In design, VIVO X9S has been improved in many details, first, X9S is thinner, 6.99m thickness, and uses a 3320mAh battery, and X9s Plus thickness has reduced to 7.23mm compared with its previous version, coming with 4015mAh battery.
On the front design, it still uses 2.5D curved glass, 5th Corning Gorilla glass , 1080P AMOLED material, and its frame has also controlled well, only 1.59mm away from left and right frame, up to 78.5% screen to body ratio, VIVO X9S has 5.5 inch, X9S Plus has 5.8 inch,they both use dual curved design, so its holding feeling is better than the first generation.
X9S uses non-pressed home button, but X9 uses pressed home button.
In hardware, VIVO X9S uses Snapdragon 625 Octa core processor, but VIVO X9S Plus adopts Snapdragon 653 Octa core processor, RAM 4GB, running Funtouch OS 3.1 based on Android7.1, which has enabled to run large games daily.
In sound quality, X9S uses AK4376 solution, X9S Plus uses ES9318, compared with other smartphones, the sound quality has been improved more obviously.
And it uses dual 20MP front camera, and 16MP back camera, 1/2.9 inch sensor, supporting PDAF, and it has added new generation image algorithm, meanwhile, VIVO X9S Plus has added its own DSP image optimization which can improve the image quality in backlight, dark light and sports scene.
In general, VIVO X9S and VIVO X9S Plus have been improved better in more powerful hardware, thinner body, better camera and 4G+ netcom, which can replace VIVO X9 right now. As for price, VIVO X9S sells at 2,698 yuan, and VIVO X9S Plus at 2,998 yuan, the former will be in presale on July 14, start to sell on July 20, the latter will start to sell officially on July 8, they have golden, rose golden and black colors.