Do I need a brushless cordless circular saw?

Across the reviewers we read, brushless models (like the Makita XSH03Z and DeWalt DCS565B/DCS590B) consistently deliver more cuts per charge, run quieter, and last longer than brushed equivalents. Brushed saws such as the Makita XSS02Z and DeWalt DCS391B remain capable and cost less, but multiple specialist-community threads note they bog down faster under load and on smaller batteries.