Senix 21 in 144cc 3-in-1 Push AA-M14
#3 in PushFull review
A complete 3-in-1 push mower for small lawns. It is priced close to name brand mowers, so check those first.
Amazon $259.96$259.96
The Senix 21 in 144cc 3-in-1 Push AA-M14 rates 3.9 among push lawn mowers; the Greenworks 40V 21 in Self-Propelled rates 3.3 among self-propelled ones. The Senix 21 in 144cc 3-in-1 Push AA-M14 costs $206.03 less ($259.96 vs $465.99).
Greenworks 40V 21 in Self-Propelled
#16 in Self-propelledFull review
A low cost self propelled mower for lawns up to about a third of an acre, best if you already own Greenworks 40V tools.
Amazon $465.99$465.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different drive classes (push and self-propelled), and each is scored against the reference points for its own class, so a rating says how well each does among its own drive peers. How we rank explains each factor.
| Factor weight | Senix 21 in 144cc 3-in-1 Push AA-M14 | Greenworks 40V 21 in Self-Propelled |
|---|---|---|
| Overall rating | 3.9/5 | 3.3/5 |
| Value 30% | 77 $12.38 per inch of deck ($259.96, 21 in deck) | 74 $22.19 per inch of deck ($465.99 with batteries and charger, 21 in deck) |
| Deck 20% | 100 21 in deck | 12 21 in deck |
| Power 15% | 30 144 cc engine | 14 200 Wh of battery included |
| Cutting modes 15% | 100 3 ways to cut: bag, mulch, side discharge | 100 3 ways to cut: bag, mulch, side discharge |
| Warranty 20% | 25 2-year warranty | 50 3-year warranty |
Specifications
| Senix 21 in 144cc 3-in-1 Push AA-M14 | Greenworks 40V 21 in Self-Propelled | |
|---|---|---|
| Cutting | ||
| Deck width | 21 in | 21 in |
| Deck | Steel | Steel |
| Cutting height | 1.2 to 3.8 in, 6 positions | 1.2 to 3.6 in, 7 positions |
| Bag | Yes | Yes |
| Bag capacity | 1.7 bushels | - |
| Mulch | Yes | Yes |
| Side discharge | Yes | Yes |
| Power | ||
| Power | Gas | Battery |
| Engine or battery | 144 cc | 40 V, 5 Ah of battery |
| Battery energy | - | 200 Wh |
| Battery included | - | Yes |
| Runtime | - | 40 min |
| Brushless motor | - | Yes |
| Build | ||
| Drive | Push | Rear-wheel drive |
| Folds upright | - | Yes |
| Weight | 54.2 lb | 61.7 lb |
| Warranty | 2 years | 3 years |
| Battery warranty | - | 3 years |
| Released | - | 2024-01-20 |