Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- Walker Walker Model H38i — commercial: daily paid use and high acreage; 60-inch deck; gas powered
- Exmark Vertex X-Series (60 in EFI) — commercial: daily paid use and high acreage; 60-inch deck; gas powered
What’s different? The 4 differences that matter most, from the published figures.
- Walker Model H38i uses a Rehlko engine; Vertex X-Series (60 in EFI) uses a Kawasaki FX1000V engine. The engine maker builds the engine; the mower maker chooses the model, rating and fit, so the badge alone does not settle output or longevity.
- Walker Model H38i holds 9.4 gal (35.6 L) of fuel; Vertex X-Series (60 in EFI) holds 14 gal (53 L) of fuel, a 4.6 gal difference. Tank size bounds how long a machine runs between stops. Consumption varies with engine, load and speed, so hours per tank are not fixed.
- Walker Model H38i has a published top speed of 10 mph; Vertex X-Series (60 in EFI) has a published top speed of 12 mph, a 2 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- Walker Model H38i cuts from 1 in (25 mm) to 5 in (127 mm); Vertex X-Series (60 in EFI) cuts from 1.5 in (38 mm) to 5 in (127 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
calculated figures and what isn’t comparable
Calculated by MowerFacts
- Walker Model H38i works out to 4.8 acres/hour; Vertex X-Series (60 in EFI) works out to 5.8 acres/hour, a 1.0 acres/hour difference. Calculated by MowerFacts from deck width and the published top speed at 80% efficiency; it is not a manufacturer figure, and real mowing is slower.
Not comparable
- Displacement: not published for Vertex X-Series (60 in EFI).
- Weight: not published for Vertex X-Series (60 in EFI).
- Transmission: not published for Vertex X-Series (60 in EFI).
- Fuel Type: not published for Vertex X-Series (60 in EFI).
- Price: Walker Model H38i is dealer quote only.
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | Walker Model H38i Walker · Commercial |
Vertex X-Series (60 in EFI) Exmark · Commercial |
|---|---|---|
| List price | dealer quote | $17,099 |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Rehlko | Kawasaki FX1000V |
| Displacement | 61 ci (999 cc) | — |
| Engine Power | 38 hp | 38.5 hp |
| Fuel Type | Automotive Grade Unleaded Gasoline (87 Octane Minimum, 10% Ethanol Maximum) | — |
| Deck | ||
| Cutting Width | 60 in (1524 mm) | 60 in (1524 mm) |
| Min Cut Height | 1 in (25 mm) | 1.5 in (38 mm) |
| Max Cut Height | 5 in (127 mm) | 5 in (127 mm) |
| Drive | ||
| Transmission | Dual Independent Hydro-Gear ZT3400 Integrated Transaxles | — |
| Ground Speed | 10 mph | 12 mph |
| Dimensions | ||
| Weight | 808 lbs (366.5 kg) | — |
| Fuel Capacity | 9.4 gal (35.6 L) | 14 gal (53 L) |
Where these models differ, explained
Walker Model H38i: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — walker.com.
Vertex X-Series (60 in EFI): Specs verified against the manufacturer spec sheet on Jun 6, 2026 — exmark.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.