Apple Watch Ultra 4 lists GPS, Galileo, QZSS, and BeiDou in its connectivity specs, but GLONASS is missing from the published list.
GPS
iPhone Duo GPS and Sensors: Dual-Frequency GPS With NavIC, Barometer, and Four Ambient Light Sensors
iPhone Duo uses dual-frequency GPS that works with six satellite systems, GPS, GLONASS, Galileo, QZSS, BeiDou and NavIC, according to Apple’s tech specs. The same sheet lists a barometer, a high dynamic range gyroscope, a high-g accelerometer, a proximity sensor and four ambient light sensors, twice the usual count, which is the clearest hardware sign…
Apple Watch Ultra 4 Max Extended Workout Mode: 45 Hours With One-Second GPS for Ultramarathons
Apple Watch Ultra 4 adds a Max Extended Workout mode that Apple rates for up to 45 hours of tracking while keeping GPS sampling at one-second intervals. Apple says the mode is aimed at 100-mile races, and it is the longest workout figure the company has published for any Apple Watch. It sits above the…
Apple Watch Ultra 4 GPS and Satellite: What Apple Says About Accuracy and the Two Free Years
Apple says Apple Watch Ultra 4 has the most accurate on-device GPS in a sports watch, and that satellite communications continue on the new model with two years of service included. Both claims come from Apple’s press release for the $799 watch, which is in stores on Friday, September 18. Satellite arrived on Apple Watch…


