The Angel

The Gem

An 18mm flat cabochon that looks like a precious gemstone and works like a personal witness. Visible gold circuitry under rose-cut facets. Body-heat powered. Magnetically mounted. No charging, no clips, no clasps. Just snap and go.

The Gem — flat cabochon sensor module
Gem exploded view

Inside the crystal

What's Inside

CMOS camera, BLE 5.4 radio, gold-trace flex PCB, RGB LED indicator, piezo transducer, N52 neodymium magnet ring, and inductive charging coil — all fully encapsulated in optically clear UV-cure resin with faceted rose-cut geometry. No exposed contacts. No seams. No screws.

The manufacturing process uses the device's own internal piezoelectric transducer to perform ultrasonic degassing during resin curing — a patented technique that produces gemstone-grade optical clarity.

Specifications

Technical Details

18mm

Diameter

(8mm Temple variant)

3–4mm

Thickness

Flat cabochon profile

1080p

Camera

OV2640 CMOS

BLE 5.4

Connectivity

G2G mesh protocol

Body heat

Power

TEG + inductive

Magnetic

Mount

2–4N retention, pinless

UV resin

Encapsulation

RI 1.50–1.55, waterproof

$12–18

BOM (10K)

Standard Gem

Design variants

Crystal. Stealth. Sport.

Three design variants, one architecture. Crystal is transparent with visible gold traces — the signature look. Stealth is matte black for covert carry. Sport is ruggedized with high-visibility housing for outdoor and tactical use.

All three share identical internals. The Gem is the Gem — only the shell changes.

Three Gem color variants

Magnetic ecosystem

One Gem. Many Mounts.

Snap the Gem onto any mount magnetically. No pogo pins, no clips. Every mount charges the Gem through inductive coupling. Some harvest body heat. Some collect DNA. All of them look like jewelry.

Necklace Pendant

Necklace Pendant

Classic chain mount — the default carry

Bio Tape Band

Bio Tape Band

Thermoelectric wristband — HR, temp, stress + glow

Slap Band

Slap Band

Spring-steel snap bracelet with dual cameras

Tactical Paracord

Tactical Paracord

Survival band — rugged, field-ready

Scarab

Scarab

Magnetic scarab brooch — collar, lapel, bag

Kinesio Strips

Kinesio Strips

3-pack adhesive strips — TEG power harvesting

Silver Choker

Silver Choker

Throat mount — sternum TEG, pulse monitoring

The Dot

The Dot

8mm magnetic mount — the most covert carry

Spider / Ajna

Spider / Ajna

Dot forehead mount — 8-channel EEG neural mesh

Butterfly

Butterfly

Translucent wing pendant — dormant Mantis form

Henna Tape

Henna Tape

Decorative wrist tape — embedded flex circuits

Thermoelectric layer stack

7 patented architectures

Powered by You

Seven distinct thermoelectric generator architectures — from doped graphene/h-BN superlattices to M13 bacteriophage bio-hybrid generators — covered by 30 patent claims. The system harvests electrical energy from the temperature differential between your skin and ambient air.

The same traces that generate power also sense your biometrics: heart rate, skin temperature, galvanic skin response, respiration rate, and blood oxygen. Dual-purpose by design.

The Angel watches over you.

But sometimes you need something with teeth.

Meet the Mantis