使用計時器或秒錶

適用產品： HUAWEI Mate Xs(dual sim card 8gb+512gb)，HUAWEI Mate 20 X(dual sim card 6gb+128gb)，HUAWEI Mate 20 Pro(dual sim card 6gb+128gb、dual sim card 8gb+256gb)，HUAWEI nova 7(dual card 8gb+256gb)，HUAWEI P30(single sim card 6gb+128gb、dual sim card 6gb+128gb、dual sim card 8gb+128gb)，HUAWEI P30 Pro(single sim card 8gb+256gb、dual sim card 8gb+512gb、single sim card 6gb+128gb、dual sim card 6gb+128gb、dual sim card 8gb+256gb、single sim card 8gb+128gb、dual sim card 8gb+128gb)，PORSCHE DESIGN HUAWEI Mate 30 RS，HUAWEI nova 9(dual sim card 8gb+256gb)，HUAWEI Mate 30(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Mate 30 Pro 5G(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Mate 30 Pro(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Mate 40 Pro(single sim card 8gb+256gb、dual sim card 8gb+256gb)，HUAWEI nova 5T(dual sim card 6gb+256gb、dual sim card 6gb+128gb、single sim card 6gb+128gb、single sim card 6gb+256gb)，HUAWEI Mate 20 X (5G)(dual sim card 8gb+256gb)，HUAWEI P40(single sim card 8gb+128gb、dual sim card 8gb+128gb)，HUAWEI P40 Pro+(dual sim card 8gb+512gb)，HUAWEI P40 Pro(single sim card 8gb+256gb、dual sim card 8gb+256gb)，HUAWEI Mate 20(dual sim card 6gb+128gb)