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iPhone 7 and Apple Watch Series 2 support QZSS, Japanese GPS-like positioning system
Apple has refreshed technical specifications for iPhone 7 and iPhone 7 Plus on its Japanese website to reflect that the latest handsets support Quasi Zenith Satellite System (QZSS), a Japanese GPS-like satellite positioning service nicknamed “Michibiki,” as first reported by the Japanese blog Mac Otakara. Additionally, the website for QZSS states that the GPS radio inside Apple Watch Series 2 units sold in Japan supports QZSS, too. In addition to GPS, iPhone 7 supports Global Navigation Satellite System (GLONASS), a space-based satellite navigation system used by the Russian Aerospace Defense Forces. GLONASS provides an alternative to GPS and is the second alternative navigational system in operation with global coverage and of comparable precision. QZSS is interoperable with GPS and complements the American Global Positioning System (GPS) for a satellite positioning service that is more precise and stable. The system relies on satellites in quasi-zenith orbits (QZO), hence the name. QZSS currently uses a single satellite, with more to come soon.
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