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Compared from 43 real runner reviews

Brooks Caldera 8 vs Saucony Xodus Ultra 4 vs Altra Olympus 275

Side by side from 43 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.

67 signal

11 reviews

73 signal

16 reviews

78 signal

16 reviews

In short

Runners like it as a stable, comfortable trail shoe that does well on descents, but fit is a recurring problem, with some finding it too narrow or tight.

Trail runners like the Xodus Ultra 4's cushioning and comfort, but two had blisters or severe foot pain on longer, technical efforts.

Cushioned, grippy and tough for long technical days; the gripes are a wide shape and a heel that folds.

Liked mostreviews mentioning it

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Specs

Weight
309 g (10.9 oz), men's
Stack height
39 mm heel / 33 mm forefoot
Drop
6 mm
Weight
309 g (10.9 oz), men's
Stack height
36 mm heel / 30 mm forefoot
Drop
6 mm
Weight
305 g (10.8 oz), men's
Stack height
33 mm heel / 33 mm forefoot
Drop
0 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