Peloton Personal Area Network#

A reference document describing the connected device ecosystem used while riding the Peloton Bike+.

Network Diagram#

graph TB
    subgraph Bike["🏠 Peloton Bike+"]
        Peloton["Peloton Bike+"]
    end

    subgraph Wrist["Wrist"]
        Watch["Apple Watch Ultra 1"]
    end

    Internet["Peloton Cloud"]

    Peloton -- "GymKit  ·  Cadence, Output, Calories" --> Watch
    Watch   -- "GymKit  ·  Heart Rate"                --> Peloton
    Peloton -- "Wi-Fi"                                   --> Internet

Components#

Peloton Bike+#

The bike. 24-inch rotating touchscreen, belt drive, magnetic resistance with auto-follow, and GymKit integration for direct Apple Watch connectivity. Streams live and on-demand classes over Wi-Fi.

Apple Watch Ultra 1#

Connects directly to the Peloton Bike+ via GymKit — no bridge device required. Receives cadence, output (watts), calories, and distance from the bike; sends heart rate back to the bike’s display.

Protocol Summary#

Data Flow Summary#

Peloton Bike+ ──GymKit (BLE)──► Apple Watch Ultra 1
    ▲                                    │
    └── Heart Rate (GymKit) ────────────┘

Peloton Bike+ ──Wi-Fi──► Peloton Cloud (classes, leaderboard, workout upload)

Key Difference from Outdoor Bikes#

On the Canyon Grizl CF 8 Di2 and Transition Relay Alloy PNW, the Watchlink bridges ANT+ sensor data to the Watch because ANT+ sensors are universal but the Watch has no ANT+ radio. The Peloton eliminates this entirely — GymKit is a direct, native connection with no intermediate hardware. The Watch receives richer, more accurate data (from the bike’s calibrated power system) with fewer moving parts.