Here's what's similar: Both vivo X7 and X7 Plus powers a common hardware that is same Snapdragon 652 chipset (our favorite Qualcomm 600 series SoC, if there is one) paired with 4gigs of RAM and 64gigs of internal storage.
Camera: On the front side of both the devices there is a 16MP selfie camera snapper with an f/2.0 aperture. But the primary shooters are different albeit, the smaller vivo X7 houses a 13MP f/2.2 unit, and the larger X7 Plus is equipped with a 16MP Sony IMX298 sensor.
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Other Specs: Connectivity option on both devices includes Cat.7 LTE, Wi-Fi ac, Bluetooth 4.1 and a GPS receiver. There's also a fingerprint sensor embedded in the home button. The thing which took all the excitement is the Android version- 5.1 lollipop is bit dated already.
On the back of the X7 there's a 3,000mAh battery while the X7 Plus hosts a 4,000mAh of battery.
Price & Availability: The vivo X7 will go on sale with a price tag of CNY 2,498 ($375) starting July 7 and the X7 Plus will go on sale 8 days later and the price details of this will be announced soon.