The ASICS METASPEED SKY is a neutral road running shoe and the Nike Alphafly 4 is a road running shoe. The METASPEED SKY is 0.8 oz lighter (5.8 oz vs 6.6 oz) and costs about $30 less (from $250). The Alphafly 4 has a lower heel-to-toe drop (8 mm vs 10.6 mm).
Specs side by side
| Spec | METASPEED SKY | Alphafly 4 |
|---|---|---|
| Price | $250 | $280 |
| Rating | 4.5 / 5 (210 reviews) | — |
| Weight | 5.8 oz | 6.6 oz |
| Heel-to-toe drop | 10.6 mm | 8 mm |
| Support | Neutral | — |
| Surface | Road | Road |
| Available for | Women | Men & Women |
Specs and prices from ASICS and Nike, checked 2026-10-11. Weight is usually for a men's size 9–10.
Which should you get?
Get the METASPEED SKY if…
- you want the lighter shoe
- you want to spend less
- you land on your heel and like a higher drop
Get the Alphafly 4 if…
- you land on your midfoot or want a lower drop
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