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Because the wireless charging protocols and materials supported by the two wireless charging models are different, the purchase suggestions are as follows: Huawei users, select Huawei; Millet users, choose millet; For Apple iPhone users, choose Huawei; For Samsung users, choose Huawei; LG users, choose Xiaomi; SONY users, choose Xiaomi; Other users can choose according to their preferences, because both models only support the ordinary 5W wireless charging of other phones.
Basically no difference, some fast charge is to increase the voltage, some to increase the current.