In conclusion: For mainland China users, Hong Kong VPS offers the best overall experience. Japan VPS is an alternative when budget is limited. US VPS is not recommended unless your users are not in mainland China or you have specific needs. Below, I will discuss VPS in these three locations from six dimensions: latency, network lines, price, bandwidth, stability, and ICP filing.

　　I. Latency Comparison: Physical Distance Determines the Lower Limit

　　Latency is the most direct experience for mainland China users. Data packets travel from your computer, through routers, the ISP's backbone network, international exit points, and submarine cables, finally reaching the server—and then returning along the same path. This round-trip time is latency.

　　Hong Kong VPS: Pinging from South China (Guangdong, Fujian), latency can be as low as 10-30ms, almost indistinguishable from domestic servers. East and North China also see latency between 30-60ms. What does this mean? Accessing a Hong Kong server from Beijing might be faster than accessing a server in Xinjiang.

　　Japan VPS: From Shanghai to Tokyo, the physical distance is approximately 2000 kilometers, with a theoretical latency of around 70-95ms. In reality, due to the need for ISP routing and international exits, actual tests typically show latency between 85-120ms. This latency is acceptable for web browsing, but gaming and live video streaming will feel noticeably slower.

　　US VPS: Even the closest West Coast data centers to mainland China (Los Angeles, San Jose) require crossing the entire Pacific Ocean from Shanghai. CN2 optimized lines can achieve 135-155ms, while ordinary lines spike to over 220ms. Typing Enter takes about 0.2 seconds to see a response—if you're typing commands via SSH, the lag will drive you crazy.

　　Summary: Hong Kong wins hands down in terms of latency, followed by Japan, with the US at the bottom. If your users are in mainland China, Hong Kong VPS is the only option that can provide a "domestic-like experience."

　　II. Line Quality: The Core of Stability

　　Latency refers to "speed," while line quality determines "stability"—especially important is whether there will be lag during peak hours.

　　Hong Kong VPS offers the most diverse and complex network options:

　　CN2 GIA: China Telecom's premium network, using a dedicated 59.43 node throughout. Peak packet loss is below 0.3%, with stable latency of 30-50ms. This is the "ceiling" for mainland users accessing Hong Kong.

　　CMI: Direct international connection for China Mobile users, the preferred choice for China Mobile users, latency 35-55ms.

　　AS9929: China Unicom's premium network, the preferred choice for China Unicom users, latency 30-50ms.

　　CN2 GT: Partially optimized, acceptable during the day, but experiencing 1%-3% packet loss during peak evening hours.

　　Standard international lines (PCCW/HKBN/163): Peak packet loss rate 5%-15%, strongly discouraged.

　　Japan VPS Networks:

　　The mainstream optimized lines in the Japanese market are SoftBank and IIJ. SoftBank is relatively friendly to China Telecom and China Unicom users, with latency controlled to 50-80ms during peak evening hours; IIJ is more stable, with high global export quality, but slightly higher latency. The problem is that many Japanese VPS providers use ordinary international lines (NTT, etc.), which suffer from severe routing and high packet loss rates during peak evening hours, requiring careful selection when purchasing.

　　US VPS Lines:

　　The US also has CN2 GIA lines, but the distance is a factor, and even optimization cannot overcome physical limitations. A genuine CN2 GIA US West Coast data center maintains stable latency of 135-155ms during peak evening hours, with a packet loss rate of less than 1%. However, the market has many "pseudo-CN2" lines—outbound via CN2, inbound via ordinary 163, and these mixed lines are just as congested during peak hours.

　　Summary: Line quality directly affects the experience during peak evening hours. Hong Kong, with its CN2 GIA "nuclear weapon," has an irreplaceable advantage in stability.

　　III. Price Comparison: Hong Kong VPS Isn't Actually That Expensive

　　Many people have the impression that Hong Kong VPS is ridiculously expensive, while US VPS is incredibly cheap. This impression is partly correct and partly incorrect.

