Gemini has lower transaction fees than Coinbase, but the difference is small, and the fee structures are similar. You can expect to pay 0.40% or less on Gemini and 0.60% or less on Coinbase if you stick to their most affordable trading options.
Trading fees on Gemini's default interface and Coinbase's simple trade tool are very similar. Smaller trades (under $200) are charged a flat fee ranging from $0.99 to $2.99, depending on the exact order size. On Gemini, larger trades incur a variable percentage fee of 1.49%. Coinbase's website does not provide an exact amount, but its percentage fee is roughly the same.
Coinbase has a larger selection of cryptocurrencies than Gemini, but neither exchange falls short in this regard. Coinbase offers over 200 cryptocurrencies for trading, while Gemini offers over 90 cryptocurrencies.

Gemini and Coinbase are two of the most prominent cryptocurrency exchanges, catering to both novice and experienced investors. Founded by the Winklevoss twins in 2014, Gemini emphasizes security and regulatory compliance, offering features like insurance for digital assets and a strong regulatory framework. It supports a wide range of cryptocurrencies and provides robust tools for trading and earning interest on holdings.

Coinbase, established in 2012, is known for its user-friendly interface, making it accessible for beginners. It offers a broad selection of cryptocurrencies and various services, including Coinbase Pro for advanced trading and Coinbase Wallet for secure storage. While Gemini focuses on regulatory adherence and institutional investors, Coinbase balances ease of use with a comprehensive suite of services, appealing to a broader audience.