Garmin vivofit 3 wristband activity tracker, Black color, Housing material: Plastic. Display resolution: 64 x 64 pixels. Battery life: 365 days, Battery type: CR1632. Weight: 0.917 oz (26 g)<br><br><ul><li>Recommended use<b>:</b> Activity Tracking</li><li>Display resolution<b>:</b> 64 x 64 pixels</li><li>Unit dimensions<b>:</b> Wrist size range: 5.39" - 7.68" (137mm - 195mm)</li><li>Weight<b>:</b> 26g</li><li>Water resistant<b>:</b> Yes, 5 ATM (50M)</li><li>Colour<b>:</b> Black</li><li>Battery<b>:</b> 1x CR1632, battery life up to 1 year</li><li>Warranty<b>:</b> 1 years manufacturers warranty</li></ul>