Vivo X300 series rumours have been surfacing online for a while. Expected to launch in October as the successor to last year’s Vivo X200 series, this year’s lineup is said to include the Vivo X300 and Vivo X300 Pro. An executive of the Chinese smartphone maker has now confirmed a few specifications of the Vivo X300 Pro, along with the handset’s performance numbe…Vivo X300 series rumours have been surfacing online for a while. Expected to launch in October as the successor to last year’s Vivo X200 series, this year’s lineup is said to include the Vivo X300 and Vivo X300 Pro. An executive of the Chinese smartphone maker has now confirmed a few specifications of the Vivo X300 Pro, along with the handset’s performance numbe…