Products
Saucony Endorphin Pro 4
On Cloudboom Strike
Tested using Methodology v0.9
Updated Nov 14, 2025 09:26 PM
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Amazon.com
Tested using Methodology v0.9
Updated Jan 07, 2026 09:16 PM
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Weight
214.9 g (7.58 oz)
Heel-To-Toe Drop
8.8 mm
Plate
Carbon Fiber
Weight
207.2 g (7.31 oz)
Heel-To-Toe Drop
4.0 mm
Plate
Carbon Fiber
Our Verdict
Saucony Endorphin Pro 4
On Cloudboom Strike
The On Cloudboom Strike and Saucony Endorphin Pro 4 are both high-performance racing shoes but excel in different ways. The Saucony is more stable, provides better energy return, and has a stiffer forefoot foam, making it a stronger option for shorter-distance racing where a snappy, responsive ride is key. On the other hand, the On Running is more cushioned and lighter, making it a good choice for runners prioritizing comfort over longer distances while still maintaining race-day efficiency.
Variants
- Endorphin Pro 4 (Cavern/Violet - (Women - US 7))
- Endorphin Pro 4 (Citron/Silver - (Men - US 9))
- Cloudboom Strike (Limelight/Wolf - (Men - US 9))
- Cloudboom Strike (Limelight/Wolf - (Women - US 7))
Main Differences for
Marathon Racing
Marathon Racing
Threshold
Marathon Racing
8.3
8.4
Full Comparison
Design
Weight
7.7
7.9
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
214.9 g (7.58 oz)
207.2 g (7.31 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
39.3 mm
39.7 mm
Forefoot Stack Height
30.5 mm
35.7 mm
Heel-To-Toe Drop
8.8 mm
4.0 mm
Advertised Heel-To-Toe Drop
8.0 mm
4.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
87 mm (3.4")
84 mm (3.3")
Outsole Arch Width
74 mm (2.9")
64 mm (2.5")
Outsole Forefoot Width
114 mm (4.5")
112 mm (4.4")
Heel Width-To-Stack Ratio
2.21
2.16
Forefoot Width-To-Stack Ratio
3.74
3.14
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
270 mm (10.6")
274 mm (10.8")
Internal Heel Width
53 mm (2.1")
59 mm (2.3")
Internal Forefoot Width
87 mm (3.4")
95 mm (3.7")
Wide Sizing Available
No
No
Other Features
Other Features Photo
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Tongue Gusset Type
Non-gusseted
Non-gusseted
Plate
Carbon Fiber
Carbon Fiber
Performance
Heel Energy Return
8.4
8.2
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
83.2%
81.7%
Forefoot Energy Return
8.3
8.1
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
82.6%
81.5%
Heel Cushioning
7.4
8.0
Heel Cushioning Picture
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Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
3.14 J
3.65 J
Energy Absorbed At 1100N
9.21 J
9.70 J
Energy Absorbed At 1900N
16.16 J
16.52 J
Forefoot Cushioning
7.1
9.0
Forefoot Cushioning Picture
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Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
4.33 J
5.83 J
Energy Absorbed At 1300N
7.59 J
10.15 J
Energy Absorbed At 2050N
11.50 J
15.04 J
Heel Firmness
5.6
5.4
Heel Firmness
Preview Graph
Preview Graph
Firmness At 550N
55.2 N/mm
49.9 N/mm
Firmness At 1100N
103.1 N/mm
109.3 N/mm
Firmness At 1900N
250.7 N/mm
244.1 N/mm
Forefoot Firmness
8.1
7.0
Forefoot Firmness
Preview Graph
Preview Graph
Firmness At 800N
115.3 N/mm
84.0 N/mm
Firmness At 1300N
215.0 N/mm
167.9 N/mm
Firmness At 2050N
416.1 N/mm
343.0 N/mm
Forefoot Long Run Cushioning
6.5
8.6
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
7.05 J
9.59 J
Energy Absorbed At 20km
6.93 J
9.46 J
Energy Absorbed At 30km
6.84 J
9.40 J
Energy Absorbed At 40km
6.76 J
9.35 J
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Saucony Endorphin Pro 4
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Saucony Endorphin Pro 4 vs On Cloudboom Strike: Main Discussion
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