Comparison Related Question and Answer

No, Xiaomi Redmi Note 7 does not have NFC.

You can see detailed specs here: Xiaomi Redmi Note 7

It is a good option to hide or lock your apps to save you from a mini heart attack when someone takes your phone, or keep some applications personal to you. 

The fight between these two phones is a close one. With great specs provided by both the phones, it is tough to choose between these two. But comparing all the factors and prices, the Redmi Note 8 Pro wins here. With Bigger Battery, NFC and lower price, it does seem to be better.

Check Full Comparision:  Realme XT vs Xiaomi Redmi Note 8 Pro

No, Samsung Galaxy M30 doesn't have fast charging support, but it has a huge capacity of 5,000mAh Li-ion gives it a healthy backup for hours.

To see the full specifications of Samsung Galaxy M30 : Samsung Galaxy M30

No, Samsung Galaxy A30 does not possess any IP certification to protect your phone against water damage.

What to do if you accidentally dropped your phone in water:

You can see detailed product specifications here: Samsung Galaxy A30

Definitely, Xiaomi Redmi K20 Pro is not waterproof. Though it has a non-removable back cover, still it is not waterproof. It may sustain a few splashes of water, but it will not withstand a drop in water. IP67 or IP68 certification is not very easy to attain. All the ports, SIM stray, and speakers need to be waterproof and ensure no water penetrates. You need to be careful while using your phone, if it drops in water, you definitely need to get a new one.

You can check the specs of Xiaomi Redmi K20 Pro here: Xiaomi Redmi K20 Pro

Honestly speaking, fast charging is the most relevant and important feature these days in phones. You can charge your phone fully within minutes while you are getting ready to leave your home. Yes, Nokia 7.2 supports quick charging. If configured correctly, the phone can give you up to a day's battery.

You can check the specs of Nokia 7.2 here: Nokia 7.2

Yes, Redmi Note 7 Pro supports OTG. USB OTG or USB On-The-Go is one of the most recent technologies that allows you to connect your pen drives and in some cases hard disks to your smartphones and tablets. It has a cable and through that cable, you can directly view and use your pen drive in your smartphones.

Definitely, Redmi Note 7 Pro is not waterproof. Though it has a non-removable back cover, still it is not waterproof. It may sustain a few splashes of water, but it will not withstand a drop in water. IP67 or IP68 certification is not very easy to attain. All the ports, SIM stray, and speakers need to be waterproof and ensure no water penetrates. You need to be careful while using your phone, if it drops in water, you definitely need to get a new one.

Many phones these days provide an inbuilt app locker. You can find this option as App Locker, generally under the Utilities option. You can simply open the option and select an app which you wish to lock. Now everytime you wish to open that app, you will have to enter the phone lock password or authenticate using fingerprint sensor, if your phone supports fingerprint.

Alternatively, if your phone does not support this feature, you can download the app named app locker from play store.

You can find it here.

Configuring it is easy.

1. Download App Lock from the Google Play Store.
   
2. You will be asked to set a pattern lock when you launch it for the first time.
3. Then you need to configure an E-Mail ID for security and backup purposes.
4. Under the Privacy tab, you can find a list of apps installed. You can select any one of them to lock.
   
5. Now whenever you open the app you have locked using AppLock, you will be asked for a password.
6. You can also unlock it using your fingerprint.

You can check the video here:

No, Samsung Galaxy M30 doesn't come with earphones in the box. 

To see the full specifications of this device: Samsung Galaxy M30

Yes, Samsung Galaxy M30 has a metal body. 

You can see detailed specs here: Samsung Galaxy M30