Can I pay in installments at Saturn for 25 euro per month?

For example, a laptop for 1000 and I pay 25 euro per month or is the amount too small?

Ne, will be too small, because you pay over 3 years for a small device. Questions don't cost anything of course - but you have to be creditworthy in principle (regular income from employment or from self-employment in the amount of at least 1000 euro and of course be of legal age)

EDIT: See in your other question that you are only 15. You are generally not allowed to make any installments with this.

Rates from 10 euro and terms up to 60 months, Saturn states, it would be fine (if you meet all the requirements) whether it makes sense to finance a 1000 euro laptop over 3 years is another question.

Why do you need a laptop for 1,000 euro?

One is enough for 450 euro.

Especially if you don't have the money.

There are also good used ones for 250 euro.

see: notebookbilliger.de

Why not? Can pay in full after 1 year

If the TE were not a minor: Registering a SMALL amount with a long term in Schufa has a negative effect on the score. Because you then assume that the person actually needs such a long term

To play GTA e.g. You need one for at least 800 euro

To play, you get a PC that doesn't cost 500 euro instead of a more expensive notebook.

If you are over 18 and the last 3 pay slips are above the attachable limit, then you can do it. Without income it will not work.