Brand: Fitbit Material: Silicone Color: Black/Graphite Compatible Devices: Smartphones Screen Size: 0.96 Inches Item Dimensions LxWxH: 1.43 x 0.69 x 0.4 inches Item Weight: 26.17 Grams Battery Life: 5 days Sensor Type: Wearable Battery Description: Lithium-Ion See how jewelry gets smart with a...