✅ Bluetooth Calling & Notifications – Stay Connected 24/7 Built-in microphone and speaker let you answer/make calls directly from the watch via the "Da Fit" app. Sync SMS, social media alerts (WhatsApp, Facebook, etc.) in real time—never miss important updates during workouts or busy days. ✅ 1.46" HD Touchscreen with DIY Watch Faces Crisp IPS display offers vibrant visuals even in bright sunlight. Customize watch faces with your photos, color schemes, or data layouts to match your style—perfect for workouts, business, or casual wear. ✅ 24/7 Health Tracking – Monitor Heart Rate, Sleep & More Advanced optical sensor tracks real-time heart rate, blood oxygen (SpO₂), stress levels, and sleep stages (deep/light/REM). The app generates detailed reports for analyzing trends and optimizing your wellness routine. (Note: Not a medical device.) ✅ 120+ Sports Modes – Your Professional Fitness Companion Track running, swimming (IP68 waterproof), cycling, hiking, basketball, yoga, and more. Records steps, calories, distance, and GPS routes (when paired with phone). Auto-detects workouts and provides post-exercise recovery insights. ✅ IP68 Waterproof & Military-Grade Durability Withstands 1.5m water immersion for 30 minutes—ideal for swimming, showering, or sweaty workouts. Rugged aluminum case and scratch-resistant glass ensure long-lasting use in tough environments. Military Smart Watch for Men, 1.46" HD Fitness Tracker Smartwatch with Answer/Make Call, Sport Watch with Compatible with iPhone and Android Phones