What is the difference between Education store iPad and normal iPad?

There a no technical differences between devices sold through Apple's Educational or regular Retail stores.

Educational/Student Discount programmes from Apple, where available, require that eligible students are enrolled in a recognised higher education programme within the country of purchase.

In most countries, the key to accessing Apple’s Educational Discount programme is being registered with UNiDAYS.

Education Pricing and Student Discounts - Education - Apple

https://www.myunidays.com

There isn't any operational differences or limitations, but there are restrictions on who can buy from the education store.

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