Redmi Smart Watch 4 Obsidian Black

Operating system: watchOS
Memory storage capacity: 128 GB
Special features: Activity Tracker
Battery capacity: 470 Milliamp Hours
Connectivity technology: Bluetooth

Ultra large 1.97″ AMOLED display - 60Hz refresh rate
Exquisite aluminium alloy frame - Rotating crown / Quick release strap
Long battery life - Up to 20 days (Without Always on Display)
Supports BT Calling
Advanced health and workout tracking - Versatile analysis of heart rate, SpO₂, sleep, and more