Oppo has announced the launch of its next selfie-focused smartphone, the Oppo F1s, for next month. The handset successor to the Oppo F1 that was launched earlier this year, not much else is known about…

Oppo has announced the launch of its next selfie-focused smartphone, the Oppo F1s, for next month. The handset successor to the Oppo F1 that was launched earlier this year, not much else is known about…