  Vapor cells with antirelaxation coating are widely used in modern atomic
physics experiments due to the coating's ability to maintain the atoms' spin
polarization during wall collisions. We characterize the performance of vapor
cells with different coating materials by measuring longitudinal spin
relaxation and vapor density at temperatures up to 95{\deg}C. We found that the
spin-projection-noise-limited sensitivity for atomic magnetometers with such
cells improves with temperature, which demonstrates the potential of
antirelaxation coated cells in applications of future high-sensitivity
magnetometers.
