Red muscle fibres are dark red due to the presence of myoglobin. They have large amount of mitochondria whereas, the white muscle fibres have low amount of mitochondria and myoglobin. 

Red muscle fibres have thin fibres which allows them to contract slowly whereas, white muscle fibres have thick fibres which make them to contract fast. 

Red muscle fibres are also called type I muscles or slow twitch muscles whereas, white muscle fibres are called type II muscles or fast twitch muscles. 

Red muscle fibres are highly resistant to fatigue whereas, muscles can easily get fatigue.

Red muscles obtain energy from aerobic metabolism whereas, white muscle fibres obtain energy from anaerobic metabolism.

Red muscle fibres have slow conduction due ti low myosin ATPase activity whereas, white muscle fibres have fast conduction due to high myosin ATPase activity.