It is easier for someone to be self-confident when they have high self-esteem, relating to how they feel about themselves. Low self-esteem insinuates that your confidence levels are probably low because you don’t believe in yourself.
However, some people have low self-esteem but are still confident in their abilities to achieve. While others know they deserve better and are motivated towards positive outcomes but don’t believe they will achieve their goals. This is having high self-esteem while having low self-confidence.