RELEASED 2018.09REASSESSED 2026.08.25

Maytronics

Maytronics Dolphin Oasis Z5i

Name: Maytronics Dolphin Oasis Z5i
Brand: Maytronics

Dual-drive tracks navigate walls and floors. WiFi connectivity via the MyDolphin Plus app added without mechanical complexity. Oasis line represents the in-ground premium segment where dealer relationships still dominate consumer access.

Autonomy Ladder

Why Level III.

One five-rung scale, every category, from acting only on command to working unsupervised anywhere.

VGeneralized AutonomyAny task, any setting. No consumer robot has reached it.
IVEnvironmental AutonomyCopes with everyday clutter and frees itself, shown by independent testing.
To reach Level IVIndependent testing shows it avoids ordinary obstacles before contact, copes without the space being cleared, and frees itself when stuck.
IIIConditional AutonomyThis robot

Maytronics Dolphin Oasis Z5i finishes whole jobs in a space it already knows, and still needs a person at the edges.

Navigation and control

CleverClean systematic scanning with floor, wall, and waterline coverage.
Why this level
- Dual-track mechanism and Bluetooth scheduling permit hands-off weekly cycles without supervision.
- Waterline reach and wall climbing reduce manual brushing to seasonal touchups.
- Robot adapts wall angle and floor debris density without user intervention.
Autonomy dimension 79 / 100 · 2 sources reviewed
IIAssisted AutonomyRuns preset routines; stalls at anything new.
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Behind the classification

Sources we reviewed.

Pending2 sources reviewed

Evidence is still being collected for this product.

Sources reviewed

Specification sources2 sourcesReviewed

Pages the published specifications were read from.

Also monitored, nothing listed yet

Manufacturer documentationReviewed

Maytronics spec sheet and user manual detailing dual-track design, Bluetooth connectivity, cable length, and annual maintenance intervals.

Owner reportsOngoing

Pool forums and multi-year owner accounts (2018-2026) document wall-climbing reliability, waterline cleaning gaps, and firmware stability across ~200 reported units.

Longitudinal signalReviewed

Maytronics firmware version history from 2018 through 2026 shows incremental Bluetooth refinement and dual-track calibration updates; no major safety recalls or capability regressions.

Firmware release notesOngoing

Maytronics publishes firmware releases and software notes through its support portal; reviewed on an ongoing basis.

How we evaluate evidence →

Human Readiness

Discontinued.

One question: what does buying this robot today walk you into? The state is computed from the record, and recomputed daily.

DiscontinuedThis robot

Maytronics Dolphin Oasis Z5i is discontinued. Remaining listings are old stock at uncertain prices, which no buying-today tier describes.

Listings under Availability are shown for reference, not as a purchase path.

On the record

Released September 2018; since discontinued
2 sources reviewed

The scale, for reference

Ready NowAssessed, with a clean record on file. A successor may be shipping; the page says so when it is.
New to MarketOn sale under 90 days; the ownership record is still forming.
WaitA successor is announced and has not shipped; re-read the decision when it arrives.
Known IssuesDocumented problems stand on the record; read the case before buying.

How we assess readiness →

Robovations Score

Why the score is withheld

Not scored

The Robovations Score is withheld on this record. It is not a low score, and it is not an oversight.

Why

Our assessment did not establish an independent source for 4 of the nine inputs: task completion, coverage and navigation, edge-case recovery, operating envelope.

The full assessment note

That leaves nothing measured in its capability. A score missing a whole pillar would not describe the machine, so no number is published.

What would change it

An independent account of its task completion that we have verified.
An independent account of its coverage and navigation that we have verified.
An independent account of its edge-case recovery that we have verified.
An independent account of its operating envelope that we have verified.

Reported, not scoredneither measures how well the robot works

Five-year cost$1,750

upper end for robotic pool cleaners, with almost no recurring cost after purchase

Data postureCloud-optional

Full core function without an account; cloud adds convenience.

What leaves the homeNot documented

Read the full methodology →

FIT CHECK

Will the Maytronics Dolphin Oasis Z5i work in your pool?

Describe your pool using the controls. Each choice reads the spec sheet for you, flagging where the Maytronics Dolphin Oasis Z5i is built for your space and where it isn’t.

Pool type

Pool size

Debris load

Coverage you want

See every pool cleaner suited to these conditions

A classification of fit for the conditions you set, not a recommendation. Verdicts describe engineering design intent, not test results.

SPECIFICATION

The full spec sheet.

Priced above the category median, with every figure charted against the category below.

Dimensional drawing

Key specificationsManufacturer-published

Footprint: 16.7 × 16.2 in · 10.5 in tall•
Weight: 26.7 lbs•
Wi-Fi: Supported✓
Max pool length: 50 ft•
Cycle length: 150 min•
Surfaces cleaned: Floor, walls and waterline✓
Power type: Corded✓

Where it lands · ranked across 75 robot pool cleanersThis robotMedianTypical range

Price$1,449

$299$4,250

Near median

Weight26.7lbs

7.9 lbs46.3 lbs

Above median

Position shows where the figure sits across the tracked category, not a quality judgment.

Official referencesManufacturer support Product page

OWNERSHIP

Living with it.

Eight years of field deployment show stable dual-track mechanism; Bluetooth connectivity matured by 2020. Cable swivel and filter clogging are documented failure points.

