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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 Push Mower — 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.
  1. 40V HP Brushless 20 in Push Mower 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.
  2. 40V HP Brushless 20 in Push Mower has Mulching, Bagging, and Side Discharge discharge; 40V 21'' brushless lawn mower has Bag, mulch, rear-discharge discharge.
  3. 40V HP Brushless 20 in Push Mower weighs 46 lbs (21.1 kg); 40V 21'' brushless lawn mower weighs 53 lbs (24.1 kg), a 7 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 Push Mower's weight means for a trailer ›
  4. 40V HP Brushless 20 in Push Mower 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.
  5. 40V HP Brushless 20 in Push Mower 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.
what isn’t comparable

Not comparable

  • Battery Capacity: not published for 40V HP Brushless 20 in Push Mower.
  • Deck Material: not published for 40V HP Brushless 20 in Push Mower.
  • 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.

Add another (2 more fit): every push / walk-behind mower · more Ryobi · more Worx
Side-by-side specifications: Ryobi 40V HP Brushless 20 in Push Mower vs Worx 40V 21'' brushless lawn mower
Spec 40V HP Brushless 20 in Push Mower
Ryobi · Push / Walk-Behind
40V 21'' brushless lawn mower
Worx · Push / Walk-Behind
List price $279dealer 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 Push —
Dimensions
Weight 46 lbs (21.1 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 Push Mower: Specs verified against the manufacturer spec sheet on Jun 8, 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.

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