Which is lighter, the Hoka Mach 5 or the Mach 6?

Neither by a meaningful margin. Both weigh about 8.2 oz in a men's US 9.

Do the Hoka Mach 5 and Mach 6 come in the same widths?

No. The Hoka Mach 5 came in D; the Mach 6 runs in D, 2E. The Mach 6 added 2E.

How do the stack heights compare?

29 mm heel and 24 mm forefoot on the Hoka Mach 5, against 37 mm and 32 mm on the Mach 6. That is 8 mm more under the heel and 8 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.

Is the Mach 6 still the newest Mach?

No. The Mach 7 replaced it in 2026, so the Mach 6 now sells as an older model and usually below its $140 list price.

Hoka Mach 5 vs Mach 6

Updated August 1, 2026. Specs are men's US 9.

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THE SHORT ANSWER

Whichever your size still exists in. The Mach 5 is discontinued at retail, so remaining pairs sell against a thinning size run, while the Mach 6 has a full one.

Mach 5 · 2022

Mach 6 · 2024

Every spec, side by side

Spec	Mach 5	Mach 6
FIT AND WEIGHT
Weight	8.2 oz	8.2 oz
Widths	D	D, 2E
Upper	Breathable mesh with more reinforcement and a thin gusseted tongue	Creel jacquard mesh with a gusseted tongue
	Narrower, lower-volume fit; wide-footed runners moved to the 2E.
CUSHIONING GEOMETRY
Heel stack	29 mm	37 mm
	Most of that 8 mm jump is a spec-convention change: the 6 is the first Mach quoted with insole and strobel included. Lab calipers put the real gain near 5 mm at the heel and under 2 mm up front, with the measured drop closer to 10 mm than the quoted 5.
Forefoot stack	24 mm	32 mm
Drop	5 mm	5 mm
MATERIALS
Midsole	ProFly+ EVA, softer than the 4, still with a rubberized-foam outsole	Supercritical EVA with a full Durabrasion rubber outsole
	A single supercritical slab replaces the dual-density stack. Snappier and noticeably stiffer; a minority of Mach 5 fans missed the old flex.
VALUE
List price at launch	$140	$140
OTHER CHANGES
Outsole	Rubberized foam	Durabrasion rubber
	The fix for the Mach 5 era's defining complaint. Durability stopped being the reason to skip this line.

Weighing whether to switch at all, rather than which of these two to buy? What replaced the Hoka Mach 5 covers the verdict on the update, what loyalists made of it, and the closest alternatives from other brands.

Buy the Mach 5

Sizes running out

Discontinued at retail. Amazon carries what remains, so treat an in-stock size as a closing window, and expect prices to swing.

Men's: Check remaining stock Women's: Check remaining stock

Availability last checked Aug 1, 2026.

Buy the Mach 6

Stocked at Amazon

Men's: Check price at Amazon Women's: Check price at Amazon

Availability last checked Aug 1, 2026.

Questions runners ask

Which is lighter, the Hoka Mach 5 or the Mach 6?: Neither by a meaningful margin. Both weigh about 8.2 oz in a men's US 9.
Do the Hoka Mach 5 and Mach 6 come in the same widths?: No. The Hoka Mach 5 came in D; the Mach 6 runs in D, 2E. The Mach 6 added 2E.
How do the stack heights compare?: 29 mm heel and 24 mm forefoot on the Hoka Mach 5, against 37 mm and 32 mm on the Mach 6. That is 8 mm more under the heel and 8 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.
Is the Mach 6 still the newest Mach?: No. The Mach 7 replaced it in 2026, so the Mach 6 now sells as an older model and usually below its $140 list price.