Narwal Freo 20
Narwal’s cheaper FlowWash robot, with top-tier carpet cleaning and enough range for very large homes. A strong pick for big homes with hard floors to mop.
Amazon $1,099.99$1,099.99
The Narwal Freo 20 is the better robot vacuum overall, rated 4.2 to 3.9. The Narwal Freo 20 leads on cleaning, mopping and navigation. The Shark PowerDetect ThermaCharged costs $10.04 less ($1,089.95 vs $1,099.99).
Shark PowerDetect ThermaCharged
A good fit for pet owners in smaller homes who want a heated mop wash and dry; its short measured range makes it a poor choice for big floor plans.
Amazon $1,089.95$1,089.95
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Narwal Freo 20 for cleaning (measured 93% of sand from carpet, 87.5% of pet hair, no hair tangled vs measured 89% of sand from carpet, 95% of pet hair, some hair tangled (0.4)), mopping (Roller, extends to edges vs Vibrating pad, leaves its mop at the dock for carpet, extends to edges) and navigation (LiDAR + camera vs LiDAR + 3D light).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Narwal Freo 20 | Shark PowerDetect ThermaCharged |
|---|---|---|
| Overall rating | 4.2/5 | 3.9/5 |
| Cleaning 30% | 89 measured 93% of sand from carpet, 87.5% of pet hair, no hair tangled | 73 measured 89% of sand from carpet, 95% of pet hair, some hair tangled (0.4) |
| Value 25% | 30 $1,100 | 31 $1,090 |
| Dock 20% | 94 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying |
| Navigation 15% | 100 LiDAR + camera | 85 LiDAR + 3D light |
| Mopping 10% | 85 Roller, extends to edges | 62 Vibrating pad, leaves its mop at the dock for carpet, extends to edges |
Independent tests
Narwal Freo 20
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 93% | 87.5% | 0 | 2,489 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Shark PowerDetect ThermaCharged
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 95% | 0.4 | 649 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Narwal Freo 20 | Shark PowerDetect ThermaCharged | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 31,000 Pa | - |
| Main brush | Floating roller brush (DualFlow tangle-free system) | - |
| Dustbin | - | 380 mL |
| Extending side brush | No | - |
| Mopping | ||
| Mop | Roller, extends to edges | Vibrating pad, leaves its mop at the dock for carpet, extends to edges |
| Leaves mop at dock | No | Yes |
| Extending mop | Yes | Yes |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | 2.4 L | - |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | No | - |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + 3D light |
| Obstacle avoidance | Dual RGB cameras with AI, recognises 300+ objects; structured-light edge sensors | 3D sensor with AI object detection |
| Climbs thresholds | 40 mm | 18 mm |
| Matter | - | No |
| Voice assistants | - | Alexa, Google Assistant |
| Build | ||
| Height | 3.7 in (95 mm) | - |
| Battery | 5,900 mAh | - |
| Run time | - | Up to 3 h |
| Warranty | 1 year | 2 years |
| Released | 2026-08 | 2025-10 |