This model from Samsung has many useful features. The strap comes in two colours; black and brown.
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Samsung Galaxy Watch Active2 4G LTE Stainless Steel 40 mm - Rose Gold (UK Version)
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Samsung Galaxy Watch Active2 4G SmartWatch | Rose Gold
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Samsung Galaxy Watch Active 2 3.02 cm (1.19") 40 mm SAMOLED 4G Black GPS (satellite)