JOB 003/004
GB-PRINT 4.0 · GARRETT WHISTEN
BellSix
An interval training clock for gym walls, phones and wrists.
- ROLE
- Product Design Engineer
- AT
- BellSix
- WHEN
- 2026-now
- WITH
- React, TypeScript, SwiftUI, Supabase
- 1timing engine
- 3platforms: web, iPhone, Watch
> THE PROBLEM
I wanted a decent interval clock for my own training. The options were a $300 LED wall unit or an app that buried the timer three taps deep. So I built the one I wanted, then kept going.
> WHAT I DID
- Wrote a drift-proof timer engine that web, iPhone and Apple Watch all share.
- Designed a brutalist brand: black field, chalk-white type, one electric accent per screen.
- Built one design token pipeline that drives both web and native.
- Built Gym Control, which casts the clock to any screen and runs it from a phone or watch.
> WHAT CHANGED
- The web app is live at bellsix.com. The native apps are in TestFlight.