Microsoft creates dedicated Android division in sign it's doubling down on Google's mobile platform.
Apple is reportedly testing memory chips from a new supplier as it seeks to protect itself from market disruption.
Yandex SDK helps app developers capture analytics for marketing purposes, but also gathers user metadata.
Apple believes rising living costs could impact demand for mid-range smartphones and wireless earphones.
4G is currently the dominant technology but there is clear demand for 5G, with the market set to reach $8.7bn within five years.
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