What is the beslt way to transfer my data from my old phone to new phone?

i’m going to switch to a samsung a35 from huawei y7 2019

so i want to transfer all my data (at least most of it) in an easy way to my new phone, so how do i do it?

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If both devices are rooted you can use Swift Backup or Neo Backup.

Otherwise, you cannot. Anything kept in the cloud should reappear when you sign into that account, but anything that’s only local (app data, files, media) might be lost. Samsung Smart Switch tries the hardest, that I’m aware of, but any app that keeps local data that doesn’t allow it to be saved results in only the app itself being transferred (provided it is still in the Google or Samsung store for your new device). Typically biometrics aren’t transferred.

Gmail is Google cloud only. If you downloaded attachments then deleted the message you must explicitly deal with that file else it will be lost.

The contacts are sync’d with Gmail provided you didn’t mark the contact as phone or SIM only.

Media is copied to Google’s cloud provided you enabled that in the Photos app – the default is off.

Drive will keep copies of folders in Google’s cloud provided you enabled that, on a folder by folder basis.

Your bank data is cloud only, though you might have downloaded files.

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Simply, and sadly, you don’t.

When setting up a new phone, you’ll log in to your Google account. This will access your ‘history’ in the Play store, and will automatically tell the new phone to download the same apps that are installed on your old phone. So it doesn’t transfer the apps - it just installs them fresh on the new device.

Within those apps, only a little of the data & preferences will transfer over.
Google apps, (and OEM stuff like Samsung-(app name here)) might transfer your settings. But anything that has a cloud sync will at least transfer your in-app data/content. (Calendar stuff will sync, gmail messages, Notes, alarms, etc)

But back to the general apps, you’ll have to re-login to everything. 2FA, banking, social media, browser accounts, all of it.
Now if you use a password manager, once you log into that, setting up the rest of your apps can be done in a few hours, depending on the number of them. (I factory reset my phone every 6months or so, just for the sake of having a ‘fresh device’ and it can all be done over a single Saturday, if you’re sync’d.)

Android, being so diverse in the thousands of various devices across all the different manufacturers, doesn’t have a way to sync & transfer all of the data in & out of apps that would be compatible with every device. Apple can what you want to some degree, since they only have a handful of devices, and all are locked into their ecosystem. I’m not sure how thorough it is, but I have heard from iphone users that it’s a lot easier to do.

Best advice I could give you, is to sync everything you can on the old device to the cloud, and bring it to the new device on an app by app basis.

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Easy… just go to settings → System → Backup and make sure backup to Google drive is on. And tap backup now. And when you setup your new phone just sign in to your Google account and tap restore from backup… done.

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Just use nearby share to move things over. Built into google play services.

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Backing up in settings app by default is a good option. You could additionally try the Google one app as well. Device backup has become free a few months back.