Fey HKS-881
No lab has tested it yet, so it is not in our ranking.
- 2.9 inRobot heightlower than 6 of 8
Is the Fey HKS-881 right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, with the same kind of station where we have them.
Green is the best of these 3, also when they share the lead.
| This model Fey HKS-881 Best on 2 facts | Higher score, 71% pricier Tikom G8000 Max Best on 2 facts | Higher score, 111% pricier Roborock Q7 M5 Best on 1 fact | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | $75Amazon.com best | $129Amazon.com | $159Roborock (brand store) |
| Score | not in our ranking | best | |
| Rank | – | rank 1 of 8 without a station | rank 2 of 8 without a station |
| Customer rating | ★ 3.4 · 15 reviews | ★ 4.4 · 4,877 reviews best | ★ 4.0 · 5,610 reviews |
| Mopping | |||
| Mop type | no mop | flat or vibrating pad | flat or vibrating pad |
| Mop lift on carpet higher is better | – | – | no |
| Automatic mop detach | – | – | no |
| Washes the mop | – | – | no |
| Hot-air drying | – | – | no |
| Station | |||
| Station same on all | charging dock only | charging dock only | charging dock only |
| Dust bag lasts longer is better | – | – | up to 30 days |
| Plumbing hookup | – | – | no |
| Brush and obstacles | |||
| Anti-tangle brush | yes | – | yes |
| Obstacle avoidance | – | none | – |
| Climbs thresholds up to higher is better | 0.6 in (15 mm) | 0.7 in (18 mm) | 0.8 in (20 mm) best |
| Climbing system for high thresholds | – | – | no |
| Size, noise and age | |||
| Robot height lower is better | 2.9 in (7.5 cm) best | 3 in (7.6 cm) | 3.9 in (9.9 cm) |
| Noise not judged | – | – | 65 dB |
| On the market since | – | March 2025 | April 2025 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Prices per store
On October 3, 2026 the lowest price for the Fey HKS-881 is $75 at Amazon.com, shipping to the United States included.
All prices include shipping to the United States. Sales tax is added at checkout. We may earn a commission when you buy through these links. It never changes our ranking.
| Store | Color | Price | Delivery time and returns | Reviews | Checked | Link to the store |
|---|---|---|---|---|---|---|
 Amazon.com blacklowest price sold by a third-party seller | black | $75lowest price since Sep 27: $69 | about 1–5 dayslowest pricereturns through the seller | ★ 3.4 (15) | 3 hours ago | Visit store ↗ |
Price history
Fey HKS-881 specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Suction and brushes 2 facts
- Suction power
Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor.
- 2,900 Pa
- Anti-tangle brush
A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets.
- yes
Mopping 1 fact
- Mop type
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- no mop
Navigation and obstacles 1 fact
- Climbs thresholds up to
The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.
- 0.6 in (15 mm)
Robot 2 facts
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 2.9 in (7.5 cm)
- Dust bin in the robot
How much dust the robot holds before you empty it. It matters less with a self-emptying dock, which empties the bin after every run.
- 600 ml
Battery 2 facts
- Battery capacity
The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.
- 2,600 mAh
- Runtime per charge
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.
- 120 min
Sources: amazon.com · vacuumwars.com
