If you want to keep track of your workout, a sport watch is a great choice. There are several strap colours to pick from.
From Amazon
COROS PACE 3 Sport Watch GPS, Lightweight and Comfort, 17 Days Battery Life, Dual-Frequency GPS, Heart Rate, Navigation, Sleep Track, Training Plan, Run, Bike, and Ski-Black Nylon
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Smartwatch Coros WPACE3-WHT-N
Shopaide
Smartwatch Coros WPACE3-WHT-N