Polished obsidian shell. Engraved pulse mark.

Health Hack Script Ring

A single piece of polished black ceramic-coated titanium with the Health Hack pulse cut into the outer face. Domed profile, no edges to catch, 4 grams on the finger. The full ECG and HRV stack sits inside the inner shell, so it reads all night without a screen or a charge cradle on your nightstand.