The big round boss
A proper physical dial you can find by feel with gloves, low vision, cold hands, or less than perfect movement
Arc Band is a wearable control strap built around one big friendly rotating dial. Twist for volume. Press for commands. Hold for the important stuff. No menu diving and no frozen fingertips
A proper physical dial you can find by feel with gloves, low vision, cold hands, or less than perfect movement
Map turns, presses, double presses, and holds to volume, splits, navigation nudges, SOS, check-ins, or app shortcuts
Hear pace notes, split times, confirmations, and app updates without stopping to stare at a glowing rectangle
Rain, snow, speed, sleeves, gloves, shaky hands, tired legs. Arc Band starts where normal phone control gets a bit silly

A visual pause for the simple point: Arc Band is for the moments when touchscreens stop being helpful and your hands have better things to do.
Running, cycling, skiing, work gloves, outdoor kit, accessibility needs. Different worlds. Same problem. The phone can do the job. The screen is often the awkward bit
Piranha Works is a UK product studio for practical tech with a bit of bite. Arc Band is exactly our kind of thing: useful, tactile, slightly unusual, and built for people who need control that behaves in the real world.
Arc Band is the hardware. The companion app is the mischief panel. Pick what a twist, press, double press, or long hold should do, then let the phone and earbuds handle the confirmation.

We are shaping Arc Band like a proper product and not a gadget with a strap stapled on. Big dial. Clear feel. Tough use cases. Enough charm to make people want to back it



Twist for volume. Press for a prompt. Hold for a check in. No frozen screen ballet.

Split times, pace nudges, and confirmations in your ears while your legs do the committee work.

Phone control that does not ask you to stop watching the road, trail, or traffic.

A large tactile landmark for low vision, tremor, reduced dexterity, or limited movement.

Twist for volume. Press for a prompt. Hold for a check in. No frozen screen ballet.

Split times, pace nudges, and confirmations in your ears while your legs do the committee work.

Phone control that does not ask you to stop watching the road, trail, or traffic.

A large tactile landmark for low vision, tremor, reduced dexterity, or limited movement.

Twist for volume. Press for a prompt. Hold for a check in. No frozen screen ballet

Split times pace nudges and confirmations in your ears while your legs do the committee work

Phone control that does not ask you to stop watching the road trail or traffic

A large tactile landmark for low vision tremor reduced dexterity or limited movement
Arc Band is made for real world fiddly moments so early feedback matters. The plan is a Kickstarter launch with clear prototype milestones honest updates and a community helping decide which dial actions deserve first dibs