Samsung Gear S3 Bluetooth is a companion device for compatible Android smartphones. Full connectivity functionality requires Bluetooth pairing to a wireless network-connected phone. The Gear S3 is Bluetooth connected, so you can receive texts, emails, and alerts without reaching for your phone. With a built-in speaker and microphone, you can also make and answer calls hands-free. Pack light for your next adventure. With Samsung Pay on your Gear S3, you can easily make payments with your watch almost anywhere you can swipe or tap a credit card"even without your phone or wallet.