NEW YORK — Subscribers to Amazon.com’s Prime service can now get strawberries, milk, meats and frozen dinners on the same day they order them as the company expands its fast-delivery option to perishable food items, Amazon said on Wednesday.

It is the latest move by Amazon to compete with delivery services offered by Walmart+ and Instacart.

The new same-day delivery service is free for Prime members, who pay $14.99 monthly or $139 annually, for orders over $25. Shoppers without a Prime membership have to pay a $12.99 fee, regardless of order size, to use the new service. Walmart’s membership service, Walmart+, costs $98 a year and offers same-day delivery in under three hours – with some orders arriving in as little as 30 minutes.

As of Wednesday, Amazon shoppers in more than 1,000 U.S.

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