Narwal Robotics (China) Narwal Flow / Flow 2 (1)

$1,045 – $1,600Narwal's US store lists the Flow 2 at $1,044.99 to $1,199.99 (sale prices, $1,499.99 list) and the original Flow at $1,499.99, or $1,599.99 with the auto refill and drainage kit. Vacuum Wars has seen the Flow at $1,279.99.

AvailableHome Assistant / Matter31,000 Pa (Flow 2)Lidar + dual camerasTrack mop, hot-water dockLocal Home Assistant

≤ 1 weekShipping: 2–5 days. Sold by Narwal's US store and on Amazon, with both models listed in stock. Narwal ↗

Remote control: Through Home Assistant running on a computer, using the community local integration, otherwise app only.

Official page (Flow 2) ↗Official page (Flow) ↗Vacuum Wars Flow 2 review ↗Consumer Reports on the Flow ↗NarwalIntegration (Home Assistant) ↗

Overview

The Flow is Narwal's flagship line and swaps the usual spinning mop pads for the FlowWash track mop, a flat roller belt that is rinsed with clean water and scraped while it mops, so dirty water is not dragged around the floor. The robot is only 95 mm tall despite having lidar, and climbs thresholds up to 40 mm. The Flow 2 (2026) raises suction from 22,000 to 31,000 Pa, washes with hotter water and adds a larger battery, and Narwal now sells it for less than the original Flow. The Flow is the main target of the community NarwalIntegration, which controls it fully locally from Home Assistant. Both models are sold new by Narwal and on Amazon, and the cheaper Freo 20 uses the same track mop.

Specifications

Category	Cleaning robots · Robot vacuums with all-in-one docks
Released	2025
Country	China
Availability	Available
Programmability	Community / unofficial SDK
Built-in autonomy	Task-level · Carries out multi-step jobs on its own, such as inspections, deliveries or chores
LLM support	None · Built-in "Hey Nawa" voice commands and Alexa/Google/Siri, no general LLM chat.
Best for	Ages 12+ (estimated)
Vision sensors	Lidar, Camera, Depth camera
Actuators	DC / gear motors
Audio	Speaker, Microphone
Compute type	Proprietary / undisclosed
Remote control	Home Assistant / Matter
Size	351 × 364 × 95 mm (robot, both models), 4.6 kg (Flow), Flow 2 basic dock 450 × 360 × 530 mm
Suction	22,000 Pa (Flow), 31,000 Pa (Flow 2)
Cleaning	Vacuum with a tangle-resistant floating roller brush and auto-extending side brush, plus the FlowWash track mop, a roller-style belt mop that is rinsed and scraped continuously while it cleans, presses down at up to 12 N, extends toward edges and lifts 12 mm on carpet
Dock	Empties the bin into a 2.5 L bag, washes the track mop with hot water (up to 212 °F on the Flow 2), dries it with warm air, doses detergent and self-cleans, optional auto refill and drainage kit
Navigation	dToF lidar with room mapping, Flow 2 adds 3D mapping views
Obstacle avoidance	Dual RGB cameras with on-board AI recognition (200+ object types on the Flow, open-ended recognition on the Flow 2) plus structured light
Runtime	Up to 190 min (Flow, 5,000 mAh), Flow 2 has a 7,000 mAh battery
Smart home	Narwal app, Alexa, Google Assistant, Siri Shortcuts, built-in "Hey Nawa" voice assistant, community local Home Assistant integration. Matter has been announced for the Flow range but owners report it does not yet work (unconfirmed)
Sensors	Lidar, dual RGB cameras, structured light, cliff and carpet sensors, bumper
Compute	Not published (dedicated AI chip for vision)
API / hacking	No official API. The community NarwalIntegration for Home Assistant (HACS) talks to the robot over a local WebSocket on port 9002 with no cloud account, and both the Flow and Flow 2 are listed as working (start, stop, fan speed, room cleaning, maps, dock sensors)