SmartWater Still Price at Costa Coffee (2026)
A SmartWater Still costs £3.05 at Costa Coffee in United Kingdom (updated August 2026).
Costa Coffee's SmartWater Still is priced at £3.05 in the United Kingdom right now (August 2026). That's about 1% below the average Costa Coffee Chilled Drink item — the 3rd-cheapest of 14 we track. It's available at around 40 Costa Coffee locations across the United Kingdom. Prices are sourced from delivery platforms and refreshed regularly. Set a free alert to know the moment this price changes on MenuPriceToday.
How this compares in Chilled Drinks
14 items tracked| This item | £3.05 |
| Chilled Drinks median | £3.10 |
| Cheapest — Innocent Immunity Shot | £2.60 |
| Most expensive — Costa Latte RTD 330ml | £3.30 |
| vs Chilled Drinks median | −2% |
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