Which is better for mulching leaves and grass?

The DeWalt has a dual-blade system and a mulch plug in the kit, and its owners rate it highly. Greenworks owners often report clumps and missed grass when mulching.

Which has longer runtime?

The DeWalt, at up to 80 minutes using both included 10.0 Ah batteries in succession. The Greenworks runs up to 45 minutes on its single 80V 4.0 Ah battery.

Which is easier to push and store?

The Greenworks is about 32 lbs lighter, so it is easier to maneuver and load. Both have folding handles, but the DeWalt's 92 lbs is harder to lift.

Can the Greenworks cut shorter than the DeWalt?

Yes. The Greenworks goes down to 0.4 cm (about 0.16 in). The DeWalt's lowest setting is 1-1/2 in.

Is the DeWalt worth the extra weight and cost?

If you have a large yard and want long runtime plus a strong owner rating, yes. If you need a low cut or tow attachments, the Greenworks fits better.

Do both bag, mulch and side discharge?

Yes. Both include a grass bag, mulch capability and a side discharge chute.

Greenworks 80V 21 inch vs DeWalt 2X20V MAX DCMWSP256U2 21 in. 20 V Battery Self-Propelled Lawn Mower Kit

Both are 21-inch self-propelled battery mowers with steel decks and mulching, bagging and side discharge. The Greenworks 80V is lighter at about 60 lbs and cuts as low as 0.4 cm, but owner reports of mulching clumps and early failures are common. The DeWalt runs two 20V 10.0 Ah batteries for up to 80 minutes and carries a 4.9 out of 5 rating from 88 ratings, but it weighs 92 lbs and its deck only adjusts from 1-1/2 to 4 inches. Buy the DeWalt for reliability and runtime; buy the Greenworks if weight and a very low cut matter more.

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