The Samsung M21 will most probably run Android 10 out of the box with Samsung’s One UI operating system over it. The phone may come with a triple or a quad-camera setup as it is the current trend in smartphones. Details about the presence of a fingerprint sensor and its placement are not clear yet. If it does come with one, the device may feature the fingerprint sensor on its rear like other phones. This rudimentary information can only help us estimate the features of the phone, with rumours getting confirmed only after the phone launches or arrives in the market. The report also suggests that the Galaxy M21 will be featured in three colours, black, blue and red. Other phones that Samsung may launch soon belonging to the M series are the M11 and M31. The M11 and M31 will have variants in black and blue colours. There are rumours of two more colours to be available for the series. The M11 may be available in a purple colour while the M31 might have a green colour variant available. Price-wise, we believe that the M11 and M31 might be on either end of the M21, which is speculated to be a mid-range smartphone. The display portion of these devices may have a punch-hole or a V notch camera layout. The other specifications and details of the prices of these phones are still being deliberated on by industry experts. However, if rumours come true, then these phones might make an appearance by early 2020. For the latest gadget and tech news, and gadget reviews, follow us on Twitter, Facebook and Instagram. For newest tech & gadget videos subscribe to our YouTube Channel. You can also stay up to date with the Gadget Bridge Android App.