It is generally cheaper to buy a watch in an agency than in a specialty store. Generally, there is about 20% discount at present, but it depends on what style and price of the watch.

You can buy a mobile phone in a general chain store, or in a mobile phone shop in Nathan Road and Mong Kok.

There is still a discount on clothes at present (February), but there is generally no discount in April. It's all new, summer clothes. I suggest you buy these clothes in the specialty stores in Causeway Bay and Tsim Sha Tsui, Kowloon. The discount in April is generally gone. But if you go to some direct-sale stores, there may be some discounts (30%-50%), but the styles are out of date and the sizes are not complete. For example, the Haiyi Industrial and Trade Building in south horizons, Ap Lei Chau, in the south of Hong Kong Island, is well worth seeing.