Longer upgrade cycles and growing purchases of used smartphones said to threaten iPhone sales

Longer upgrade cycles and an increasing number of consumers opting to buy used models poses a threat to future sales of flagship models from the likes of Apple and Samsung, argue industry commentators.

Back in 2014, the average upgrade cycle was 23 months – likely attributable to most consumers upgrading every two years, while a much smaller number upgraded every year. But that number has already hit 31 months, says BayStreet Research, and is set to climb higher still  …

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