I ended up with this specific charger after thorough market research. The top company in the field is considered to be c-tech, which, however, prices its products accordingly due to its strong brand. There is also noco in the market, a company that invests heavily in marketing.
Returning to the victron ip65 blue smart charger. The positives are that it comes with Bluetooth, and there is also a corresponding application available in the store for connection, monitoring, and management from the mobile phone.
The charging was done on a varta 60 Ah battery, which was purchased on 12/12/15. The car has been idle for 22 days, so I thought it would be good to do a charge. I can say that the charger pleasantly surprised me. It reached the absorption point relatively quickly, where the battery is at 80% charge and considered ready for use. The next stage is full charged (float). I was impressed by the low temperature of the charger during the charging process. I should add that the charger has protection against incorrect pole connection.
In summary, I am happy with my purchase. It is not among the cheap chargers, but in comparison to the competition in its category, it offers something more with the software it has. The additional feature I wanted it to have is a case. In the future, I will come back with more.