i would recommend oppo f7 because of its features! it is powered by mediatek helio P60 and has a 4GB RAM. it also has a 16 and 25 MP Front and rear camera with LED flash and a 64 GB memory expandable to 256 GB
It's all about your budget selection,F7 is best in under 25k.. Although Vivo X21 has a inbuilt fingerprint scanner which is new.. But if you are spending 35k for your selection then wait for Oppo's upcoming flagship phone Oppo find x Which has the all new Qualcomm snapdragon 845 Soc & the lifting camera setup which is beyond of craziness.
: Download App Lock from the Google Play Store. When you first start the app, you will be prompted to set up an unlock pattern for which you need to provide an email ID for security and backup purposes.
: You will then be taken to the main screen of the app. Under the Privacy tab, scroll down to find a list of applications that you can lock. Tap on the app name that you want to lock. The first time you lock an app, you will be prompted to grant App Lock Usage data access.
: Press the back button to go back to the main menu of App Lock. Now, you can lock any app that you want by simply tapping on the lock icon near its name. At this point, if you try and open any locked application, App Lock will prompt you to enter the unlock pattern that you first created. To make the app use the fingerprint scanner for verification purposes, head over to the Protect tab and enable the Fingerprint lock option.
Now, whenever you open a locked application, you can either unlock it by simply verifying your fingerprint or by entering the unlock pattern. The fingerprints that you have registered for unlocking your device are the ones that will also work with App Lock.
In computers, pixels per inch (ppi) is a measure of the sharpness (that is, the density of illuminated points) on a display screen . The dot pitch determines the absolute limit of the possible pixels per inch. However, the displayed resolution of pixel s (picture elements) that is set up for the display is usually not as fine as the dot pitch. The pixels per inch for a given picture resolution will differ based on the overall screen size since the same number of pixels are being spread out over a different space. The term "dots per inch" ( dpi ), extended from the print medium, is sometimes used instead of pixels per inch.