Research from B-Stock, which claims to be the world’s largest business-to-business marketplace for trade-in and overstock mobile phones, has confirmed the rapid growth of the secondary mobile market driven by growing consumer demand for used mobile devices, in particular the latest Apple devices.

B-Stock believes the secondary mobile market is set to grow from its current value of $25bn and reach $39bn by 2025. It adds that as trade-in rates rise and new technologies emerge, more carriers and manufacturers are pushing devices to secondary sales channels.

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