Looking for a new personal satellite messenger? Our wilderness communication experts have tested more than two dozen over almost a decade. For this 2023 iteration, we bought, tested, and assessed the top 11 messengers available today and put them through a rigorous side-by-side comparison to find the very best. Our testing protocol includes real-world usage complemented by a full suite of formalized investigations. Our expert picks can help you find the perfect personal locator beacon for your needs and budget.