Is it worth buying a installment plan or signing a contract with an operator?

Hello. I would like to know your opinion. Is it worth buying a phone installment more precisely 20 installments. Telephone within 1800/2200 PLN or signing a contract with an operator for 24 months with a subscription within PLN 80/120 with an additional telephone fee PLN 300/400, I will add that when choosing installments you need to add a fee for an unlimited package for everything . Waiting for feedback and best regards.

On subscription in Plus and T-mobile, when not paying bills, they block imei (out of range) until payment is made.

In installments? Well, it depends on these installments, how much you get for this phone in total.

I guess always taking the operator out more expensive. I used to count it out of curiosity, because I heard or read somewhere that you can take the operator, sell the phone, and after paying all the installments of the subscription goes out to +. That's crazy, of course.

Even a colleague from two months ago took A5 2017 on the orange network in the subscription. I know the market prices of telephones and I will say it's expensive as hell. A5 2017 and unlimited all over a hundred per month on a two-year subscription. I don't know if it wasn't exactly PLN 110 or PLN 120 a month plus the telephone fee. It is much more profitable to buy a telephone separately and a subscription separately.

In RTV EURO AGD there are 0% installments without any insurance if they do not press any and 1 installment is from January until then you can collect some helmets and pay off several installments at once.

Offers unlimitet types are within PLN 25. so 24m x 25z comes out for PLN 600.
Now calculate exactly what subscription you would have to pay and how much the initial and possible fee for activating the number.
Here you need to know the specifics to count, but as the predecessors wrote such offers always come out more expensive than buying a stand-alone phone and not being bound by any contract.