In the early days, the brand of mobile phone accessories was mixed, and in the Nokia era, SGP had already made a name for itself in the Chinese market, and the best-selling Nokia ice cream series was the case. However, due to premature fame, many small domestic factories have imitated SGP products, and there are many fake SGP products that can be bought on Chinese e-commerce platforms, and the quality is uneven. SGP officially changed its name to SPIGEN SGP in 2012 and sold through authorized agents, and since then it has been deeply cultivated in the Chinese market, and in 2015, it passed the United States MIL-STD-810G military certification, and its product strength is enough to enter the forefront of the world's mobile phone case brands.
 
Most of SPIGEN SGP's products are low-key business style, with rounded edges and corners, and tough style phone cases usually have a great impact on the appearance of the mobile phone, while SGP is a relatively light and thin product in tough style mobile phone cases. Its product line can be roughly divided into transparent hard shell, soft shell and PC frame soft shell, the fit between the product and the mobile phone is good, the button part feels good, and the frame has an anti-slip strip design, so there will be no astringency. In addition, all SGP products have empty anti-collision airbags at the four corners, although they can play a slight cushioning role, but in practical application, the probability of the four corners of the ground is much smaller than the probability of the screen landing, and will not make the mobile phone unscathed, and due to the large gap, it may even cause the mobile phone to separate from the mobile phone case when it falls, causing secondary injury.
 
On Apple's 20th anniversary, SPIGEN SGP unveiled the Commemorative Edition iMac G3 Case, with a translucent case on the back that mimics the iMac G3's host design, and is available in the same colors as the iMac G3. The case consists of three parts, lined with soft silicone and two hard cases on the outside that are separated from the top and bottom. Due to its multi-layer construction, it is thicker than other SPIGEN cases.
 
The price of SPIGEN SGP is not as good as that of European and American brands, but the price of its iPhone cases is higher than that of its Samsung and Huawei cases, mostly concentrated in about 100-200 yuan. At present, there are still many imitations of SGP on the market, and it is recommended that consumers choose the official flagship store of e-commerce to buy.