Quick verdict
The Kobalt has more voltage and more energy aboard and belongs to a real yard range; the Worx is lighter and runs on the Power Share packs a Worx owner already has. For a quarter acre on Worx packs, the WG753. For a half acre, or a fresh start, the Kobalt.
Kobalt 80V 21-Inch Self-Propelled Mower
The Kobalt 80V 21-inch self-propelled mower is a brushless steel-deck mower with rear-wheel drive and a 6 Ah 80V pack in the kit, sold at Lowe's. It runs on the Kobalt 80V packs that also power Kobalt blowers, trimmers and chainsaws, and it covers a half acre on one pack.
Worx Nitro WG753 40V mower versus Kobalt 80V 21-inch self-propelled mower: voltage, battery capacity, drive, platform, availability and lawn size compared from published specifications.
The picks at a glance
| Tool | Best for | Score /100 | |
|---|---|---|---|
| Kobalt 80V 21-Inch Self-Propelled Mower | Best Value 80V Self-Propelled | 8.4 | Check price |
| Worx Nitro WG753 40V 21-Inch Self-Propelled Mower | Best for a Worx Power Share Shed | 8.2 | Check price |
The picks, reviewed
Kobalt 80V 21-Inch Self-Propelled Mower
The Kobalt 80V 21-inch self-propelled mower is a brushless steel-deck mower with rear-wheel drive and a 6 Ah 80V pack in the kit, sold at Lowe's. It runs on the Kobalt 80V packs that also power Kobalt blowers, trimmers and chainsaws, and it covers a half acre on one pack.
Reasons to buy
- 6 Ah 80V pack covers a half acre
- Strong brushless motor
- Kobalt 80V runs blowers and trimmers
- Good value at Lowe's
Reasons to avoid
- Lowe's only
- Steel deck
- Kobalt 80V is a smaller platform
Worx Nitro WG753 40V 21-Inch Self-Propelled Mower
The WG753 is the Worx Nitro 40V 21-inch self-propelled mower that runs two 20V Power Share packs, with a brushless motor, a steel deck, Intellicut torque control and two 4 Ah packs in the kit. It shares packs with every Worx 20V tool.
Reasons to buy
- Runs on Worx 20V Power Share packs
- Intellicut torque control
- Two 4 Ah packs in the kit
- Light
Reasons to avoid
- 8 Ah total aboard is modest
- Needs two packs
- Homeowner build
Where these two differ
Both are 21-inch brushless self-propelled steel-deck mowers aimed at value buyers. The Worx Nitro WG753 runs two 20V Power Share packs for 40V and shares them with Worx drills and trimmers. The Kobalt 80V runs one 6 Ah 80V pack, sold at Lowe’s, and shares it with Kobalt blowers and chainsaws. The Kobalt has more energy aboard and more voltage; the Worx is lighter and cheaper to add to a Worx household.
This comparison is based on the published specifications and manuals for both mowers and on recurring owner feedback. We have not run either mower ourselves.
| Specification | WG753 | Kobalt 80V 21 |
|---|---|---|
| Deck | 21 inch steel | 21 inch steel |
| Battery in kit | Two 4 Ah 20V | One 6 Ah 80V |
| Voltage | 40V | 80V |
| Drive | Rear wheel | Rear wheel |
| Platform | Worx Power Share | Kobalt 80V |
| Where sold | Widely | Lowe’s |
Batteries and runtime
Energy aboard is the number that matters. The Kobalt 6 Ah pack at 80V holds roughly half again the energy of two 4 Ah packs at 20V, and owners report a half acre on a charge. The Worx covers a quarter acre comfortably and a third acre in dry grass.
Cut and drive
Both are single-blade steel decks with variable-speed rear-wheel drive. The Kobalt motor holds speed in thick grass; the Worx Intellicut raises torque on demand and slows a little in heavy growth. Both mulch, bag and side discharge.
Platform
Worx Power Share packs run a large range of light tools: drills, trimmers, blowers, chainsaws and more. Kobalt 80V runs a smaller range of heavier yard tools. A Worx household gains a mower for the cost of the bare tool; a Kobalt household gains the same.
Yard jobs this decides
A quarter acre with Worx packs in the shed: the WG753. A half acre, thick grass or a fresh start: the Kobalt. Slopes favor the lighter Worx by a little.
Warranty and support
On the Worx Nitro, Worx covers it with a two-year warranty that registration extends to three. On the Kobalt 80V, Kobalt covers 80V tools with a five-year limited warranty and packs with three. Both makers run service networks in the US and both honor the warranty only with proof of purchase, so keep the receipt with the manual. Registration takes a few minutes online and is worth doing the day the tool arrives.
Common owner complaints
Worx owners mention runtime in thick grass and plastic trim. Kobalt owners mention the Lowe’s-only supply and a smaller accessory range. Both are reliable for homeowner use.
Which one should you buy
Buy the WG753 for a small lawn on Worx packs. Buy the Kobalt 80V for a half acre and a yard range at Lowe’s.
Our verdict
The Kobalt 80V 21-inch edges this comparison on energy and power. The Worx Nitro WG753 is the right buy for a Worx household with a small lawn.
How we research
This comparison is built from the published specifications, manuals and warranty terms of both products and from recurring owner feedback. We have not run either product ourselves; where the makers do not publish a figure we say so rather than guess.
What to look for
Platform
Worx Power Share packs favor the WG753; otherwise the Kobalt.
Energy aboard
8 Ah at 40V against 6 Ah at 80V favors the Kobalt.
Weight
The Worx is lighter.
Availability
The Kobalt is Lowe's only.
Our verdict
The Kobalt has more voltage and more energy aboard and belongs to a real yard range; the Worx is lighter and runs on the Power Share packs a Worx owner already has. For a quarter acre on Worx packs, the WG753. For a half acre, or a fresh start, the Kobalt.
FAQs
The Kobalt; 6 Ah at 80V is more energy than 8 Ah at 40V.
Yes, two 20V Power Share packs.
It is a Lowe's exclusive; the link on this page searches Amazon for comparable Kobalt listings.
The Worx.
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