SYS‑2026 · Concept study · Not a shipping product
A wrist-mounted field terminal with its own radio, its own maps, its own sensors and its own power. No cell tower. No account. No monthly fee. It is a computer you can service with a 2 mm hex key.
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00 / Power on
No account to sign into, no pairing, no waiting on a handshake with a server that may not answer. It checks its own hardware, tells you what it found, and hands you the screen.
The sequence below runs by itself the moment it reaches you, at the speed the hardware would actually take.
01 / Hardware
01
3.5″ monochrome · 640 × 480 · no backlight required
The brighter it gets outside, the more readable it becomes — it reflects sunlight instead of fighting it. Holding a static screen costs about 40 µA, which is why standby is measured in days.
02
Halogen-quenched Geiger–Müller tube · 0.01–1000 µSv/h
A real glass tube, not an estimate from a chip. It clicks because a particle actually hit it. Dose rate, accumulated dose, and a rate alarm you set yourself.
03
Multi-band GNSS · 3-axis magnetometer · barometric altimeter
Vector maps live on the cartridge, so position, heading and altitude never touch a server. It knows where you are in a canyon with no signal because nothing about it needed signal.
04
Sub-GHz mesh transceiver · 150 kHz–1.7 GHz receiver
Short text and position hops unit to unit — up to 12 km line of sight, further through the mesh. Separately, a receive-only tuner for emergency broadcast, marine, air band and shortwave.
05
Reflective PPG · SpO₂ · skin temperature
Pressed against the underside of the forearm, where the signal is cleaner than at the wrist bone. Heart rate, oxygen saturation and core-temperature drift — logged locally, uploaded nowhere.
06
microSD in a machined aluminium shell · hot-swappable
Maps, logs, waveforms, firmware. Eject it with a gloved thumb and hand it to somebody. That is the entire sync protocol, and it works in a blackout.
02 / The interface
This is the actual screen, running in your browser. Turn the dial, flip a switch, or use your arrow keys — the terminal responds the same way the hardware would.
0.11
µSv/h · BACKGROUND
4 units in range · 868 MHz · last hop 2.1 km
162.550
MHz · VHF WX
Cartridge A · 61.4 GB free · safe to eject
SYS-2026 · UNIT 001 · ASSY 06
Dial drag or scroll it ← → step through modes Switches power, backlight, phosphor
Why it works like this
Radiation is the one number that has to be readable at arm’s length, so it gets the whole top half of the screen and nothing else competes with it.
Mode: RAD.
03 / Construction
Twenty-two parts. Nine of them user-replaceable with a hex key that ships in the strap. Nothing is glued, and nothing is paired to a serial number.
A 1.9 mm minimum wall, cerakote over hard anodising, and chamfers wide enough to take a drop on the corner without deforming the seal groove. It is heavier than it needs to be, deliberately.
A single captive O‑ring in a machined channel means one thing to inspect and one thing to replace. Sealed to IP68 at two metres for an hour, and it still opens with a hex key.
An 11 600 mAh pack that lifts out in one piece — forty hours of mixed use, nine days idle, and roughly three weeks if you leave it on the detector alone.
Display, glass, battery, strap, dial and cartridge door are all separate line items. No adhesive, no proprietary driver, no board-level pairing.
04 / Honesty
The fun of a wrist computer is imagining it does everything. Most of this one is off-the-shelf engineering that already exists. Some of it is not, and pretending otherwise would be the cheap way out.
And the honest disclosure: SYS‑2026 does not exist. This page is a website template built to show what a product launch can feel like — the photography is generated, the figures are invented but internally consistent, and the reserve form below takes no money and sends nothing anywhere.
05 / In use
The map is on the cartridge. The heading comes from a magnetometer. The message to the other unit goes out at 868 MHz whether or not a single tower is standing.
06 / Specification
| Panel | 3.5″ transflective monochrome, 640 × 480, 60 Hz |
|---|---|
| Cover | 2.4 mm chemically strengthened glass, replaceable |
| Illumination | Edge-lit, 5 levels, red-safe at level 1 |
| Controls | Detented rotary dial, 3 sealed toggles, 1 recessed reset |
| Radiation | Halogen-quenched GM tube, 0.01–1000 µSv/h, ±15% |
|---|---|
| Position | Multi-band GNSS, 1.4 m CEP typical, cold fix < 28 s |
| Heading | 3-axis magnetometer, tilt compensated, ±2° |
| Altitude | Barometric, ±1 m relative |
| Biometrics | Reflective PPG, SpO₂, skin temperature ±0.2 °C |
| Mesh | 868 / 915 MHz, +22 dBm, 12 km line of sight |
|---|---|
| Receiver | 150 kHz – 1.7 GHz, AM / FM / SSB, receive only |
| Short range | BLE 5.4 for firmware only, off by default |
| Cell | 11 600 mAh Li-ion, user-replaceable, USB-C 30 W |
|---|---|
| Runtime | 40 h mixed · 9 days standby · 21 days detector only |
| Chassis | 6082-T6 aluminium, hard anodised + cerakote |
| Sealing | IP68, 2 m for 1 h, single captive O-ring |
| Dimensions | 132 × 94 × 28.4 mm |
| Mass | 486 g with strap and cartridge |
| Storage | 64 or 256 GB machined cartridge, hot-swappable |
07 / Configure
Configure your terminal. Every option updates the total as you go.
08 / Questions
Because a transflective panel gets more readable in bright sun and costs almost nothing to hold an image. A colour screen would halve the runtime and be harder to read on a glacier.
Everything except the mesh keeps working, and the mesh only needs another unit, not a tower. Maps, detection, navigation and logging never had a network dependency to lose.
There is nowhere to send it. Logs live on a cartridge you can pull out with a gloved thumb. Bluetooth exists for firmware and is off unless you flip it on.
It is. That is the cost of a metal case, a replaceable cell and a glass detector tube. A lighter version of this device would be a different, more disposable device.
In the fiction: survey crews, back-country guides and anyone whose job continues after the infrastructure stops. In reality: a design study about what that product would look like.
Where the idea came from.
The wrist-mounted terminal in the Fallout games and series — the Pip‑Boy — is the reference for the concept: one rugged instrument on your forearm that replaces a dozen separate tools.
SYS‑2026 is an original design, not a reproduction. The device, the brand, the artwork and the interface here were all made for this template, and it is not affiliated with or endorsed by Bethesda Softworks or Amazon Studios.
