Best Buy: Apple Watch Nike Series 6 (GPS + Cellular) 44mm Space Gray Aluminum Case with Anthracite/Black Nike Sport Band Space Gray (Verizon) MG2J3LL/A
NIKE+ fuelband SE and NIKE+ fuelband app
Nike+ FuelBand - Wikipedia
Nike+ FuelBand iPhone app adds HealthKit integration, no longer requires a band - 9to5Mac
Nike finally introduces a Fuelband app for Android | Engadget