(Bloomberg/Vlad Savov) — Apple Inc. will retake its crown as the world’s largest smartphone maker for the first time in more than a decade, lifted by the successful debut of a new iPhone series and a rush of consumers upgrading devices, according to Counterpoint Research.

The iPhone 17 models introduced in September have been a hit both domestically in the US and in Apple’s other critical market, China. They’ve enticed more people to upgrade, leading to double-digit year-over-year sales growth in both markets, according to the researchers. The US company also is benefiting from a cooling of US-China trade tensions and a depreciating dollar that has boosted purchases in emerging markets, they added.

The growth will propel Apple past longtime rival Samsung Electronics Co. this year, accord

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