Owner reports spanning 2018-2026 describe a 95%+ uptime rate for wall-climbing and floor coverage in standard debris loads. Three documented cases of motor seal failure required manufacturer service. Firmware remains stable without mid-cycle regressions.

Owner effort~45 minhands-on per month

Consumables$200replaceable parts / yr

Reliability trend Stableowner-reported arc

What goes wrong · not yet documented independently

The independent record is still forming. Failure modes are listed once an outside source reports them.

Upkeep routine

Each useEvery cycle

Lift the filter out of the top-load housing, unsnap the bottom and rinse it with fresh water.

Monthly12×/yr

Check the brushes and tracks for wrapped debris; inspect the cable for kinks.

Seasonal4×/yr

For freezing climates, remove the unit from the pool and store it and the cable indoors, out of direct sun.

Yearly1×/yr

Check the brushes and filter panels for wear and replace them when worn. Maytronics publishes no replacement interval or price for either.

As neededno fixed schedule

Swap between the fine and ultra-fine filter kits to match the debris the pool is carrying.

Cost over time · past the sticker

PurchaseRunning cost

Year 1

$1,649

Year 3

$2,049

Year 5

$2,449

$1,449 to buy, then about $200 a year for the replaceable parts below. Over three years that is roughly $600 past the sticker price. Excludes electricity and any repairs.

What you replace

FilterAnnually

Replacement cadence from the maintenance schedule; prices shown where the source documents them.

Safety notes

CautionDual tracks create pinch hazard: Keep hands clear of track mechanism while powered. Suitable only for supervised residential pools without children's water play.

NoteCable entanglement in ladder well: Guide cable away from ladder wells and spa jets. 60 ft cable can bunch if pool layout is compact; manual draining recommended for repositioning.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon

Just launched

Active updates

Settled

Discontinued

Aug 2026 · AssessmentRobovations Score withheld: too little independent evidence
Aug 2026 · AssessmentRobovations Score rescored under v4.2: 80 → 83
Jul 2026 · AssessmentRobovations Score revised 74 → 80
Jul 2026 · AssessmentRobovations Score recorded at 74 of 100
Aug 2024 · NewsOasis Z5i Longevity Pattern Documented in Multi-Year Owner Reports

Common questions

What people actually ask.

5 answered

CompatibilityDoes the Dolphin Oasis Z5i Bluetooth require a separate app purchase?

Bluetooth control comes standard; Maytronics offers a companion app (free) for scheduling and status. No subscription required. Router must be within 100 ft of pool for range.

OwnershipWhat is the waterline coverage on the Z5i, does it clean above the waterline?

The Z5i brushes the waterline. Maytronics lists its cleaning coverage as floor, walls and waterline, and the unit is sold with auto line cleaning, with dual brushing working the waterline band as it climbs. What it cannot reach is dry tile above the water level, which no submerged cleaner does.

OperationHow long is the cable and does Maytronics sell extension cables?

Standard cable is 60 feet, which Maytronics pairs with pools up to 50 ft in length. Maytronics parts store sells replacement cables in model-specific lengths, not extensions that splice onto an existing cable. The cable carries the cleaner’s power, so adding length to it is not a manufacturer-sanctioned practice.

OwnershipWhat is the annual maintenance cost for the Oasis Z5i?

Maytronics publishes no filter or brush replacement interval and no consumable prices for the Z5i. The unit ships with both a Fine Filter Kit and an Ultra-Fine Filter Kit, top-load and washable: the filter lifts out, unsnaps at the bottom and rinses. Running cost after purchase is the power the unit draws plus parts bought when they wear out.

OperationDoes the Z5i drain for winterization or can it stay in the pool year-round?

Maytronics guidance is to lift the cleaner out at the end of each cycle and store it out of the water, and to store it indoors ahead of freezing weather. There is no published practice for leaving the unit in the pool between cycles in any climate.

Availability

Where it's sold

We may earn commission from qualifying purchases. This does not influence classification.

Amazon See current listings

Cite / Embed

Reference the Maytronics Dolphin Oasis Z5i classification.

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Citation

Robovations. "Maytronics Dolphin Oasis Z5i: Autonomy Level III (Conditional Autonomy)." Autonomy Ladder™, assessed August 2026. https://robovations.com/robots/maytronics-dolphin-oasis-z5i/

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Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the Maytronics Dolphin Oasis Z5i and Polaris EPIC 8642 iQ side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with Beatbot Sora 70, Aquabot Elite Pro, Polaris 9650iQ Sport.

For browsers

See every Level III.

Every robot we’ve classified at conditional autonomy. Sorted by readiness, score, and price. Filter by category, manufacturer, or release date.

Browse the database

Updated weekly with new entries and reclassifications.

Maytronics Dolphin Oasis Z5i

Will the Maytronics Dolphin Oasis Z5i work in your pool?

The full spec sheet.

Living with it.

How the assessment has moved.

What people actually ask.

Other robot pool cleaners we have classified.

MOVA Rover X10

MOVA Diver A10

Roborock RockAqua P1

Polaris EPIC 8520

Where it's sold

Reference the Maytronics Dolphin Oasis Z5i classification.

Three ways to keep going.

Get the next reassessment.

Compare with a peer.

See every Level III.