Apple Watch Series 7
41mm or 45mm case; over 50 percent more screen area⁵ Always-On Retina LTPO OLED display, 1,000 nits Ion-X glass display on aluminum cases Sapphire crystal display on stainless steel and titanium cases GPS and GPS + Cellular models S7 SiP with 64-bit dual-core processor W3 wireless chip U1 chip (Ultra Wideband)⁶ Digital Crown with haptic feedback Blood oxygen sensor Electrical heart sensor and third-generation optical heart sensor High and low heart rate notifications Irregular heart rhythm notification ECG app³ International emergency calling⁷ Emergency SOS⁸ Fall detection Swimproof (water resistant 50 meters)¹ Dust resistant (IP6X) Most crack-resistant front crystal LTE and UMTS⁹ Wi-Fi Bluetooth 5.0 GPS/GNSS Compass Always-on altimeter 32GB capacity Faster charge time²