The Adidas Ultraboost 5X is a road running shoe and the Brooks Ghost 18 is a neutral road running shoe. The Ultraboost 5X is 0.5 oz lighter (9.7 oz vs 10.2 oz), costs about $60 less (from $90) and is rated higher by buyers (4.6 vs 4.3 out of 5).
Specs side by side
| Spec | Ultraboost 5X | Ghost 18 |
|---|---|---|
| Price | $90–$99 | $150 |
| Rating | 4.6 / 5 (2,104 reviews) | 4.3 / 5 (926 reviews) |
| Weight | 9.7 oz | 10.2 oz |
| Heel-to-toe drop | 10 mm | 10 mm |
| Heel stack height | 39 mm | — |
| Cushioning | — | Balanced |
| Support | — | Neutral |
| Surface | Road | Road |
| Available for | Men & Women | Men & Women |
Specs and prices from Adidas and Brooks, checked 2026-10-11. Weight is usually for a men's size 9–10.
Which should you get?
Get the Ultraboost 5X if…
- you want the lighter shoe
- you want to spend less
- you want the more widely reviewed shoe
Get the Ghost 18 if…
- it fits you better or you like its colors
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- Brooks Ghost 18 vs Nike Pegasus 42
- Brooks Ghost 18 vs Hoka Clifton 11
- Brooks Ghost 18 vs ASICS NOVABLAST 6
- Brooks Ghost 18 vs ASICS GEL-CUMULUS 28
- Brooks Ghost 18 vs Saucony Ride 19