# Dolphin (Maytronics) Nautilus EON 120d vs Polaris FREEDOM

As of Oct 26, 2026, the Dolphin (Maytronics) Nautilus EON 120d costs $1,199 and the Polaris FREEDOM costs $1,199. Pick the Dolphin (Maytronics) Nautilus EON 120d for fine dirt and sun ledges. Pick the Polaris FREEDOM for in-ground pools up to 50 ft without a cord.

Prices checked Oct 26, 2026. HTML version: https://robotsforthat.com/vs/dolphin-nautilus-eon-120d-vs-polaris-freedom/

## Side by side

| | Dolphin (Maytronics) Nautilus EON 120d | Polaris FREEDOM |
|---|---|---|
| Price | $1,199 | $1,199 |
| 3 year cost | $1,199 | $1,199 |
| Our score | Not scored yet | Not scored yet |
| Rank in Pool | #11 | #12 |
| Status | on sale | on sale |
| Warranty | 1 year (Nautilus EON 120d listing) | 2 years limited |
| Pool types | In-ground and above-ground; rectangular, round, free form, kidney | In-ground only |
| Cleans | Floor, walls, waterline, steps, sun ledges as shallow as 8 in, corners | Floor, walls and waterline; floor only and waterline only modes |
| Power | Cordless, lithium-ion (capacity not published) | Cordless lithium ion |
| Runtime | Cycles of 1.5, 2 or 2.5 h; Maytronics blog claims up to 4 h per charge; UltraRun short cycles claimed to last up to 2.5 weeks per charge | Up to 2.5 h |
| Charge time | n/a | 4 h per Leslie's; under 5 h per Polaris |
| Filter | DebrisLock ultra fine backwash filter, top access | 4 L transparent all purpose filter canister |
| Max pool size | Pools up to 50 ft long | Up to 50 ft |
| App | Maytronics One app for scheduling, monitoring and alerts | iAquaLink app for modes, charge status and cycle alerts |
| Weight | 24.255 lb | 20 lb |
| Warranty | 1 year on the Nautilus listing (3 years on the store exclusive EON 120d listing) | 2 years limited |
| Best for | fine dirt and sun ledges | in-ground pools up to 50 ft without a cord |
| Skip if | you hate fiddly filter cleaning | you want corded level suction |

## What reviewers found

### Dolphin (Maytronics) Nautilus EON 120d

- PCWorld: Tested the EON 120d: DebrisLock filter trapped all types of debris and coverage reached about 95% on the longest cycle, but emptying the filter was a huge pain, it missed corners, failed to start twice at first, and often flipped onto its back. [Source](https://pcworld.com/article/3084901/maytronics-dolphin-eon-120d-review.html)
- The Pool Nerd: Notes the EON line cleans water as shallow as about 8 in with better than basic mesh filtering, but still requires hooking, lifting, drying and charging; Clicker retrieval is mentioned for the 120d. [Source](https://www.thepoolnerd.com/best-cordless-robotic-pool-cleaners)

### Polaris FREEDOM

- The Pool Nerd: Named it the runner up cordless pick with longer runtime than many cordless units and wall climbing, but said suction and scrubbing fade as the battery drains and it does not match corded Dolphins. [Source](https://www.thepoolnerd.com/best-cordless-robotic-pool-cleaners)

## Questions buyers ask

### Which is better, the Dolphin (Maytronics) Nautilus EON 120d or the Polaris FREEDOM?

Pick the Dolphin (Maytronics) Nautilus EON 120d for fine dirt and sun ledges. Pick the Polaris FREEDOM for in-ground pools up to 50 ft without a cord.

### What is the difference between the Nautilus EON 120d and the FREEDOM?

Pool types: In-ground and above-ground; rectangular, round, free form, kidney on the Nautilus EON 120d, In-ground only on the FREEDOM. Cleans: Floor, walls, waterline, steps, sun ledges as shallow as 8 in, corners on the Nautilus EON 120d, Floor, walls and waterline; floor only and waterline only modes on the FREEDOM. Power: Cordless, lithium-ion (capacity not published) on the Nautilus EON 120d, Cordless lithium ion on the FREEDOM.

Full reviews: [Dolphin (Maytronics) Nautilus EON 120d](https://robotsforthat.com/robot/dolphin-nautilus-eon-120d/index.md), [Polaris FREEDOM](https://robotsforthat.com/robot/polaris-freedom/index.md)