LIYYOU M20m Pro vs M8 Slim 9cm Robot Vacuum
Side-by-side comparison of LIYYOU M20m Pro (LIYYOU) and M8 Slim 9cm Robot Vacuum (Nanjing Zhengfeng Foreign Trade Services Co., Ltd.) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Layer 1: Identity & Trust
Manufacturer Country
- LIYYOU M20m ProChina
- M8 Slim 9cm Robot VacuumChina
Year First Available
- LIYYOU M20m Pro—
- M8 Slim 9cm Robot Vacuum2026
Verified Deployments
- LIYYOU M20m Pro0 Deployments
- M8 Slim 9cm Robot Vacuum0 Deployments
Layer 2: Operational
Price
- LIYYOU M20m ProContact for quote
- M8 Slim 9cm Robot Vacuum$172 USD
Battery / Shift Runtime
- LIYYOU M20m Pro2 hrs
- M8 Slim 9cm Robot Vacuum2.5 hrs
Availability Status
- LIYYOU M20m ProACTIVE
- M8 Slim 9cm Robot VacuumACTIVE
Layer 3: Category Specific
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country | China | China |
| Year First Available (values differ) | — | 2026 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | Contact for quote | $172 USD |
| Battery / Shift Runtime (values differ) | 2 hrs | 2.5 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Payload Capacity, Reach, Max Speed, IP Rating, Autonomy Level
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | LIYYOU M20m Pro | M8 Slim 9cm Robot Vacuum |
|---|---|---|
| Investment | No price | $172 |
| Payback period | — | < 1 mo |
| Net savings (5 yr) | — | $249,828 |
| ROI (5 yr) | — | +145249% |
LIYYOU M20m Pro has no listed price, so payback can't be computed. Contact the manufacturer for a quote.
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes LIYYOU M20m Pro and M8 Slim 9cm Robot Vacuum?
LIYYOU M20m Pro is made by LIYYOU, based in CN. M8 Slim 9cm Robot Vacuum is made by Nanjing Zhengfeng Foreign Trade Services Co., Ltd., based in CN.
How do LIYYOU M20m Pro and M8 Slim 9cm Robot Vacuum compare on the Robo Index?
LIYYOU M20m Pro grades BB on the Robo Index. M8 Slim 9cm Robot Vacuum grades AA. The Robo Index is a credibility grade (AAA … C) that blends commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
Are LIYYOU M20m Pro and M8 Slim 9cm Robot Vacuum in the same category?
Both robots are classified as Home Cleaning on Robolist. Filters and ranking treat them as direct alternatives.
What should a buyer ask vendors when choosing between LIYYOU M20m Pro and M8 Slim 9cm Robot Vacuum?
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: The hidden specs vendors hope you'll miss.
Want to be notified when specs or pricing change for these robots? Drop your email.
Other comparisons
About this comparison
LIYYOU M20m Pro vs M8 Slim 9cm Robot Vacuum compares two robots in the home-cleaning category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robo Index is calculated.