this thing costs 10$, with shipment it will be more.
Now i live in Germany "Germany has the highest electricity prices worldwide. In December 2020, German households were charged around 0.37 U.S. dollars per kilowatt hour plus value added tax. "
0,37 $ for 1000Wh, i do have few phones and S20 Ultra does not have the biggest battery, but 5000mAh is a round number so i will just use that;
the batter inside of the phone feds the phone with about 3,7V and the capacity is 5000mAh(5Ah) so the power it actually has is around 18Wh = 3,7V*5Ah;
let's assume that while charging i lose 2Wh of power, and that each time i charge the phone from 0% to 100%, and that this happens each day.
so 365days * 20Wh = 7300Wh -> 7,3kWh
now back to the price, 0,37$ * 7,3kWh +some 20% taxes -> 0,5$*7,3kWh -> i pay around 3,7$ per year.
Now dear Superuser, you suggest him to get a device that is worth same as the power needed(in the country with most expensive power) for 3years of charging each day.
Regardless what country is that user from, he would never pay even 4$/year for charging.
And then i thought, well that TAPO itself uses power....
"Tapo P100 /Tapo P105 :
Typical Power Consumption（Relay ON）: 1.2W-1.6W
Standby Mode（Relay OFF） : < 1 W"
With this thing plugged in 24/7 , it will use per year close to what the charging of the phone uses.
I do realize that the user himself asks something none would ever dream of, but such answer from a superuser....i am just speechless.