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 Kit — residential: typical home lawns; 20-inch deck; battery (no fuel or engine maintenance)
- Worx 40V 21'' brushless lawn mower — residential: typical home lawns; 20-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 Kit runs on Battery / Electric; 40V 21'' brushless lawn mower runs on Lithium-Ion. Fuel type sets what you buy and store; it is not a measure of power.
- 40V HP Brushless 20 in Self-Propelled Mower Kit has Mulching, Bagging, and Side Discharge discharge; 40V 21'' brushless lawn mower has Bag, mulch, rear-discharge discharge.
- 40V HP Brushless 20 in Self-Propelled Mower Kit cuts from 1 in (25 mm) to 4 in (102 mm); 40V 21'' brushless lawn 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.
- 40V HP Brushless 20 in Self-Propelled Mower Kit has a 1.7 bu (59.9 L) bagger; 40V 21'' brushless lawn mower has a 2 bu (70.5 L) bagger, a 0.3 bu difference.
- 40V HP Brushless 20 in Self-Propelled Mower Kit weighs 51 lbs (23 kg); 40V 21'' brushless lawn mower weighs 53 lbs (24.1 kg), a 2 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 Kit's weight means for a trailer ›
what isn’t comparable
Not comparable
- Battery Capacity: not published for 40V HP Brushless 20 in Self-Propelled Mower Kit.
- Deck Material: not published for 40V HP Brushless 20 in Self-Propelled Mower Kit.
- Price: 40V 21'' brushless lawn mower is dealer quote only.
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 Kit Ryobi · Push / Walk-Behind |
40V 21'' brushless lawn mower Worx · Push / Walk-Behind |
|---|---|---|
| List price | $459 | dealer quote |
| Engine | ||
| Power Source | battery | battery |
| Fuel Type | Battery / Electric | Lithium-Ion |
| Electrical | ||
| Voltage | 40 V | 40 V |
| Battery Capacity | — | 5 Ah |
| Deck | ||
| Cutting Width | 20 in (508 mm) | 20 in (508 mm) |
| Min Cut Height | 1 in (25 mm) | 1.5 in (38 mm) |
| Max Cut Height | 4 in (102 mm) | 4 in (102 mm) |
| Deck Material | — | Polymer |
| Discharge | Mulching, Bagging, and Side Discharge | Bag, mulch, rear-discharge |
| Cut Positions | — | 7 |
| Drive | ||
| Drive Type | Self-Propelled | — |
| Dimensions | ||
| Weight | 51 lbs (23 kg) | 53 lbs (24.1 kg) |
| General | ||
| Warranty | 5 yr | 5 yr |
| Bagger Capacity | 1.7 bu (59.9 L) | 2 bu (70.5 L) |
40V HP Brushless 20 in Self-Propelled Mower Kit: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ryobitools.com.
40V 21'' brushless lawn mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — worx.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.