| Spec | Rocket X 3 | Endorphin Pro 4 |
|---|---|---|
| Best price now | £126.06 | £99 |
| 90-day low | £110 | £93.54 |
| 30-day average | £191.64 | £141.65 |
| RRP | £220 | £230 |
| Category | Race | Race |
| Surface | Road | Road |
| Weight | 210g | 212g |
| Drop | 7mm | 8mm |
| Heel stack | 40mm | 39.5mm |
| Forefoot stack | 33mm | 31.5mm |
| Carbon plated | Yes | Yes |
| Stability | No | No |
| Review rating | - | - |
The Rocket X 3 is Hoka's do-it-all carbon racing shoe, the leaner, cheaper stablemate to the maximal Cielo X1. Where the Cielo goes big on stack and cushioning, the Rocket X 3 keeps things sharp: a PEBA midsole, a full carbon plate and a 40mm heel that stays legal for racing. At 210g it is not the lightest super shoe on the shelf, but it is versatile in a way the pure marathon rockets are not. This is a race shoe you can genuinely run across distances, from a 5K where you want turnover to a marathon where you want protection late on. We rate it as the sensible carbon racer for runners who want one fast shoe to cover everything rather than a shelf of specialists. At an RRP of 239 pounds it is priced with the elite pack, so you are paying for that flexibility.
Saucony softened the Endorphin Pro for version 4, and most reviewers think it was the right call. The Pro 3 was quick but harsh by the second half of a marathon; this one gives up a little of that snap for a ride that stays comfortable over the full distance. Women's Running UK rated it highly and recommends it for marathon and half marathon runners who care more about finishing strong than about the last few seconds. The trade-off is weight, since two reviews found it heavier than the Pro 3. It's a carbon racing shoe with an 8mm drop and a stable, wide base, which makes it one of the easier super shoes to run a whole marathon in if you land on your heels. The Endorphin Pro 5 has since replaced it at a lower RRP, so the Pro 4 makes most sense when a retailer is clearing it well below £230.
Putting two running shoes side by side shows the trade-offs quickly, but which one suits you still depends on how you run. Weight and stack height set the feel underfoot. A lighter shoe with a lower stack feels quick and nimble, and a heavier shoe with a taller stack gives a softer, more protective ride over long miles. Drop matters too: the lower the heel-to-toe drop, the more work your calves and Achilles do.
Prices come from the UK retailers we check every day. Best price now is the cheapest current price we can link you to. The 90-day low shows how cheap the shoe has been lately, and the 30-day average tells you whether today's price is a real drop or just what it usually sells for. If neither shoe is at a price you like yet, open its page and set a price alert. We'll email you when it falls.
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