Side by side comparison: On Cloudflow 5 vs Saucony Endorphin Speed 5
Product Judgment
Solid
released 2025
Price Judgment
Unjustified
Widely Available
Performance
Run Fitness
Pros & Cons
Stable at speed
Durable upper
Secure fit
Low energy return
Heavy for tempo shoe
Limited breathability
Specs
| Best for | 3:45-5:15 min/km |
| Drop | 6 mm |
| Stack | 32.8 mm heel / 28.7 mm forefoot |
| Weight | 271 g |
| Terrain | road |
| Width | medium |
| Pronation | neutral |
| Season | all seasons |
| Plate | Composite |
Judgment Summary
Firm, stable tempo trainer with aggressive rocker; limited energy return and heavy for its class.
Where to Buy
Product Judgment
Strong
released 2025
Price Judgment
Buy
Widely Available
Performance
Run Fitness
Pros & Cons
Snappy, efficient ride
Improved upper breathability
Enhanced outsole durability
Firmer than some prefer
Slightly heavier than v4
Specs
| Best for | 3:45-5:15 min/km |
| Drop | 8 mm |
| Stack | 36 mm heel / 28 mm forefoot |
| Weight | 237 g |
| Terrain | road |
| Width | medium |
| Pronation | neutral |
| Season | all seasons |
| Plate | Composite |
Judgment Summary
Versatile, fast trainer with a snappy ride and improved comfort; excels at tempo and speedwork.
Where to Buy