Centralized vs Decentralized Exchanges: Which to Choose

Three Types of Exchanges: Brief Introduction

When you need to exchange cryptocurrency, you have three fundamentally different options: a centralized exchange (CEX), a decentralized exchange (DEX), and an online exchanger. Each tool is designed for different tasks and users.

Detailed Comparison

Criteria	CEX (Binance, Bybit)	DEX (Uniswap, dYdX)	Exchanger (Flash Exchange)
KYC required	Yes	No	No (small amounts)
Fiat withdrawal speed	1–5 days	Not possible	15–40 minutes
Fiat support (RUB, EUR)	Limited	None	Yes, core function

Who Should Use What

• CEX: active traders, margin trading, futures, access to hundreds of pairs
• DEX: DeFi users, liquidity providers, trading non-listed tokens
• Exchanger: fast fiat conversion without registration or KYC for small amounts

Combined Strategy

• Long-term storage — hardware wallet
• Trading and coin swaps — CEX or DEX
• Fiat withdrawal and cash operations — Flash Exchange