According to the changelog of the update, the company has made these improvements in OnePlus 7 Pro:

The touch sensitivity has been improved. Smoother Visual effects. Enhanced haptic feedback for the keyboard. Improved sensitivity of automatic brightness. Optimized auto-switch of display resolution. Enhanced speed and accuracy of GPS when the screen is turned off. Haptic feedback of third-party app notifications has been adjusted. Face Unlock assistive lighting has been added. You can access it by heading to Settings>Security & lock screen>Face Unlock>Face Unlock assistive lighting. Improved sound enhancement for OnePlus Bullets Wireless 2. Head to Settings>Sound & vibration>Dolby Atmos >Earphone Adjustment >Earphone Sound Enhancement to access it. Updated Android security patch to 2019.06. Support for VoLTE/VoWiFi for 3 SE and Telenor SE (EEA Only) added. General bug fixes and improvements

The new update has also included some camera improvements such as:

The performance of camera mode has been improved while switching from front to back. Auto-focus has been upgraded. Advanced photo-stitching in Panorama mode. Improved photo quality of 48MP JPG in Pro mode.

As it was mentioned earlier, that OnePlus 7 Pro was launched in India last month. The smartphone is available in three storage options –  6GB RAM/128GB storage, 8GB RAM/ 256GB storage and 12GB RAM/ 256GB storage. While the base variant costs Rs 48,999, the 8GB RAM/256GB storage model is priced at Rs 52,999 and the most high-end one can be picked up at Rs 57,999. The smartphone is powered by Qualcomm’s Snapdragon 855 SoC and packs up to 12GB RAM. The device houses 4,000mAh battery and runs Android 9.0 Pie skinned with OxygenOS. The smartphone sports 6.67-inch curved Quad HD+ Fluid AMOLED display that has a waterdrop shaped notch on the top to house a 16MP front-facing camera. It’s triple rear camera setup consists of a 48MP primary Sony IMX586 sensor, an 8MP telephoto sensor that has the 3X zoom and a 16MP ultra-wide angle lens. The device has an in-display fingerprint scanner. For the latest gadget and tech news, and gadget reviews, follow us on Twitter, Facebook and Instagram. For newest tech & gadget videos subscribe to our YouTube Channel. You can also stay up to date using the Gadget Bridge Android App.

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