# SwitchBot K11+ vs SwitchBot S20

As of Oct 31, 2026, the SwitchBot K11+ costs $400 and the SwitchBot S20 costs $800, so the SwitchBot K11+ is $400 cheaper. The SwitchBot S20 has a published review score and ranks #22 in our robot vacuums ranking; the SwitchBot K11+ is not scored yet. Pick the SwitchBot K11+ for small apartments with tight gaps under furniture. Pick the SwitchBot S20 for hard floor homes that want roller mopping on a budget.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/switchbot-k11-plus-vs-switchbot-s20/

## Side by side

| | SwitchBot K11+ | SwitchBot S20 |
|---|---|---|
| Price | $400 | $800 |
| 3 year cost | $595 | $1,100 |
| Our score | Not scored yet | 7.0/10 |
| Rank in Floors | #48 | #22 |
| Status | on sale | on sale |
| Warranty | 1 year | 1 year (SwitchBot store) |
| Suction | 6,000 Pa with Quiet, Standard, Strong and Max modes (SwitchBot) | 10,000 Pa with four levels (SwitchBot, Expert Reviews) |
| Navigation | LDS LiDAR with SLAM mapping (SwitchBot); TechRadar found it fast and accurate, Tom's Guide needed about four mapping attempts | dToF LiDAR plus AI camera (SwitchBot); Expert Reviews found mapping fast, while TechRadar saw some erratic routes and frequent failed docking |
| Obstacle avoidance | Infrared and PSD sensors, no camera; TechRadar and Expert Reviews saw it run over cables and socks | AI camera, front infrared and side PSD sensors (SwitchBot); TechRadar saw it avoid a cable and a shoe but push a tissue box across the room |
| Mopping | No, no water tank; a disposable wet wipe attachment only, which reviewers found weak (TechRadar) | RevoRoll roller mop with 1 kg of pressure, 300 scrubs per minute and a 4 step rinse while mopping (SwitchBot); no mop only mode (Expert Reviews, HomeKit News) |
| Self empty | Yes, 4 L antibacterial bag, up to 90 days (SwitchBot) | Yes, the station stores dust for up to 90 days (SwitchBot); TechRadar lists a 4 L dock bin |
| Dock features | Auto empty and charging only; dock 24 x 18 x 25 cm (TechRadar) | Auto empty, auto water refill, mop washing and 50 C hot air drying (SwitchBot); 2.5 L clean and 2.5 L dirty tanks (TechRadar, Expert Reviews), while SwitchBot's launch notice listed 2.7 L clean; an Auto-Fill and Drain version connects to home plumbing |
| Runtime | Not published; 3,200 mAh battery with under 5 h charging (SwitchBot); Tom's Guide cites over two hours in quiet mode | Not stated by SwitchBot; 4,000 mAh battery and under 4 hours to charge (SwitchBot) |
| Dustbin | Robot bin size not published; 4 L dock bag (SwitchBot) | n/a |
| Height | 98.5 mm, 248 mm wide (SwitchBot) | 115 mm (4.5 in) tall, 365 mm (14.4 in) wide (SwitchBot, TechRadar) |
| Pet hair | Expert Reviews collected 3.1 g of pet hair per surface, at the low end of its tests; Tom's Guide pet hair 70% hardwood, 65% carpet | Expert Reviews measured 5 of 5 g pet hair on hard floor and 3.8 of 5 g on carpet |
| App | SwitchBot app plus Matter for Apple Home, Alexa and Google Home; TechRadar noted quirks such as an 8 character room name limit | SwitchBot app, Alexa, Google Assistant and Matter 1.4; HomeKit News found rooms show in Apple Home, but the SwitchBot app is still needed for setup and maps |
| Threshold | Climbs up to 1.7 cm (SwitchBot) | Crosses obstacles up to 20 mm (SwitchBot) |
| Noise | n/a | Expert Reviews measured 65 dBA at 1 m; TechRadar called it louder than average in every mode with a very loud auto empty |
| Best for | small apartments with tight gaps under furniture | hard floor homes that want roller mopping on a budget |
| Skip if | you need real mopping or have a large home | you want quiet cleaning or have low furniture |

## What reviewers found

### SwitchBot K11+

- TechRadar: Charming, capable vacuum for cramped homes with fast, accurate navigation and a large dock bag; the wipe mop is not worth using, auto empty is noisy and it hit a shoe and sucked up a cable. TechRadar gave a Performance 3.5/5 subscore but no overall rating. [Source](https://www.techradar.com/home/robot-vacuums/switchbot-k11-robot-vacuum-review)
- Tom's Guide: Picked up all kitty litter but struggled with Cheerios; mapping needed about four attempts and the reviewer preferred the cheaper K10+ Pro unless battery life or noise matter most. [Source](https://www.tomsguide.com/home/smart-home/switchbot-k11-robot-vacuum-review)
- Expert Reviews: Near perfect rice pickup on carpet and laminate, but weaker on flour and pet hair; it ran over socks and cables and did not detect a fake dog mess. [Source](https://www.expertreviews.co.uk/home-garden/vacuums-cleaning/switchbot-k11-robot-vacuum-review)

### SwitchBot S20

- TechRadar: Effective roller mop and strong obstacle avoidance, but louder than average in every mode, regular docking failures and some erratic navigation. Subscores: Value 3.5/5, Design 4/5, Performance 3/5, App 3.5/5. [Source](https://www.techradar.com/home/robot-vacuums/switchbot-s20-review)
- Expert Reviews: Picked up 50 of 50 g rice and 5 of 5 g pet hair on hard floor, 29.4 of 50 g flour on carpet, and removed dried mud in two passes and ketchup in three. Measured 65 dBA at 1 m. [Source](https://www.expertreviews.co.uk/home-garden/vacuums-cleaning/switchbot-s20-robot-vacuum-review)
- HomeKit News (8/10): Solid obstacle avoidance that was sometimes overcautious; Matter 1.4 rooms work in Apple Home, but there is no mop only option and cleaning fluid must be added by hand. [Source](https://homekitnews.com/2025/09/28/switchbot-floor-cleaning-robot-s20-w-matter-review/)

## Questions buyers ask

### Which is better, the SwitchBot K11+ or the SwitchBot S20?

The SwitchBot S20 has a published review score and ranks #22 in our robot vacuums ranking; the SwitchBot K11+ is not scored yet. Pick the SwitchBot K11+ for small apartments with tight gaps under furniture. Pick the SwitchBot S20 for hard floor homes that want roller mopping on a budget.

### Which is cheaper?

The SwitchBot K11+ at $400, versus $800 for the SwitchBot S20, checked Oct 31, 2026. Over 3 years with running costs: $595 vs $1,100.

### What is the difference between the K11+ and the S20?

Suction: 6,000 Pa with Quiet, Standard, Strong and Max modes (SwitchBot) on the K11+, 10,000 Pa with four levels (SwitchBot, Expert Reviews) on the S20. Navigation: LDS LiDAR with SLAM mapping (SwitchBot); TechRadar found it fast and accurate, Tom's… on the K11+, dToF LiDAR plus AI camera (SwitchBot); Expert Reviews found mapping fast, while… on the S20. Obstacle avoidance: Infrared and PSD sensors, no camera; TechRadar and Expert Reviews saw it run over cables… on the K11+, AI camera, front infrared and side PSD sensors (SwitchBot); TechRadar saw it avoid a… on the S20.

Full reviews: [SwitchBot K11+](https://robotsforthat.com/robot/switchbot-k11-plus/index.md), [SwitchBot S20](https://robotsforthat.com/robot/switchbot-s20/index.md)