Wandering Golf

Apple Watch

The watch is the sensor and the in-the-moment UI. The phone is the brain. We keep this split deliberate so each device does what it's actually good at.

What runs on the watch

  • GPS tracking and the breadcrumb trail
  • Shot tap (mark where you swung, mark where the ball ended up)
  • Live distance to pin, front, and back of green
  • Hole scorecard quick-edit (score, putts, FW, GIR, bunkers, penalties)
  • Round start, hole transitions, round end
  • Offline durability: every action queues durably even if Bluetooth drops

What stays on the phone

  • Round map and full-edit scorecard
  • AI post-round recap
  • Sync to the cloud (the phone is the only writer to the database)
  • Auth, account, billing
  • Course catalog, polygon overlays, hole framing

Why the watch is sensor-only by design

A lot of golf-watch apps try to do everything on the watch. They become slow, unreliable, and battery-killing. We took the opposite bet: the watch handles the things you'd actually do on a watch (read distance, tap a shot, glance at score) and offloads everything else to the phone. The phone is the only source of truth for your round; the watch is a high-fidelity input device.

Practical upshots: better battery life, faster syncing, no zombie rounds when things go wrong, and a clean architecture where the watch can crash and recover mid-round without losing data.

Pairing and reachability

The watch app installs automatically with the iPhone app via the Watch app on your phone. They communicate over Watch Connectivity (Bluetooth primary, WiFi fallback). When the watch is unreachable mid-round, both sides keep working independently and reconcile when they reconnect.

We don't require cellular on the watch. GPS-only watches work fine.

No swing-detection vibration

The watch will never haptic-buzz when it detects a swing. Even with full swing-detection running, we keep it silent. Your wrist is busy hitting golf shots; you don't need it vibrating in the middle of one. (We use other signals to verify the detector is firing correctly.)

Related