Thanks to the latest Tizen OS and a 1 GHz dual-core processor optimized for wearables, the Samsung Gear S2 performs tasks easily and efficiently. You stay constantly in touch via notifications (calendars, e-mails, news flashes, etc.) which you can check by glancing at your wrist. And because the Gear S2 is equipped with 3G connectivity and is the first wearable with its own e-SIM, you can send messages wherever and whenever you want, even if your smartphone is not close by. To connect the Samsung Gear S2 with your smartphone, you need the Gear Manager App from Google Play Store. The Samsung Gear S2 is compatible with all Android devices on the market (from Android 4.4 minimum 1.5 GB RAM memory).