Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- Ryobi 40V HP Brushless 20 in Self-Propelled Mower — residential: typical home lawns; 20-inch deck; battery (no fuel or engine maintenance)
- Ryobi 18V ONE+ 13 in Push Mower — residential: typical home lawns; 13-inch deck; battery (no fuel or engine maintenance)
What’s different? The 5 differences that matter most, from the published figures.
- 40V HP Brushless 20 in Self-Propelled Mower lists at $379; 18V ONE+ 13 in Push Mower lists at $199, a $180 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- 40V HP Brushless 20 in Self-Propelled Mower has a 20 in (508 mm) deck; 18V ONE+ 13 in Push Mower has a 13 in (330 mm) deck, a 7 in difference. Deck width sets how much grass each pass covers. Mowing time also depends on ground speed, turns and obstacles, so a wider deck alone does not fix the job's length. Time both decks on your own lawn ›
- 40V HP Brushless 20 in Self-Propelled Mower weighs 51 lbs (23 kg); 18V ONE+ 13 in Push Mower weighs 29 lbs (12.9 kg), a 22 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What 40V HP Brushless 20 in Self-Propelled Mower's weight means for a trailer ›
- 40V HP Brushless 20 in Self-Propelled Mower carries a 5-year warranty; 18V ONE+ 13 in Push Mower carries a 3-year warranty, a 2 years difference. Warranty length is the maker's published term. Conditions and commercial-use limits differ between makers.
- 40V HP Brushless 20 in Self-Propelled Mower cuts from 1 in (25 mm) to 4 in (102 mm); 18V ONE+ 13 in Push Mower cuts from 1.5 in (38 mm) to 4 in (102 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
what isn’t comparable
Not comparable
- Voltage: not published for 18V ONE+ 13 in Push Mower.
- Bagger Capacity: not published for 18V ONE+ 13 in Push Mower.
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | 40V HP Brushless 20 in Self-Propelled Mower Ryobi · Push / Walk-Behind |
18V ONE+ 13 in Push Mower Ryobi · Push / Walk-Behind |
|---|---|---|
| List price | $379 | $199 |
| Engine | ||
| Power Source | battery | battery |
| Fuel Type | Battery / Electric | Battery / Electric |
| Electrical | ||
| Voltage | 40 V | — |
| Deck | ||
| Cutting Width | 20 in (508 mm) | 13 in (330 mm) |
| Min Cut Height | 1 in (25 mm) | 1.5 in (38 mm) |
| Max Cut Height | 4 in (102 mm) | 4 in (102 mm) |
| Discharge | Mulching, Bagging, and Side Discharge | Mulching & Bagging |
| Drive | ||
| Drive Type | Self-Propelled | Push |
| Dimensions | ||
| Weight | 51 lbs (23 kg) | 29 lbs (12.9 kg) |
| General | ||
| Warranty | 5 yr | 3 yr |
| Bagger Capacity | 1.7 bu (59.9 L) | — |
40V HP Brushless 20 in Self-Propelled Mower: Specs verified against the manufacturer spec sheet on Jun 8, 2026 — ryobitools.com.
18V ONE+ 13 in Push Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ryobitools.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.