Greenworks 80V 21 in Push Mower
#4 in PushFull review
A sturdy steel deck push mower with a long warranty, for flat lawns up to about half an acre and owners of Greenworks 80V tools.
Amazon $450.91$450.91
The Greenworks 80V 21 in Push Mower is the better lawn mower overall, rated 3.7 to 3.6. The Greenworks 80V 21 in Push Mower leads on warranty, cutting modes and power. The PowerSmart 21 in 144cc Push DV8621C wins on value. The PowerSmart 21 in 144cc Push DV8621C costs $180.92 less ($269.99 vs $450.91).
PowerSmart 21 in 144cc Push DV8621C
#8 in PushFull review
A low cost gas push mower for small lawns where you mulch or side discharge and never bag. Buy it for price, not long term support.
Amazon $269.99$269.99
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Greenworks 80V 21 in Push Mower for warranty (4-year warranty vs 2-year warranty), cutting modes (3 ways to cut: bag, mulch, side discharge vs 2 ways to cut: mulch, side discharge) and power (320 Wh of battery included vs 144 cc engine).
- Choose the PowerSmart 21 in 144cc Push DV8621C for value ($12.86 per inch of deck ($269.99, 21 in deck) vs $21.47 per inch of deck ($450.91 with batteries and charger, 21 in deck)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every push lawn mower; a clear win is highlighted. How we rank explains each one.
| Factor weight | Greenworks 80V 21 in Push Mower | PowerSmart 21 in 144cc Push DV8621C |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Value 30% | 17 $21.47 per inch of deck ($450.91 with batteries and charger, 21 in deck) | 73 $12.86 per inch of deck ($269.99, 21 in deck) |
| Deck 20% | 100 21 in deck | 100 21 in deck |
| Power 15% | 49 320 Wh of battery included | 30 144 cc engine |
| Cutting modes 15% | 100 3 ways to cut: bag, mulch, side discharge | 50 2 ways to cut: mulch, side discharge |
| Warranty 20% | 75 4-year warranty | 25 2-year warranty |
Specifications
| Greenworks 80V 21 in Push Mower | PowerSmart 21 in 144cc Push DV8621C | |
|---|---|---|
| Cutting | ||
| Deck width | 21 in | 21 in |
| Deck | Steel | Steel |
| Cutting height | 1.4 to 4 in, 7 positions | 1.5 to 3.9 in, 6 positions |
| Bag | Yes | No |
| Mulch | Yes | Yes |
| Side discharge | Yes | Yes |
| Power | ||
| Power | Battery | Gas |
| Engine or battery | 80 V, 4 Ah of battery | 144 cc |
| Battery energy | 320 Wh | - |
| Battery included | Yes | - |
| Runtime | 38 min | - |
| Brushless motor | Yes | - |
| Build | ||
| Drive | Push | Push |
| Folds upright | Yes | Yes |
| Weight | 62.8 lb | 59.4 lb |
| Warranty | 4 years | 2 years |
| Battery warranty | 4 years | - |
| Released | 2024-01-16 | - |