Watch Series 5 40mm vs Watch Ultra 49mm

Unique specs for the Apple Watch Series 5 include an always-on Retina LTPO OLED display with a max brightness of 1000 nits, an S5 SiP with a 64-bit dual-core processor, a 2nd gen optical heart sensor, water-resistance to 50 meters, GPS/GNSS, Bluetooth 5.0, a barometric altimeter, and a built-in speaker and microphone.

The Apple Watch Ultra features a new case design with a flat sapphire crystal display, an Action Button, and support for fast charging using the Apple USB-C magnetic charging cable.

Additional specs for the Apple Watch Ultra include an always-on Retina LTPO OLED display with a max brightness of 2000 nits, an S8 SiP with a 64-bit dual-core processor, a U1 ultra-wideband chip, a temperature sensor, a blood oxygen sensor, a 3rd gen optical heart sensor, Crash Detection, water-resistance to 100 meters, an IP6X rating for dust-resistance, L1 and L5 GPS, GLONASS, Galileo, QZSS, and BeiDou, a water temperature sensor, a depth gauge, an always-on altimeter, Bluetooth 5.3, and dual speakers with a three-mic array with beamforming.

Common specs shared by the Series 5 and Ultra include a W3 wireless chip, 32GB of storage space, a Digital Crown with haptic feedback, an electrical heart sensor, high and low heart rate notifications, irregular rhythm notification, an ECG app, International emergency calling, Emergency SOS, Fall Detection, a compass, and WiFi (802.11b/g/n).