Endorphin Speed 3 vs 4 – Check Which One Is Best & Why?

Why Do I Recommend The Endorphin Speed 4? 

• The Saucony Endorphin Speed 4 has an updated PWRRUN PB midsole geometry for smoother transitions and better energy return during long runs, whereas the Saucony Endorphin Speed 3 uses the previous midsole geometry that feels firmer and less fluid.
• Saucony Endorphin Speed 4 features a slightly higher stack height of 38 mm in the heel and 30 mm in the forefoot for improved cushioning on extended mileage, while the Saucony Endorphin Speed 3 has a 36 mm heel and 28 mm forefoot.
• It comes with a redesigned nylon plate tuned for a smoother rolling motion to reduce calf strain during daily training, while the Saucony Endorphin Speed 3 uses a more aggressive plate design.
• The Saucony Endorphin Speed 4 includes expanded outsole rubber coverage for enhanced durability and traction on wet roads, whereas the Saucony Endorphin Speed 3 has thinner outsole coverage.
• Saucony Endorphin Speed 4 has a refined engineered mesh upper with improved breathability and support for greater comfort on hot runs, while the Saucony Endorphin Speed 3 uses a lighter mesh that is less structured and less breathable over time.
• It comes with a gusseted, padded tongue and cushioned heel collar to prevent irritation and improve lockdown on long sessions, whereas the Saucony Endorphin Speed 3 uses a thinner semi-gusseted tongue and leaner collar.
• The Saucony Endorphin Speed 4 features a wider and more stable base for better balance at slower paces and during cornering, while the Saucony Endorphin Speed 3 has a narrower platform.
• Saucony Endorphin Speed 4 supports higher durability across both midsole and outsole to extend the shoe’s lifespan for more training miles, whereas the Saucony Endorphin Speed 3 has slightly lower durability due to thinner outsole rubber and firmer midsole.

Maybe the Endorphin Speed 3 price can make you comfortable because it’s a little bit cheaper than the Endorphin Speed 4. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

What Common Both Can Do?

• Brand: Both models are part of Saucony’s performance running lineup, maintaining consistent design language and innovation. This ensures that runners familiar with one model can easily transition to the other without major brand changes.
• Shoe Category: Both the Endorphin Speed 4 and Speed 3 are classified as performance trainer-racers. This means they are versatile enough for both everyday training miles and faster workouts or races.
• Midsole Material: Each model uses Saucony’s PWRRUN PB foam, a lightweight and bouncy PEBA-based material. This provides strong energy return and responsiveness that appeals to competitive runners.
• Plate Material: Both models incorporate a nylon plate. Unlike rigid carbon plates, nylon allows a balance of propulsion and flexibility, making these shoes more forgiving for daily use.
• Drop: Both shoes have an 8 mm heel-to-toe drop. This geometry supports efficient forward motion while remaining comfortable for a wide range of runners.
• Cushioning Style: Each shoe emphasizes lightweight, responsive cushioning rather than heavy plush foam. This balance helps runners maintain speed while still protecting joints from impact.
• Intended Use: Both are designed for dual-purpose use—capable of handling daily training volume while being fast enough for race day. This versatility is what makes the Endorphin Speed line so popular.
• Speedroll Technology: Both models feature Saucony’s Speedroll rocker geometry, encouraging smoother transitions and a rolling motion that reduces energy loss during runs.
• Outsole Rubber Type: Each shoe uses XT-900 carbon rubber on high-wear areas of the outsole. This enhances durability and traction without adding excessive weight.
• Breathable Mesh Upper: Both models have a lightweight, breathable mesh upper to improve ventilation during long or hot runs. This prevents overheating and discomfort on extended sessions.
• Lightweight Build: Both versions are notably lighter than many daily trainers in the market. This helps runners maintain speed and efficiency without feeling weighed down.
• Neutral Support: Each model is a neutral running shoe, best suited for runners without significant overpronation. This allows the shoe to feel fast and natural underfoot.
• Heel Counter: Both have a reinforced heel counter that helps with stability and heel lockdown. This provides a secure fit, preventing slipping during faster efforts.
• Lace System: Each shoe uses a traditional lace-up system. This simple but effective design allows for customizable lockdown to match different foot shapes.
• Flexibility: Both shoes maintain flexibility thanks to the nylon plate and foam design. This makes them easier to use across multiple run types compared to stiffer carbon-plated shoes.
• Rocker Geometry: Both feature rocker shaping that aids smooth toe-off and efficiency. This geometry complements the plate and foam for an energetic ride.