Brand new WISME WS-X21 sealed + 10 straps + Wireless/Magnetic charger Suitable for Android & iOS The WISME WS-X21 is a budget-friendly, Apple Watch-style smartwatch known primarily for coming as a bundle with 10 interchangeable straps. Core functionalities: - Heart Rate Sensor - Blood Oxygen (SpO2) Sensor: - Pedometer / G-Sensor - Sleep Monitor - Bluetooth Calling + Features an integrated microphone and speaker - Large 2.02-inch HD Display: vivid responsive touchscreen - Smart Notifications - Multi-Sport Modes - IP67 Water Resistance (not recommended for swimming or hot showers) - Extended Battery Life up to 10 days