Binance and OKX are the two most popular exchanges among Chinese users. Register on Binance and download the Binance app.
Volume/Liquidity: Binance is 3-5x larger. Tokens: Binance has more. Fees: Very similar after discounts. App: OKX is cleaner; Binance is more feature-rich. C2C: Binance more active. Futures: OKX's strong suit; Binance has more volume. Earn/Ecosystem: Binance far ahead. Web3: OKX's built-in wallet is excellent. Security: Both solid; Binance has SAFU fund.
Verdict: Binance for comprehensive needs. OKX for clean UX and Web3. Many use both.