The Moto G5 and G5 Plus come with a fingerprint scanner at its front that can be used for quickly unlocking the device.But to hide or protect your apps I would suggest you use App lock.Heres how.
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.
Here is the video guide to do the same
You can find the full specs here: Moto G5 Plus
Hide Photos and Videos on your phone
To hide photos and videos on your phone you will have to download the app named "Gallery Vault" and follow the steps below:
And you will see a confirmation message on your screen as shown in the Image below
And you are done!
You can also check the video below for your reference:
Check more details here : Moto G5 Plus
There is no such option provided by Moto in their User Interface. However, if you want to record your calls, you can definitely go with some call recording apps that satisfy the feature. ACR Call Recorder would be my pick as it is lite, simplistic and user-friendly that helps in making any person understand its features and usage.
Check complete specs here: Moto G5 Plus
Motorola phones and other phones running stock android (Nexus, Pixel, etc) only support chrome-cast. You need to buy Chromecast to connect Moto G5 Plus with TV.
To chrome cast your device follow this steps-;
Set up the Chromecast app on your phone. Touch Apps Image > Settings > Display > Cast
Set the input on your TV to the HDMI port where Chromecast is connected.
Ensure Wi-Fi is enabled on your device. Touch Apps Image > Wi-Fi > enable Wi-Fi.
On the device, open Quick settings - swipe down twice from the status bar - and touch Cast. Touch the name of the Chromecast to use.
You can watch this step by step video
Lenovo K8 Plus vs Moto G5S Plus
Both the phones have their pros and cons, but I think you should go for Moto G5S Plus.
Moto G5S Plus has the following advantages over Lenovo K8 Plus:-
1.Moto G5S Plus has 4GB RAM while Lenovo K8 Plus has 3GB RAM.
2.Moto G5S Plus has 5.5" Display Size while Lenovo K8 Plus has 5.2" Display Size.
It is not like that it is a one sided game, Lenovo K8 Plus has the following advantages -
1. Lenovo K8 Plus has 4000mAh Battery while Moto G5S Plus has 3000mAh Battery.
Verdict- In my opinion, Moto G5S Plus is a better phone in overall performance but if you need a phone with a good battery and in terms of weight than you can go for Lenovo K8 Plus.
You can also see the comparison between the devices on 91mobiles: Lenovo K8 Plus vs Moto G5S Plus