Top Five Wearable Vendors Market Share 2015 by "Unit Shipments"

1. FitBit: 26.9% - 21.0 Million units
2. Xiaomi: 15.4% - 12.0 Million units 3. Apple: 14.9% - 11.6 Million units 4. Garmin: 4.2% - 3.3 Million units 5. Samsung: 4.0% - 3.1 Million units Others: 34.5% - 34.5 Million units

Source: IDC Worldwide Quarterly Wearable Device Tracker, February 23, 2016