Samsung Galaxy M21

10 / 10 based on 2 reviews
No longer available
Samsung Galaxy M21 (M215)
Samsung Galaxy M21 black front left side
Samsung Galaxy M21 blue back
Samsung Galaxy M21 black front right side
Samsung Galaxy M21 black left side
Samsung Galaxy M21 black back
Samsung Galaxy M21 black bottom
Samsung Galaxy M21 black overview
Samsung Galaxy M21 black right side
Samsung Galaxy M21 black top
Samsung Galaxy M21 green back

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Samsung Galaxy M21 product details

The Samsung Galaxy M21 is a mid-ranger from Samsung's M-series. M-models are known for their large battery. Whether that is also true for this M21 is something we are going to find out. And then we will immediately look at all its other plus and minus points.

Plastic housing, large battery

The housing of the Galaxy M21 is streamlined with rounded glass and a glossy finish. In other words, the M21 lies comfortably in the hand without sharp corners. This is a plastic housing, also known as polycarbonate. This has the advantage that it is reasonably strong and never feels cold to the touch. This is of course convenient during a cold winter, but it is usually found to be less premium than, for example, metal or glass. Samsung has done this in order to keep the costs as low as possible. Now Samsung has phones in its assortment that are cheaper, so it is more likely that Samsung has put that money into other things. A larger battery for example. The one in the M21, with a capacity of 6000 mAh, is very large. A battery life of 2 days is therefore certainly feasible.

Samsung Galaxy M21 black overview

Triple Camera with 4K video

Samsung has further equipped the Galaxy M21 with a more than 6.4 inch screen. They themselves call it an 'Infinity-U Display'. That 'U' is a reference to the u-shaped notch for the 20MP selfie camera. That is spacious enough for sharp self-portraits. There's even a Live Focus function with which you can add a blurry background to your selfies. Your selfies stand out more and generally look better. On the back there are 3 more cameras; a 48MP main camera with lots of detail, 8MP ultra wide angle lens with 123° angle of view and a 5MP depth camera. Thanks to this Triple Camera you have enough resources in hand to take beautiful pictures. Videos can be shot in a maximum 4K resolution and there is a slow-motion option of 240fps.

Main Samsung Galaxy M21 specifications

  • 6.4-inch large Infinity-U Display with Super AMOLED FHD+ panel
  • Triple Camera with 48 + 8 + 5 MP sensor (main camera + ultra-wide camera + depth camera) and 4K video
  • 20MP selfie camera at the top in U-shaped notch
  • 6000mAh large battery with 15 Watts fast charging
  • Octacore processor with 4 GB RAM and 64 GB storage
  • Unlock with fingerprint scanner on the back or face recognition on the front
  • Dual SIM slot + memory card slot (up to 512 GB)

Game Booster

The Samsung Galaxy M21 runs under its own chipset; the Exynos 9611 on a maximum clock frequency of 2.3 GHz. This is an octa-core processor, i.e. consisting of 8 cores. Combined with 4 GB of RAM memory, this is enough for everyday activities. Gaming will also be possible but don't expect miracles. Samsung did add a special feature called Game Booster. Once activated, it monitors the temperature and memory usage and adjusts the settings accordingly. Game Booster can also disable notifications and Bixby so that they do not bother you during gaming. Finally, the storage memory is 64 GB and can be expanded by up to 512 GB via a memory card. More than enough for all your content.

Most important Samsung Galaxy M21 specifications

Dimensions 159 x 75.1 x 8.9 mm
Weight 188 grams
Item ID SM-M215
EAN code 8806090494925, 8806090486821, 8806090486807, 8806090485879, 8806090485862, 8806090472602, 8806090472596, 8806090472572
Fingerprint recognition
Operating system
Android 9.0 (Pie)
Color display 6.4 inch, Infinity U Full HD+, notch
Camera 48 MP, 5 MP, 8 MP
Processor Samsung Exynos 9611, octa core
Secondary camera 20 MP
Dual SIM
Data network
4G (LTE)
Build-in memory
Internal memory 4 GB (Size (RAM)), 64 GB (Storage)
Power supply
Battery 6000 mAh
Fast charging

All Samsung Galaxy M21 specifications

Video about the Samsung Galaxy M21

This YouTuber would rather go for the Samsung Galaxy M21 than the M11. She has her reasons for doing so, as she explains. But the M21 is also a bit more expensive than the M11. In other words; pros and cons

Alternatives of the Samsung Galaxy M21

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Product images are relative in size
Samsung Galaxy M21 (M215)
Apple iPhone 11 Pro Max

Photos relative in size

 Current product 
Fingerprint recognition
Android9.0 (Pie)
Color display6.4 inch, Infinity U Full HD+, notch6.5 inch, