Answer; In 2021, which mobile phone times the strongest, to say that the strongest signal of the mobile phone is the number of Huawei p30 mobile phone, or opop666 mobile phone these two brands of mobile phone signal is the strongest and best, in a fixed area at the same time, other brands of mobile phones are best to receive more than three seconds to receive the signal, but these two brands of mobile phones can receive the signal in less than one second.