Saucony Endorphin Speed 5 vs Endorphin Speed 6
Updated July 31, 2026. Specs are men's US 9.
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THE SHORT ANSWER
Both are still stocked, so this is a real choice: the Endorphin Speed 6 is the lighter shoe by 0.6 oz, and older models usually sell under list once a successor ships.
Every spec, side by side
| Spec | Endorphin Speed 5 | Endorphin Speed 6 |
|---|---|---|
| FIT AND WEIGHT | ||
| Weight | 8.4 oz | 7.8 oz |
| Lighter despite the taller stack, which is the new foam doing the work. Back to the original Speed weight of 2020. | ||
| Widths | D, 2E | D, 2E |
| Upper | Light single-layer engineered mesh | Lightweight engineered mesh |
| CUSHIONING GEOMETRY | ||
| Heel stack | 36 mm | 39 mm |
| 3 mm more foam at both ends, drop unchanged at 8 mm. These are early-cycle specs from retailer sheets; Saucony's US site had not published a Speed 6 page as of late July 2026. | ||
| Forefoot stack | 28 mm | 31 mm |
| Drop | 8 mm | 8 mm |
| MATERIALS | ||
| Midsole | PWRRUN PB foam (expanded-bead PEBA) | PWRRUN PBX foam |
| The first foam change in the line's history. Retail copy calls PBX lighter and more cushioned; no major-outlet lab data existed as of late July 2026. | ||
| Plate | Nylon plate with a single medial wing | Redesigned nylon plate |
| VALUE | ||
| List price at launch | $175 | $175 |
| OTHER CHANGES | ||
| Plate shape | Single medial wing | Newly designed geometry |
Weighing whether to switch at all, rather than which of these two to buy? What replaced the Saucony Endorphin Speed 5 covers the verdict on the update, what loyalists made of it, and the closest alternatives from other brands.
Buy the Endorphin Speed 5
Stocked at AmazonAvailability last checked Jul 31, 2026.
Buy the Endorphin Speed 6
Stock unverifiedAvailability last checked Jul 31, 2026.
Questions runners ask
- Which is lighter, the Saucony Endorphin Speed 5 or the Endorphin Speed 6?
- The Endorphin Speed 6, by 0.6 oz in a men's US 9 (7.8 oz vs 8.4 oz).
- Do the Saucony Endorphin Speed 5 and Endorphin Speed 6 come in the same widths?
- Yes. Both run in D, 2E for men's sizes, so a width that fit in the Endorphin Speed 5 carries over to the Endorphin Speed 6.
- How do the stack heights compare?
- 36 mm heel and 28 mm forefoot on the Saucony Endorphin Speed 5, against 39 mm and 31 mm on the Endorphin Speed 6. That is 3 mm more under the heel and 3 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.
- Is the Endorphin Speed 6 still the newest Endorphin Speed?
- Yes. The Endorphin Speed 6 is the current Saucony Endorphin Speed, listing at $175 at launch.