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Compared from 273 real runner reviews

adidas Adizero Boston 13 vs Saucony Endorphin Speed 5 vs adidas Adizero Boston 12

Side by side from 273 real reviews. Every count is the same as on each shoe’s page.

How the signal works
The signal score

A score out of 100 for how well reviewed a product is next to others of its kind. It rises with positive reviews and with how many there are; negative and mixed reviews take points off. The best in each category scores in the 90s.

So a handful of glowing reviews can’t beat a product lots of people like. No sponsored placements.

82 signal

59 reviews

75 signal

42 reviews

93 signal

172 reviews

In short

Stable, firm tempo shoe with secure lockdown; some find it stiff, and the toe box is tapered.

Firm, stable and light for speed sessions; reviews are lukewarm, with several calling it flat or dull.

Firm, very durable and grippy for tempo days; the main complaint is heel slip and poor lockdown.

Liked mostreviews mentioning it

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Specs

Weight
255 g (9 oz), men's
Stack height
36 mm heel / 30 mm forefoot
Drop
6 mm
Weight
238 g (8.4 oz), men's
Stack height
36 mm heel / 28 mm forefoot
Drop
8 mm
Weight
260 g (9.2 oz), men's
Stack height
37 mm heel / 30.5 mm forefoot
Drop
6.5 mm

More comparisons

Shares count reviews with a clear verdict from the recent window, like each shoe’s page. Tags are counted over the same reviews. All shoes