ShoeGeometry

Puma Voyage Nitro 4 vs Saucony Xodus Ultra 4

Two shoes compared on measured geometry. Each cell carries a provenance badge; open a shoe for sources.

heel bonePuma Voyage Nitro 4: heel 38 mm, forefoot 32 mm (drop 6 mm); toe rocker 34 % of length, radius 41 % of length; heel bevel 11 % of length, 15 mm high at the back, ending about under the heel bone.Puma Voyage Nitro 4: toe rocker 34 % of lengthSaucony Xodus Ultra 4: heel 38 mm, forefoot 32 mm (drop 6 mm); toe rocker 37 % of length, radius 46 % of length; heel bevel 14 % of length, 9 mm high at the back, ending about under the heel bone.Saucony Xodus Ultra 4: toe rocker 37 % of length
  • Puma Voyage Nitro 438/32 mm · toe rocker 34 % · heel bevel 11 %
  • Saucony Xodus Ultra 438/32 mm · toe rocker 37 % · heel bevel 14 %
Illustrative profiles, not photographs: drawn from published stack heights and photo estimates of the unloaded shoes on a common length (300 mm), heels aligned, toe to the left; dots mark where each toe rocker starts; the dotted vertical line is under the heel bone (12 % of length), so a heel curve reaching past it is a bevel in front of the heel bone. Dotted lines use typical values where a shoe has no measurement. Exact values are in the table below.

Which suits you

If you wantPickBecause
A smoother roll at toe-offAbout the same34.2 vs 37.1 % toe rocker
More cushioning under the heelAbout the same38 vs 38 mm heel stack
More under the forefootAbout the same32 vs 32 mm forefoot stack
A lower dropAbout the same6 vs 6 mm drop

From the values below, with differences inside measurement noise shown as about the same. This describes the shoes, not what is right for your feet; comfort in the first few runs decides.

MetricPuma Voyage Nitro 4
Trail · Trail
Saucony Xodus Ultra 4
Trail · Trail
Heel-to-toe drop6 mmStated6 mmStated
Heel stack38 mmStated38 mmStated
Forefoot stack32 mmStated32 mmStated
Weight272 gStated—
Toe rocker34 %est.37 %est.
Rocker radius41 %est.46 %est.
Rocker rise angle31 degest.28 degest.
Rocker angle at toe63 degest.55 degest.
Toe tip over ground42 mm*est.45 mmest.
Visible rocker lift onset74.4 %est.76.1 %est.
Toe spring (relative)20.8 %est.20.2 %est.
Heel bevel length11.1 %est.13.9 %est.
Heel bevel height15 mmest.9 mm*est.
Midsole width (forefoot)—116.7 mmMeasured
Midsole width (heel)—97.3 mmMeasured
Toe box shape75 %est.—
Interior forefoot width—96.6 mmMeasured
Toebox width—71.6 mmMeasured
Longitudinal stiffness—38Derived
Midsole firmness—56Derived
PlateNo plateNo plate
Primary foamNITROFOAMPWRRUN PB
List price$160$170

Key differences

  • Heel-to-toe drop is about the same: 6 mm for Puma Voyage Nitro 4, 6 mm for Saucony Xodus Ultra 4.
  • Heel stack is about the same: 38 mm for Puma Voyage Nitro 4, 38 mm for Saucony Xodus Ultra 4.
  • Forefoot stack is about the same: 32 mm for Puma Voyage Nitro 4, 32 mm for Saucony Xodus Ultra 4.
  • Toe rocker is about the same: 34 % of length for Puma Voyage Nitro 4, 37 % of length for Saucony Xodus Ultra 4.

Read more about both shoes

We measure the shape. For how they feel over many miles, and for lab tests of cushioning, grip and fit:

Puma Voyage Nitro 4

No review found yet.

Saucony Xodus Ultra 4

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Puma Voyage Nitro 4 details · Saucony Xodus Ultra 4 details · Add more shoes