AirPods 2nd gen are not highly recommended for gym use. The open-ear design may not stay securely in your ear, and they are not officially IP-rated for protection against sweat. AirPods Pro are IPX4 sweat/water resistant and secure in the ear, Pro is the recommended model for fitness.
AirPods are not recommended for sleep. The earbud style without soft silicone tips is not comfortable to lie on, and they are quite likely to fall out during the night. AirPods Pro would work better for this, but the stem style is easy to displace on a pillow or bedding. We recommend looking at purpose-built products for sleep, like SleepPhones or the Bose SleepBuds.
Hi there, it will pair with Samsung devices, however the touch controls and other functions of an AirPods are limited for Android phones. Double tapping will still pause/play the music but the other functions may not work.