Xiaomi Mi Band 2 Heart Rate Monitor Smart Watch Black

Amazfit Bip, 3.25 cm (1.28"), Touchscreen, GPS (satellite), 18 g, Black

Fitness Tracker Activity Tracker with Wrist Based Heart Rate Monitor Purple

Xiaomi Mi Band 3, Wristband activity tracker, Black, Plastic, Black, Elastomer, 155 - 216 mm

Amazfit Stratos, 3.4 cm (1.34"), LCD, Touchscreen, GPS (satellite), 70 g, Black

Elari FixiTime 3, 7.62 cm (3"), IPS, GPS (satellite), Cellular, 47 g, Pink

Elari FixiTime 3, 7.62 cm (3"), IPS, GPS (satellite), Cellular, 47 g, Black

Samsung SM-R810, 3.05 cm (1.2"), SAMOLED, Touchscreen, GPS (satellite), 49 g, Black