Designed in Germany. Shipping worldwide.

MP-01 — APPLE WATCH ULTRA, RE-CASED

The Smallest Phone You Own.

Your Apple Watch Ultra already makes calls, sends messages, navigates and pays. The MP-01 takes it off your wrist and bolts it — six M3 screws, brass inserts, carbon-fiber nylon — into a pocketable mini phone. Everything you need. Nothing that feeds.

4 COLORWAYS 6 × M3 TORX 54 G STL FILES INCLUDED
The STELLFORM MP-01 Ultra Case in Carbon Black, Signal Orange, Olive Drab and Ghost Grey
FIG 1.0 — MP-01 / 4 COLORWAYS

FIELD MANUAL — 01

Leave the Phone.
Keep the Signal.

The average phone gets picked up 144 times a day. Almost none of those pickups are the call, the route or the payment — they are the feed. A cellular Apple Watch Ultra carries every function you actually leave the house for, with a screen too small to scroll and too honest to lie to you.

The MP-01 finishes the argument. Two carbon-nylon plates bolt the Ultra into a handheld the size of a matchbox: display framed flush, crown and action button free, speaker open, charging through the back. No clips that give up, no silicone that stretches. Six screws — it goes in a pocket, a pack lid, a chest rig.

The CAD is public — STL files ship on the product page.

MP-01 — Four Colorways

STELLFORM AT-02 Tag Case for Apple AirTag FIG 2.0 — AT-02

THE SIDE SHOW

AT-02 Tag Case.
The AirTag, Armored.

The AirTag, armored. Six bolts, an integrated lanyard slot, zero chance of popping out. Same chamfers, same bolts, same carbon-nylon as the MP-01 — scaled down to guard the thing that finds your things.

VIEW AT-02 19,00 €

Why It Holds

01 / PROCESS

CARBON-FILLED, NOT MOLDED

Printed in carbon-fiber-reinforced PA12 nylon. Geometries injection molding cannot reach, at stiffness-to-weight ratios silicone cases cannot dream of.

02 / TOLERANCE

±0.1 MM OR IT SHIPS AGAIN

Every batch is dimension-checked against CAD. The watch drops in with zero play and the plates close on it like a mold — bolted, never clipped.

03 / HARDWARE

BRASS INSERTS, STEEL BOLTS

M3 torx screws seat in brass threaded inserts, not raw plastic. Open it a hundred times; the threads will not care. Tested from −30 °C to +80 °C.

04 / ORIGIN

ENGINEERED IN GERMANY

Designed, printed and packed in our Berlin facility. Shipped worldwide with recyclable, plastic-free packaging.

The STELLFORM workshop: 3D printer, calipers and printed parts THE WORKSHOP — GERMANY

ABOUT — THE MAKER

Hi, I'm Filip.
Tinkerer. Maker.

No corporation — one workbench in Germany, ideas chased to the drawing board, and parcels shipped worldwide within 1–2 days. Feedback is always welcome.

MEET THE MAKER →