Smartwatch Digital Touchscreen OLED. 324 x 394 pixels 1000 cd/m². Water resistant Waterproof up to: 50 m. Built-in microphone Built-in speaker(s). Heart rate monitor Accelerometer Gyroscope Activity tracker Apple Siri. 4G GPS (satellite) GLONASS Galileo Quasi-Zenith Satellite System (QZSS). Wi-Fi Bluetooth 5.3 Near Field Communication (NFC). Built-in battery Lithium-Ion (Li-Ion) 18 h. A great deal to love.. Three stylish case colors. Powerful sensors for insights about your health and fitness. Innovative safety features. Convenient ways to stay connected.. A faster dual-core processor for added performance. Apple Watch SE is feature packed, and now it’s a better value than ever.. Display. Watch glass type. Ion-X glass. Rounded display corners. Yes. Display brightness. 1000 cd/m². Display technology. OLED. Touchscreen. Yes. Display resolution. 324 x 394 pixels. Display type. Digital. Performance. Fall detection. Yes. Crash detection. Yes. Wireless chipset. W3. 64-bit computing. Yes. Processor cores. 2. Processor model. S8. Processor manufacturer. Apple. Flash memory. 32 GB. Operating system installed. watchOS 9. Mobile operating systems supported. iOS. FM radio. No. Built-in camera. No. Built-in speaker(s). Yes. Built-in microphone. Yes. Design. Waterproof up to. 50 m. Magnetic charging connector. Yes. Protection features. Water resistant. Waterproof. Yes. Back material. Nylon, Sapphire glass. Shape. Rectangular. Band material. Not applicable. Band colour. Not applicable. Watch case material. Aluminium. Watch case colour. Black. Watch case size. 44 mm. Market positioning. Smartwatch. Features. Altimeter. Yes. Haptic feedback. Yes. Virtual assistant. Apple Siri. E-mail. Yes. Electronic compass. Yes. Audible alarm(s). Yes. Ambient light sensor. Yes. SOS alert function. Yes. Short Message Service (SMS). Yes. Activity tracker. Yes. Gyroscope. Yes. Accelerometer. Yes. Heart rate sensor type. Optical. Heart rate monitor. Yes. Network. Quasi-Zenith Satellite System (QZSS). Yes. Galileo. Yes. GLONASS. Yes. GPS (satellite). Yes. 4G standard. LTE. 3G standards. UMTS. Mobile network generation. 4G. Mobile network connection. Yes. Ports & interfaces. Headphone connectivity. Bluetooth. Near Field Communication (NFC). Yes. Bluetooth version. 5.3. Bluetooth. Yes. Wi-Fi standards. 802.11b, 802.11g, Wi-Fi 4 (802.11n). Wi-Fi. Yes. USB port. No. Power. Wireless charging. Yes. Battery life (max). 18 h. Battery technology. Lithium-Ion (Li-Ion). Battery type. Built-in battery. General. Product family. Watch. Product series. SE (2nd generation). Weight & dimensions. Weight. 33 g. Thickness. 1.07 cm. Depth. 44 mm. Width. 38 mm. Sustainability. Doesn't contain. Arsenic, BFR, Beryllium, Mercury, PVC