Operating system Zepp OS Memory storage capacity 32 GB Special features AI Assistance, GPS, Multisport Tracker, Notifications, Text Messaging Connectivity technology Bluetooth Wireless communication standard Bluetooth About this item Built for Performance and Style: The sleek aluminum body and 1.5" durable sapphire crystal glass screen of the Balance 2 smart watch offer a premium, resilient design, while dual speakers provide clear audio cues during training. Train Longer Without Interruptions: With up to 21 days of battery life under typical use, you can power through every workout, adventure, and routine with less time spent charging and more time focused on performance. Precision Meets Passion: Train across 170+ sports with advanced multisport tracking, including industry-first official HYROX training and competition modes, downloadable maps for 40,000 golf courses, and professional-grade SCUBA diving support. Industry-Leading GPS & Offline Maps: Balance 2 can accurately track your every move with dual-band support from six satellite systems for fast, reliable connection. You can also download free maps and get turn-by-turn directions. 24/7 Health Monitoring: Monitor your energy levels throughout the day while the advanced sensor and algorithms ensure precise, real-time monitoring of heart rate, sleep quality, blood-oxygen, and stress, plus recovery metrics like HRV. Pro-Grade Waterproofing: With military-grade endurance, 45m diving certification, and 10 ATM water-resistance, Balance 2 is with through deep dives, water workouts, and extreme temperatures and conditions. Cut Through the Noise: When Workout Mode is active, distracting notifications are silenced so you can stay focused. Need something mid-session? Zepp Flow voice assistance lets you check real time stats, start or pause activities, or access key features instantly.