There is no difference in quality between the two.

两者在质量上无差异。

youdao

I guarantee that there is no difference in quality between the products we'll send you next month and what samples you saw just now.

我保证我方下个月将发送的产品和你们刚才所见到的样品在质量上不会有一丝一毫的差别。

youdao

You might be pleasantly surprised -sometimes, there's little or no difference in quality (the products may even be produced in the same factory, by the same methods, and simply packaged differently).

你可能会高兴的发现，有时他们在质量上没什么大的差别(这些商品甚至可能是在同一家工厂采用同一种方式生产的，只不过是包装不同罢了。)

youdao

To me, the difference in price is not enough to justify the difference in quality.

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Furthermore, the staff are rotated to deal with both paying and non-paying patients so there is no difference in quality.

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There was no difference in quality of life between the two groups and delaying treatment led to fewer reports of side effects.

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