　　Let's take Jtti.cc's 2026 pricing as an example (calculated on an annual basis):

　　See? For entry-level configurations, the prices from all three providers are actually quite similar, ranging from 200-280 RMB/year, with not a significant difference.

　　The real difference lies in high-end configurations and large bandwidth. Hong Kong has a scarcity of international bandwidth, with 2M-5M being the norm; while US data centers have abundant bandwidth resources, with 10M-50M being common. If you need to run high-traffic applications (such as video sites or download sites), the unit bandwidth cost of a US VPS is indeed lower.

　　Also, pay attention to renewal prices. Many providers routinely offer "low price for the first year, double the price in the second year," so be sure to confirm the renewal price before placing an order.

　　IV. Bandwidth: Hong Kong's "Small Pipes" are a Major Drawback

　　This is the biggest weakness of Hong Kong VPS.

　　Because international bandwidth costs in Hong Kong are significantly higher than in the US and Japan, a Hong Kong VPS typically only offers 2M-10M bandwidth. 2M bandwidth provides a download speed of approximately 250KB/s, enough for a small website, but insufficient for hosting high-definition videos or transferring large files.

　　Japanese VPS generally offer 5M-50M bandwidth, while US VPS start at 50M, with some even offering 100M or 200M.

　　Therefore, you need to clearly understand your business scenario:

　　Corporate websites, personal blogs, API services: 2M-5M is sufficient; Hong Kong is fine.

　　Image websites, e-commerce sites, download sites: Require 10M or more; Hong Kong is not suitable.

　　Video streaming, game servers: Require high bandwidth + low latency. This requirement is inherently contradictory; either invest more in a high-spec Hong Kong server or sacrifice low latency.

　　V. Stability: Peak hours are the true test.

　　"Everything works fine during the day, but crashes at 8 PM"—this is a common pitfall.

　　The performance of Hong Kong CN2 GIA lines during peak evening hours can be described as "rock-solid." Because CN2 GIA has independent links and QoS priorities, it doesn't compete with regular traffic, resulting in 30-50ms latency and less than 0.3% packet loss, with virtually no fluctuation throughout the day.

　　Japan SoftBank lines also perform reasonably well during peak evening hours, but with slight fluctuations: 50-80ms latency and 1%-2% packet loss. Regular Japan international lines (NTT) can experience packet loss rates of 5%-10% during peak evening hours, resulting in a precipitous drop in performance.

　　US CN2 GIA West Coast data centers have packet loss rates below 1% during peak evening hours, but latency remains stubbornly high at 135-155ms. Regular US lines experience packet loss rates of 5%-15% during peak evening hours, and combined with high latency, they are essentially "usable but unpleasant to use."

　　VI. ICP Filing: Hong Kong's Hidden Advantages

　　This may seem a bit sensitive, but it's very useful for many individual website owners.

　　Domestic servers require ICP filing, a process that takes anywhere from a week to a month. Hong Kong VPS doesn't require registration; you can use it simply by resolving your domain name there. Furthermore, Hong Kong has much more lenient content restrictions than mainland China, making it more flexible for personal blogs, e-commerce websites, and technical sharing.

　　Japanese and US VPS also don't require registration, but their access stability from mainland China is not as good as Hong Kong's.

　　In conclusion: the core question when choosing between Hong Kong, Japan, and the US is: where are your users?

　　If your users are in mainland China and your budget allows → Hong Kong CN2 GIA is the optimal solution, bar none. If your users are in mainland China but your budget is limited → Japan's SoftBank line will offer a slightly worse experience, but it's still usable. If your users are global or require high bandwidth → US CN2 GIA, trading latency for bandwidth and price.

　　One pitfall needs special mention: regardless of where you choose a VPS, always test the IP first, especially during peak evening hours (8:00 PM - 11:00 PM). Many providers work perfectly during the day, but their performance deteriorates at night. Spending 10 minutes testing is better than spending hundreds of dollars on a bad experience.