The Porodo Voyager Smart Watch, which is strong, rigid, yet combines perfectly with durability and technology. It features a 1.43-inch AMOLED display with crystal clear 466*466 resolution, hence making sure you see clearly in any condition. Crafted with a robust Zinc Alloy case, this smartwatch is sure to go through rugged conditions, therefore being the best to go along with your active lifestyle. Equipped with Bluetooth calling and a built-in compass, the Voyager will keep you connected and oriented no matter where you are. Built-In Compass Rugged Design Bluetooth Calling AMOLED Display Voyager Smart Watch Watch Case: Zinc Alloy Screen Size: 1.43" Screen Resolution: 466*466 Flash Memory: 128MB Battery Capacity: 400mAh Recharge Time: 4H Working Time: Up to 7 Days Compatibility: Android 5.0 and Above, IOS 10.0 and Above