GPS & Tracking

Polar V800

Apple Watch Nike+

Apple Watch Series 1

Fitbit Flex 2

Garmin Vivofit 4

Motorola Moto 360 (1st gen.)

Polar M430

Suunto Ambit3 Peak

Casio Pro Trek F20

Epson Runsense SF-510

TomTom Spark 3

Withings Activite Steel