Quick verdict
Nine inches of deck is the whole story. The Ryobi covers a flat acre in a session that a 21-inch mower stretches into two; the EGO fits through gates, around beds and up slopes the Ryobi cannot, and cuts finer. Under a half acre, the EGO. A flat acre with no obstacles, the Ryobi.
EGO Power+ LM2156SP Select Cut XP 21-Inch Self-Propelled Mower
The LM2156SP is the EGO Power+ 21-inch Select Cut XP self-propelled mower with a steel deck, stacked Select Cut blades, Touch Drive and a 10 Ah 56V pack in the kit. It cuts and mulches as well as any battery mower and fits a normal suburban lawn.
EGO LM2156SP 21-inch Select Cut mower versus Ryobi 80V HP 30-inch Cross Cut mower: deck width, cut quality, battery platform, maneuverability and lawn size compared from published specifications.
The picks at a glance
| Tool | Best for | Score /100 | |
|---|---|---|---|
| EGO Power+ LM2156SP Select Cut XP 21-Inch Self-Propelled Mower | Best for Lawns Under a Half Acre | 9.0 | Check price |
| Ryobi 80V HP 30-Inch Cross Cut Self-Propelled Mower | Best for Big Flat Lawns | 8.6 | Check price |
The picks, reviewed
EGO Power+ LM2156SP Select Cut XP 21-Inch Self-Propelled Mower
The LM2156SP is the EGO Power+ 21-inch Select Cut XP self-propelled mower with a steel deck, stacked Select Cut blades, Touch Drive and a 10 Ah 56V pack in the kit. It cuts and mulches as well as any battery mower and fits a normal suburban lawn.
Reasons to buy
- Select Cut mulching and bagging
- Fits gates, slopes and beds
- Up to 90 minutes on 10 Ah
- EGO 56V runs a full yard range
Reasons to avoid
- 21 inches takes longer on a big lawn
- Steel deck
- One battery port
Ryobi 80V HP 30-Inch Cross Cut Self-Propelled Mower
The Ryobi 80V HP 30-inch Cross Cut is a self-propelled walk mower with two blades under a 30-inch deck, Ryobi 80V batteries in a dual port, a steel deck and a claim of up to an acre on the kit packs. It is for big flat lawns where a 21-inch mower takes too long.
Reasons to buy
- 30-inch deck cuts an acre in a session
- Two blades under one deck
- Dual battery ports
- Big-box availability
Reasons to avoid
- Heavy and wide for gates and beds
- Ryobi 80V is a small platform
- Not sold on Amazon; buy at Home Depot
Where these two differ
The EGO LM2156SP is a 21-inch self-propelled mower with the best mulching system in the category. The Ryobi 80V HP 30-inch Cross Cut is a walk mower with a 30-inch twin-blade deck and dual 80V battery ports built to cut an acre in one session. The EGO is the better mower; the Ryobi is the faster one on a big flat lawn.
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 | LM2156SP | Ryobi 80V 30-inch |
|---|---|---|
| Deck | 21 inch steel | 30 inch steel |
| Blades | Select Cut stacked | Two side by side |
| Battery | 56V single port | 80V dual port |
| Runtime claim | Up to 90 min | Up to 1 acre |
| Platform | EGO 56V, full yard range | Ryobi 80V, few tools |
| Where sold | Widely | Home Depot |
Coverage
A 30-inch deck covers an acre in about the time a 21-inch deck covers two thirds of it. On a flat open lawn with few obstacles the Ryobi saves an hour a week. On a lawn with beds, trees, a gate and a slope, the Ryobi loses that hour to backing up and the EGO wins it back.
Cut quality
The EGO Select Cut stacks two blades and chops clippings twice; owners describe mulch that disappears. The Ryobi twin blades cut cleanly and the overlap between them is well managed, but the mulch is coarser and the bag fills faster.
Maneuverability
The Ryobi is heavy and wide and turns like a small tractor. The EGO turns around a tree in one motion and fits a standard gate. Slopes favor the EGO by a wide margin.
Batteries and platform
EGO 56V packs run the broadest battery yard range sold: blowers, trimmers, chainsaws, snow blowers and a riding mower. Ryobi 80V runs a few big tools and the smaller Ryobi 40V and 18V ranges use different packs. The Ryobi dual port holds two packs for the acre claim.
Yard jobs this decides
A quarter to a half acre with beds and a gate: the EGO. A flat acre with few obstacles and no gate narrower than a yard: the Ryobi. Anything with a slope: the EGO.
Common owner complaints
LM2156SP owners mention steel deck rust at the lip and weight. Ryobi 30-inch owners mention weight, width through gates and battery cost. Both are reliable.
Which one should you buy
Buy the LM2156SP for a normal suburban lawn and the finest cut. Buy the Ryobi 30-inch for a big flat lawn where time per mow matters more than finish.
Our verdict
The EGO LM2156SP takes this comparison for most lawns. The Ryobi 80V 30-inch is the right tool for a flat acre.
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
Lawn size
Under a half acre favors the EGO; a flat acre favors the Ryobi.
Obstacles
Gates, beds and slopes favor the 21-inch EGO.
Platform
EGO 56V runs a full yard; Ryobi 80V runs a few big tools.
Cut quality
The EGO mulches finer.
Our verdict
Nine inches of deck is the whole story. The Ryobi covers a flat acre in a session that a 21-inch mower stretches into two; the EGO fits through gates, around beds and up slopes the Ryobi cannot, and cuts finer. Under a half acre, the EGO. A flat acre with no obstacles, the Ryobi.
FAQs
A 30-inch deck with wheels is wider than many 36-inch gates allow once the handle is counted. Measure first.
The EGO Select Cut.
It is a Home Depot exclusive; the link on this page searches Amazon for comparable Ryobi mowers.
The EGO; the Ryobi is heavy and wide.
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