Is BitMart like Coinbase?

Could you elaborate on the similarities and differences between BitMart and Coinbase? Are they both cryptocurrency exchanges, and if so, how do they compare in terms of security, fees, supported cryptocurrencies, and user experience? Additionally, are there any unique features or services offered by either platform that sets them apart from the competition? Understanding these aspects would help me determine if BitMart is indeed similar to Coinbase or if they cater to different needs and audiences.