely restates manufacturer specifications. | DependsNo published or independently verified data addresses how the SAT40 handles algae or heavy fouling specifically. |
| Coverage you want | ||
| Floor only | GoodFloor mode is one of five selectable modes, running independently of the wall and waterline passes. | GoodManufacturer states floor cleaning in every cycle via AI Sonar Navigation, the least demanding of the SAT40's claimed coverage modes. |
| Floor + wallsthey differ | GoodA dedicated Wall mode cleans walls separately from Floor mode, among the five selectable cleaning modes. | DependsManufacturer claims wall coverage in every cycle, but no independent source confirms how consistently walls are actually reached. |
| Floor + walls + waterlinethey differ | GoodOverall mode covers floor, walls and waterline together in one cycle, driven by the dual-radar 3D path planning. | DependsFull floor, wall and waterline coverage is a manufacturer claim only; independent confirmation of cleaning completeness was not accessible. |
A robot being poor for a condition is a fact about fit, not a fault. “Depends” means the record names a limit worth reading, not that the answer is unknown.
How far apart is a long way?
A number only means something next to the spread it sits in. Each track is the real range across every classified robot in the class, with the median marked.
Price69 with a published figure
$699$599
- Degrii Zima Lite$699
- Seauto SAT40$599
$299median $1,249$4,250
Runtime37 with a published figure
180 min240 min
- Degrii Zima Lite180 min
- Seauto SAT40240 min
90 minmedian 180 min1,800 min
Weight66 with a published figure
23 lbs19.8 lbs
- Degrii Zima Lite23 lbs
- Seauto SAT4019.8 lbs
7.9 lbsmedian 20.9 lbs46.3 lbs
Not compared, because fewer than two of these robots carry a published figure: Charge time, Noise, Height.
What the numbers leave out.
Written on each record, and the only thing here every robot on the site carries.
The trade-off
What each design gives up to be good at what it is good at.
Degrii Zima Lite
Dual-ultrasonic-radar 3D path planning across floor, walls and waterline is a real capability by manufacturer design, but Degrii’s own regional listings disagree on how large a pool that planning actually covers, and this research could not reconcile the two figures.
Auto-parking at the nearest wall reduces how far a robot has to be fished from open water, but it still requires manual lifting rather than a full self-exit, so the retrieval task is reduced, not eliminated.
Seauto SAT40
The manufacturer claims coverage of all core pool surfaces (floor, walls, waterline) plus corners, but no independent source confirms how completely or consistently that coverage happens in practice.
A lower list price than some competitors in this batch comes with a thinner independently verifiable record: no confirmed warranty term and no accessible third-party reliability evidence.
Who each one is wrong for
Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.
Degrii Zima Lite
- Buyers who need a single, confirmed maximum-coverage figure before purchase
- Degrii's own EU and US listings state different maximum pool sizes for the same product, and this research could not resolve which applies.
- Pools with tall drains, ledges or fittings near 4 in or taller
- The manufacturer's documented maximum obstacle-clearance height is 3.9 in.
- Buyers who require independently verified cleaning performance before purchase
- No independent, non-manufacturer test of the Zima Lite was located during this research.
Seauto SAT40
- Buyers who need independently verified reliability data before purchase
- No non-manufacturer review, forum, or repair source for the SAT40 was accessible during this research.
- Buyers who require a stated, confirmed warranty term
- No warranty term was found on the manufacturer's product page.
- Above-ground pools as the primary use case
- The manufacturer states the unit is designed primarily for inground pools, though it states above-ground use is possible.
What stays your job
The upkeep ownership hands back to you, whatever the autonomy level says.
Degrii Zima Lite
- After every use: Retrieve the robot from the wall where it auto-parks (it stays in the water otherwise), empty the dual 180-micron filter baskets, and rinse the mesh with a hose.
- After every use: Recharge the 9,300mAh battery between runs; a full charge covers up to 180 minutes of cleaning.
- Weekly: Inspect the scrubbing brushes for wear and clear any wrapped hair or fibers.
- Monthly: Wipe down the hull, check the 6.5 L basket mesh for tears, and confirm firmware is current in the Degrii app.
- Seasonally: Store the robot indoors over the closed season and do not leave the lithium battery fully discharged in storage.
- As needed: Replace the scrubbing brushes and filter cartridges as they wear. Degrii’s warranty treats both as one-year consumables but publishes no replacement interval or part pricing in the material reviewed.
Seauto SAT40
- After every use: Rinse both filtration cartridges (the 250-micron large cartridge and the 10-micron ultra-fine filter) with a hose; Seauto states rinsing after each use prevents buildup.
- After every use: Recharge the 10,400mAh battery between runs; Seauto’s own page states a 4.5-hour charge time, while one third-party review says about 3 hours.
- Weekly: Check the cartridge mesh for tears and clear any debris lodged in the intake ports.
- Monthly: Wipe down the hull and inspect the cartridge seals for wear.
- Seasonally: Store the unit indoors over the closed season and do not leave the lithium battery fully discharged in storage.
- As needed: Replace the filter cartridges when the mesh wears through. Seauto publishes no replacement interval, part pricing, or warranty term on its product page.
How much each of these is standing on.
Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.
| Robot | Evidence status | Sources reviewed | Last assessed |
|---|---|---|---|
| Degrii Zima Lite | Pending | 5 | Aug 2026 |
| Seauto SAT40 | Pending | 3 | Aug 2026 |
Evidence status counts the sources behind a classification, not their kind. A high count can be maker documentation and price coverage, so read it as how much was reviewed rather than as independent testing. How we weigh evidence.
Keep going.
The full recordDegrii Zima LiteSpecifications, evidence, the Fit Check in full, and every tracked change.
The full recordSeauto SAT40Specifications, evidence, the Fit Check in full, and every tracked change.
Written comparisonRobot pool cleaners: what does $500 more actually buy?We have examined this pairing in full, with a stated finding.Robovations classifies robots; it does not rank them. Nothing on this page is a recommendation, and no manufacturer influences a classification or its placement here.
Add a robot
Comparing across classes is allowed — the page will switch to per-class positioning and tell you it has.