24/7 Health Guardian: Professional Monitoring & Sleep Optimization Track heart rate every 5 minutes, blood oxygen (SpO₂), and sleep patterns 24/7 with accuracy. Features altitude-ready SpO₂ alerts for climbers/athletes and female-friendly menstrual cycle tracking. Develop healthier habits with detailed sleep analysis and personalized insights. | Instant Bluetooth Calling & Smart Notifications: Make/receive calls in 1 tap, reply to texts via pre-set messages (Android-exclusive,keywords reply template), and never miss alerts from WhatsApp, Facebook, SMS, and more. iOS users get notifications but cannot reply directly. | 100+ Custom Styles & Global Accessibility: Personalize your 1.83" HD screen with 100+ dynamic watch faces or DIY photo dials. Supports 19 languages and sleek unisex design, blending fitness tech with everyday fashion. | 10-Day Battery & Cross-Platform Compatibility: Optimized 300mAh battery lasts 7-10 days (30 days standby). Works seamlessly with iOS 10.0+ and Android 6.0+, ensuring universal connectivity without charging hassles.IP68 Waterproof, slight water splash in daily wear is not harmful, can not wear bathing/swimming. | AI-Powered Convenience & Proactive Wellness: Control music, check weather, and manage tasks via voice commands. Pre-set silent replies ("Meetings On") for discreet communication. Combines smart lifestyle tools with athlete-grade health tracking. | Worry-Free 12-Month Warranty & Dedicated Support: Your DiVElink smartwatch is backed by an industry-leading 12-month warranty for a risk-free purchase. We prioritize your satisfaction with 24/7 customer service—contact us anytime via email or live chat for instant troubleshooting, returns, or feedback. Enjoy lifetime software upgrades to keep your device future-ready, ensuring long-term value and peace of mind.