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 21 in Self-Propelled Mower — residential: typical home lawns; 21-inch deck; battery (no fuel or engine maintenance)
- Kress 40 V lawn mower — residential: typical home lawns; 21-inch deck; battery (no fuel or engine maintenance)
What’s different? The 2 differences that matter most, from the published figures.
- 40V HP Brushless 21 in Self-Propelled Mower lists at $449; 40 V lawn mower lists at $500, a $51 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- 40V HP Brushless 21 in Self-Propelled Mower has a 2 bu (70.5 L) bagger; 40 V lawn mower has a 2.3 bu (81 L) bagger, a 0.3 bu difference.
what isn’t comparable
Not comparable
- Weight: not published for 40 V lawn mower.
- Warranty: not published for 40 V lawn mower.
- Fuel Type: not published for 40 V lawn mower.
- Deck Material: not published for 40V HP Brushless 21 in Self-Propelled Mower.
- Discharge: not published for 40 V lawn mower.
- Cut height range: not published for 40 V lawn 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 21 in Self-Propelled Mower Ryobi · Push / Walk-Behind |
40 V lawn mower Kress · Push / Walk-Behind |
|---|---|---|
| List price | $449 | $500 |
| Engine | ||
| Power Source | battery | battery |
| Fuel Type | Battery / Electric | — |
| Electrical | ||
| Voltage | 40 V | 40 V |
| Deck | ||
| Cutting Width | 21 in (533 mm) | 21 in (533 mm) |
| Min Cut Height | 1 in (25 mm) | — |
| Max Cut Height | 4 in (102 mm) | — |
| Deck Material | — | Plastic |
| Discharge | Mulching, Bagging, Side Discharge | — |
| Drive | ||
| Drive Type | Self-Propelled | — |
| Drive Tire Size | — | 10 in |
| Dimensions | ||
| Weight | 75 lbs (33.9 kg) | — |
| General | ||
| Warranty | 5 yr | — |
| Bagger Capacity | 2 bu (70.5 L) | 2.3 bu (81 L) |
40V HP Brushless 21 in Self-Propelled 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.