If you don't have a cloud-based account and you need to backup important data or even share them, then the ideal option for you is an OTG pen drive. You can invest in this SanDisk OTG pen drive as it allows you to do more than just backup data.
Compatible with OTG-enabled Android Devices
If you have movies, videos or some work-related files that you need to share with your friends or colleague, simply plug in this OTG pen drive to your OTG-enabled Android smartphone or tablet and share them. You can always use this OTG pen drive as a backup, allowing you to shoot more pictures and videos on-the-go.
128 GB Capacity
Use it as a backup or just to transfer files from your phone to your PC or laptop, the memory capacity of this pen drive allows you to transfer or backup a large amount of data.
This pen drive comes with a microUSB connector on one end and a USB 3.0 connector on the other end, enabling an easy bridge between your smartphone and laptop. You can easily transfer all the data in your smartphone to any of your devices. Also, the USB 3.0 connector is backward-compatible with USB 2.0 ports.
High-speed Transfer Rate
You can transfer multiple files from this flash drive to your computer as it supports a high-speed transfer rate of up to 150 Mb/s. So whether you are transferring large audio books, movies or just photos, copying them will be a matter of seconds. This high-speed transfer rate makes your smartphone the ideal on-the-go entertainment unit as well.
SanDisk Memory Zone App
You can download the app from Google Play Store and use it to organize, manage and backup all the files stored in your Android smartphone.
The moment this "plug and play" flash drive is plugged into your phone, it is automatically detected by your OTG-enabled smartphone.
This flash drive is compatible with most Android devices. With no drivers required, it is compatible with PC computers that run Windows Vista, 7, 8 and 10 and Mac computers that run OS 10.6+.