Smart Watch case Material: Zinc Alloy watch Size(mm): 44.5*38.5*11.5 strap: 44mm Changeable Fruit Straps button: Double Button chipset: Mtk2502d screen Size: 1.75 Inch resolution: 320*385 touch Screen: 2.5d Curved Capacitive Full Touch Screen bluetooth Version: Bt3.0+4.0 battery: 200mah LargE-Capacity Lithium Polymer Battery charger: Wireless Charging app: Rdfit watch Menu Languages: English, French, Spanish, Italian,turkish, Russian, Arabic, Persian. neckband item Type: Headphone brand: Lenovo model: He05 bluetooth Version: 5.0 colour: Black White Red playing Time: Max.8h waiting Time: Up To 120h speaker Diameter: 10mm frequency Range: 20-20khz connection Distance: 10m (barrieR-Free) sensitivity: 108db±3db package Weight: 135g/4.76oz packing Size: 220*165*31mm/8.66*6.49*1.18 Inches