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The Proteus DX3, DX4 and DX5i and the Oasis Z5i are separate retailer editions built on platforms related to our Max-Series™ and ProLine™. Compare all four by pool size, coverage, timer and app, then see the Escape, Cayman, Quantum, Premier and Sigma we ship free.
The Proteus DX3 is a 33-ft floor-and-wall robot; the DX4 and DX5i scrub the floor, walls and waterline of pools up to 50 ft with a weekly timer, the DX5i adding the app; and the Oasis Z5i is the heavy flagship with 4,500 GPH suction, an ultra-fine kit and a 3-year warranty.
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| Proteus DX3 | Proteus DX4 | Proteus DX5i | Oasis Z5i | |
| Price | $629 list | $1,099 list | $1,369 list | Ask a dealer |
| Pool Size | Up to 33 ft | Up to 50 ft | Up to 50 ft | Up to 50 ft |
| Cleans | Floor and Walls | Floor, Walls and Waterline | Floor, Walls and Waterline | Floor, Walls and Waterline |
| Cycle | 2 hr | 2 hr | 2 hr | 2.5 hr |
| Scrubbing Brushes | 1 active | 2 active | 2 active | 2 |
| Suction | 4,000 GPH | 4,000 GPH | 4,000 GPH | 4,500 GPH |
| Filter | Fine Filter | Fine Filter | Fine Filter | Fine Filter + Ultra-Fine Filter |
| Weekly Timer | ||||
| App | myDolphin™ Plus | myDolphin™ Plus | ||
| Remote Control | ||||
| Swivel Cable | ||||
| Weight | 14.8 lb | 18.5 lb | 17.4 lb | 26.7 lb |
| Warranty | 2 years | 2 years | 2 years | 3 years |
| Details | Details | Details | Details | Details |
Specifications as published by Maytronics for each model. A dash means the spec sheet does not list it. "Details" opens the model's spec, parts and troubleshooting page.
4 models with the Maytronics list price on each. Open a model for its full spec sheet, compatible parts, manual and troubleshooting guide.
33 ft, floor & walls. Cleans floor and walls on a 2 hr cycle.
Waterline & timer, 50 ft. Cleans the floor, walls and waterline on a 2 hr cycle.
Adds the app. Cleans the floor, walls and waterline on a 2 hr cycle.
4,500 GPH, 3-year warranty. Cleans the floor, walls and waterline on a 2.5 hr cycle.
The Proteus and Oasis are not ProLine™ or Max-Series™ models. They are separate retailer editions that share platforms, parts and fixes with the Escape, Cayman, Quantum, Premier and Sigma. The DX3 is the 14.8-lb entry robot; the DX4 and DX5i are the 18-lb, 50-ft waterline cleaners; and the Oasis Z5i is the 26.7-lb flagship.
Compare pool size and coverage first, then controls. Only the DX5i and Oasis Z5i connect to the myDolphin™ Plus app.
The DX4 and DX5i share 50-ft coverage, two active brushes, 4,000 GPH suction, a fine filter and an anti-tangle swivel. The DX5i adds Wi-Fi and the myDolphin™ Plus app so you can schedule and start cycles from your phone.
Start with your pool length and the coverage you need, then choose the filtration and controls that fit your routine. For recommendations across every Dolphin family, read our guide to the best robotic pool cleaners →
The Oasis Z5i runs 2.5-hour cycles with 4,500 GPH suction and a combine brush, ships with an ultra-fine filter kit and carries a 3-year warranty. At 26.7 lb it is a true in-ground flagship, the Oasis counterpart to our Dolphin ProLine™.
Compare the ProLine™
The DX3 climbs walls but stops below the tile line; the DX4, DX5i and Oasis scrub the waterline, where sunscreen and pollen collect.
Compare Coverage
The robots behind these editions are the ones we ship free: the Dolphin Max-Series™ Escape, Cayman and Quantum with the Gen-2 MaxBin™ and HyperBrush™, and the Dolphin ProLine™ Quantum, Premier and Sigma with commercial-grade motors and NanoFilters™ in the box, each with a 2 to 3-year warranty and a 30-day trial. Talk to a Dolphin specialist about which flagship matches the Proteus or Oasis you are looking at.
Explore the Max-Series™
Every robot below ships free from our warehouse with a 30-day trial, the full Maytronics warranty and live help from a Dolphin specialist. The Quantum belongs to both collections.
Commercial-grade motors, NanoFilters™ in the box, full waterline cleaning and the longest warranty Dolphin offers: 2 to 3 years.
From $1599
The oversized Gen-2 MaxBin™, HyperBrush™ scrubbing and HyperGrip™ tracks, with a full 2-year warranty on every robot.
From $659
Each model page carries its spec sheet, the genuine parts that fit it, the user manual and a problem-first troubleshooting guide from the Maytronics support library.
Dolphin sells different robots through different channels: our flagships ship free from here, the Nautilus and Explorer lines through us and Amazon, and the Active, Premium, T-Series, S-Series and M-Series through pool stores. Every lineup has its own comparison page.
Dolphin ProLine™
Quantum, Premier, Sigma
Ships free from us
Dolphin Max-Series™
Escape, Cayman, Quantum
Ships free from us
Dolphin Nautilus
Pool Up, CC, CC Plus, Pro, Supreme, Titan, EON
Ships free from us
Dolphin Explorer™
E10, E20, E30, E50, E70
Ships free from us
Dolphin Liberty
Liberty 200, 300, 400, 600
Ships free from us
Dolphin EON
EON 100, EON 120D
Cordless, cleans steps and corners
Dolphin Wave
Wave 60 to Wave 300 XL
Ships free from us
Dolphin Active
Active 10 to 60, 2000, 3000
Pool-store exclusive line
Dolphin Premium
Premium 10 to 60, 2000, 3000
In-store edition of the Active
Dolphin T-Series
T15 to T60, T2000, T3000
Pool-store edition in lime trim
Dolphin S-Series
S50 to S400, S2000
Specialty-retailer line
Dolphin M-Series
M400, M550, M600
Specialty-retailer flagships, 3-yr warranty
Dolphin Advantage & Echo
Advantage, Ultra, Pro, Echo
Doheny's and retailer editions
Dolphin Proteus & Oasis
DX3, DX4, DX5i, Oasis Z5i
You are here
Niya by Maytronics
Sonar, Tracker, Aquasweep
Value cordless cleaners from $149
Dolphin Skimmi
Skimmi, Skimmi 300
Ships free from us
Certified Open Box
Refurbished and open-box Dolphins
Ships free from us
Compare the Proteus and Oasis, or shop the Max-Series™ and ProLine™ robots we ship free with a full manufacturer warranty.
