# Ecovacs Ultramarine P1 review

Budget cordless pool robot with a 3 micron inner filter

- Our score: 8.2 out of 10
- Price: $500 (checked Nov 12, 2026)
- Status: on sale
- Best for: budget pools with sand or pollen
- Skip if: your pool fills with leaves
- HTML version: https://robotsforthat.com/robot/ecovacs-ultramarine-p1/

## Verdict

A low cost cordless robot that The Hook Up named its budget pick for sand, silt and pollen, thanks to the 3 micron inner filter and good waterline reach. Its bin is small, it skipped steps for one reviewer, and it ran about 2 hours in testing rather than the claimed 3. Pick it for a lightly leafy pool on a budget; skip it if your pool collects lots of leaves.

## Pros

- 3 micron inner filter for fine silt
- Waterline reach over 3 in in The Hook Up test
- Flexible timers and modes in the app
- Replacement baskets sold on the US store

## Cons

- Very small debris bin
- Measured 2 h 9 min against a 3 h claim
- Slow charging, 3 h 40 min in EFTM testing
- Weak on steps and awkward areas

## Specs

- pool types: Fiberglass to pebble surfaces and various shapes (Ecovacs)
- cleans: Floor and walls with four roller brushes, plus platforms and slopes (Ecovacs); The Hook Up measured 99% floor, 81% walls and 38% stairs and bench, with waterline reach over 3 in; Digital Reviews found it does not clean steps
- power: Cordless, 4,600 mAh lithium ion battery, 4,800 GPH suction (Ecovacs)
- runtime: Up to 3 h in Eco mode (Ecovacs); The Hook Up measured 2 h 9 min
- charge time: Not published by Ecovacs; EFTM measured 3 h 40 min from 5% to full
- filter: Dual layer, 180 micron outer and 3 micron inner (Ecovacs); The Hook Up found the bin very small
- max pool size: Floors up to 180 m2, about 1,937 sq ft (Ecovacs)
- app: Ecovacs app with one time or recurring schedules, 3 modes and 3 power levels; Bluetooth drops underwater (Ecovacs, EFTM)
- navigation: SmartNavi with IMU sensor, up to 99% floor coverage claimed, crosses 5.5 cm obstacles (Ecovacs)
- weight: Around 10 kg, about 22 lb (Digital Reviews)
- warranty: Not stated on the Ecovacs US product page

## Safety

- recalls: No recall found as of 2026-11-12 (CPSC saferproducts.gov recall search)
- fcc: Not checked
- company status: Active

## Questions buyers ask

### Does it clean the waterline?

Ecovacs lists floors and walls. The Hook Up still saw it reach the coping, over 3 in up, and Digital Reviews saw it reach the waterline on some wall passes.

### How long does it run?

Ecovacs claims up to 3 h in Eco mode. The Hook Up measured 2 h 9 min.

### Will it catch fine sand?

It has a 3 micron inner filter, and The Hook Up rated its silt capture strong.

## Sources

1. [Ecovacs US: Ultramarine P1 store page](https://www.ecovacs.com/us/shop/ultramarine-robotic-pool-cleaner/ultramarine-p1)
2. [Ecovacs US: Ultramarine P1 product page](https://www.ecovacs.com/us/ultramarine-robotic-pool-cleaner/ultramarine-p1)
3. [The Hook Up: 2026 Ultimate Pool Vacuum Review](https://www.thesmarthomehookup.com/2026-ultimate-pool-vacuum-review/)
4. [EFTM: Ecovacs Ultramarine P1 review](https://eftm.com/2026/07/review-the-ecovacs-ultramarine-p1-robot-pool-cleaner-making-waves-in-pool-cleaning-technology-278395)
5. [Digital Reviews Network: Ecovacs Ultramarine P1 review](https://www.digitalreviews.net/reviews/lifestyle/ecovacs-ultramarine-p1-review/)