For mobile phone conditions supported by Samsung Gear S3:
1. Samsung Smartphone: You need to support Android version 4.3 or above and have memory of 1.5GB or above to connect Samsung Gear S3 Pioneer Edition/Classic Edition.
2. Non-Samsung smart phones: support Android models with running memory 1.5GB or above and system version 4.4 or above; And iPhone 5 and newer models with system version iSO 9.0 and above. (The system is running iOS 10 and newer versions of iPhone 6S and 6s+, and the connection with Gear S3 may be unstable).