This activity tracker gives you several functions to keep track of different key metrics during the workout. This model has an OLED (AMOLED) screen.
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OPPO Band (1.1 inch AMOLED Screen, SpO2 Monitoring, Heart Rate Monitoring, 50m Water Resistance, 12 Workout Modes) - Black
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Activity Bangle Oppo Band Sport Black 1,1" 100 mAh 5 atm Black
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Activity Bangle Oppo Band Sport Black 1,1" 100 mAh 5 atm Black