LTE: 1.5GB RAM + 4GB Internal Memory
Bluetooth: 768MB RAM + 4GB Internal Memory

CompatibilitySamsung, other Android: Android 5.0 or higher & RAM 1.5GB above
iPhone: iPhone 5 and above, iOS 9.0 or above

*Activation feature for Mobile Network of Galaxy Watch with
Non-Samsung smartphones may not be available in some countries.

Watch Galaxy Black- Samsung