To know if someone is online on WhatsApp is extremely easy. WhatsApp has many amazing features. WhatsApp even provides the last seen details of a contact. For instance, it will show you if that person is online on WhatsApp or when that person last came online.
How to Know if Someone is Online on WhatsApp for Android
1. Open WhatsApp Messenger - The first step will be to open the WhatsApp messenger on your android phone. It is the white and green bordered bubble icon.
2. Go to the Chat - When you open the WhatsApp messenger, it will take you to the chats page. You will find the details of all the past conversations on WhatsApp.
3. Find the Particular Person - To know if someone is online on WhatsApp or not, you will have to find that particular person's chat.
If you have not conversed with that person before, you can still find that the person was online or not.
To do that, look down on your screen. You will find a white and green bordered messaging icon.
Tap on that icon. It will take you to the complete WhatsApp contact list you have in your android phone.
From there you can find that particular person. You can simply scroll down or even search the name from the search bar on the top.
4. Tap on the Name or Open the Chat - The next step will be to open the chat box either from the chat page or from the contact list.
5. See online Status - Look above the screen. You will find the contact details there. You will find a display picture if there is any from there.
It is from there only that you will find if the person is online on WhatsApp or not. You will find online or last seen at this time just beneath the display picture.
What if you are not seeing online status of any person?
Note - If you are being unable to find the online or last seen details of a person, it can be due to the account privacy settings on their phones.
If that person has made his last seen privacy settings to no one, then you will not be able to view the online or last seen details of that person.
Even if you have altered your account privacy details to no one, then also you will be unable to view the online details of any person.
Conclusion - Thus to view if someone is online on WhatsApp, both of you must have similar settings. For instance, both of you must have your privacy settings as my contacts only. Other than that, both of you must have each others' numbers saved as well.