What's the difference between 20 14 and 20 16 in Cantonese poetry?

Little brother can say that the model of 20 16 did not change much when 14 went on the market. Model 16 and model 14 have basically not changed much. The silver-plated beam on the outside is slightly narrow and has an amber gold color. Nothing else has changed, and the function of the interior has not changed significantly. The price is basically the same as that of the 14 model.