Bank-issued smart wearable-enabled payment ecosystem custom-designed for micropayments at zero cost to the end consumer. Banks buy Coil devices in bulk and issue them as substitutes for physical cards. Coil is creating an Android-like ecosystem of MicroApps for Coil wearables. CoilOne device is also a smartwatch that allows a user to answer calls, see messages, fitness tracking, different apps,... it is a perfect solution to connect the younger generation to modern banking.