This is a newsmart watch WS-77 Max A combination Air31 pod 3strap band • Making & Answer Calls via Bluetooth v5.2 • 2.02 inch Touch Screen, Smart split screen • Rugged Design - Quick Action button Customizable • 5 Days Battery Life, Wireless Charging • 7 Watch Faces, 4 Menu Style • Build-in Local Games • Power Saving Mode, Always On Display • Heart Rate & Blood Pressure Monitor • Wallet Function & Business Cards • Multifunction NFC, Voice Assistant • Location Sharing, Tiktok Remote Control • Multi-Sport Modes • IP67 Waterproof Up to 1000 nits brightness lon-x glass display on aluminum cases Sapphire crystal display on stainless steel cases Digital Crown with haptic feedback Accelerometer High-dynamic-range gyroscope Temperature sensing? Blood oxygen sensor and app3 Electrical heart sensor and ECG app4 Third-generation optical