Does less than a comparison adapter, which costs half as much

So far I had always Adapter with welded cable. However, these suffered regular broken cable.
After the 3rd adapter I have tried it in competition with a similar model like this.
In case of problems you will only need to replace the much cheaper cables.
However, the mobile phone with the cheap part was significantly worse loaded, despite 2A indication.
Did it ground these buy here the low price pushed (5 euros), and me (because of the good reviews).
This also provides 2 A, but costs twice and loads more slowly (Hab's measured it, with the same input voltage flows little less electricity over the phone). There is at the cheap product yet a blue display, what is missing this expensive product.
-> Costs twice as much and does even less. Conclusion: do not like it, 2 stars