Sainsbury's Watermelon — 300g
As of 7 Oct 2026, Sainsbury's Watermelon 300g is cheapest at Sainsbury's at £2.50 (£8.33/1 kg) in United Kingdom.
Prices updated 7 Oct 2026
Lowest recorded price: £2.50 at Sainsbury's (7 Oct); highest: £4.00 — currently £2.50 at Sainsbury's. Tracked since Jul 2026.
Showing prices and history for this variant plus 7 sibling variations — the same product and flavour across pack sizes, with unit prices keeping different sizes comparable. Lowest and highest values match the extension's price-history panel.
Price History
Price over timeLoading price history…
Price
| Retailer | Brand | Size | Price | Unit Price | In Stock | Updated |
|---|---|---|---|---|---|---|
 Sainsbury's | Sainsbury's | 540g | £4.00 | £0.74/100gBest | In stock | 7 Oct |
 Tesco | Tesco | 5 pack | £3.75 | £3.75/ea | In stock | 10 Oct |
| Sainsbury's | Sainsbury's | Standard | £3.75 | £3.75/ea | In stock | 7 Oct |
| Sainsbury's | Sainsbury's | 300g | £2.50 | £0.83/100g | In stock | 7 Oct |
 Aldi UK | Nature's Pick | 1 each | £2.69 | — | In stock | 8 Oct |
 Morrisons | Morrisons | Standard | £3.75 | — | In stock | 9 Oct |
| Morrisons | Morrisons | Standard | £3.75 | — | In stock | 9 Oct |
| Morrisons | Morrisons | 300g | £2.50 | — | In stock | 15 Julout of date · not compared |
Sainsbury'sIn stock£4.00£0.74/100gBest
Sainsbury's · 540g
TescoIn stock£3.75£3.75/ea
Tesco · 5 pack
Sainsbury'sIn stock£3.75£3.75/ea
Sainsbury's · Standard
Sainsbury'sIn stock£2.50£0.83/100g
Sainsbury's · 300g
Aldi UKIn stock£2.69
Nature's Pick · 1 each
MorrisonsIn stock£3.75
Morrisons · Standard
MorrisonsIn stock£3.75
Morrisons · Standard
MorrisonsIn stock£2.50
Morrisons · 300g
Cheapest by brand
Ranked per 1 kg at each item's cheapest store
Cheapest by product
Ranked per 1 kg at each item's cheapest store
2 brands available
Aldi UKMorrisonsSainsbury'sTescoUpdating prices — showing the previous selection until the new prices arrive.
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Prices shown are indicative and may vary by store location. Confirm pricing at checkout.
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Frequently asked questions
- Where is Sainsbury's Watermelon 300g cheapest?
- Sainsbury's has the lowest price at £2.50 (£8.33/1 kg).
- What is the unit price of Sainsbury's Watermelon 300g?
- Priced per 100g. Sainsbury's offers the best value at £0.83/100g.
- What is the lowest price ever for Sainsbury's Watermelon 300g?
- The lowest price CartSorted has recorded for Sainsbury's Watermelon 300g is £2.50 at Sainsbury's (7 Oct), since we began tracking in Jul 2026. The current cheapest price is £2.50 at Sainsbury's.