Is Frontier X2 Chest Strap Accurate? Real User Reviews Needed

Hi guys,

I’m thinking about buying the Frontier X2 Heart Rate Monitor (chest strap) for workouts and tracking fitness, but I want some real user feedback first.

Has anyone used it? How accurate is the heart rate tracking and strain data? Are the vibration alerts actually helpful during workouts?

Also, is it comfortable for long use or annoying?

Would love to hear your experience before I buy. Thanks