General Specifications Brand Apple Model Number A2775 (GPS), A2776 (GPS + Cellular) Series Apple Watch SE Gender Unisex Display Type Retina LTPO OLED, always-on display Dial Shape Rectangular Physical Specifications Dial Color Silver, Space Gray, Midnight, Starlight Strap Material Silicone, Braided Nylon, Leather Strap Color Various (Black, White, Blue, Red, Pink, etc.) Case Material Aluminum Case Diameter 40mm, 44mm Case Thickness 10.7 mm Water Resistance Depth 50 meters (WR50) Technical Specifications Movement Type Not applicable (digital movement) Power Source Rechargeable Lithium-ion battery Battery Life Up to 18 hours of usage Connectivity Bluetooth 5.0, Wi-Fi, optional GPS + Cellular Compatible OS iOS 16 or later Features Alarm Function Yes (vibration, sound alerts) Stopwatch Yes Timer Yes Calendar Yes (integrated with iPhone) Illuminated Display Yes (Always-on Retina display) Heart Rate Monitor Yes (optical heart sensor) GPS Yes (GPS + GLONASS, Galileo, QZSS) Fitness Tracking Features Activity rings, Workout tracking, Sleep tracking Dimensions and Weight Strap Length 130-200 mm (40mm), 140-220 mm (44mm) Strap Width 20mm (40mm case), 22mm (44mm case) Weight (grams) 26.4 grams (40mm), 36.4 grams (44mm) Additional Information Warranty Period 1-year limited warranty Included Accessories Apple Watch SE, Magnetic charging cable, Quick start guide Special Features Fall Detection, Emergency SOS, Family Setup, Noise monitoring, Retina display with Force Touch