Saucony Endorphin Pro 4 vs Adidas Adizero Adios Pro Evo 2:
Which to Choose

Start with the number that actually separates them: weight. The Adios Pro Evo 2 comes in at roughly 139g in a men's US 9, while the Endorphin Pro 4 sits around 218g — a difference of nearly 80g, which is enormous in this category and something you feel on every stride, especially late in a long race. That weight savings is the Evo 2's whole reason for existing: its CNC-carved Lightstrike Pro Evo foam and razor-thin upper strip away everything non-essential to produce the lightest ride here. The Endorphin Pro 4, by contrast, pairs PWRRUN PB foam with a full-length carbon plate in a more substantial, more conventionally built package that still feels plush and protective underfoot. Both ride on a tall ~40mm heel stack with a moderate drop — 8mm on the Saucony versus a measured ~7mm on the adidas (adidas officially lists 3mm, but calipers read closer to 38/31mm) — so the heel-to-toe geometry is effectively similar, and both use a pronounced rocker plus plate/rods to tip you forward onto a quick cadence. The difference in feel is less about slope and more about mass and propulsion mechanism: the Saucony's carbon plate gives a snappy, stable-at-speed rocker, while the Evo 2's carbon-infused Energy Rods 2.0 under a disappearing-light platform feel even more frantic and eager but noticeably more precarious when your form breaks down. Fit diverges too — the Evo 2's toebox runs very snug and the platform is narrow, demanding a precise midfoot-to-forefoot strike, whereas the Pro 4's engineered mesh is a touch more accommodating. On use case, the Pro 4 genuinely stretches from a fast 10K up through the marathon with the half as its sweet spot, while the Evo 2 really only makes sense from the half upward, with the full marathon as its purpose. Durability is limited on both — these are race-day tools, not daily trainers.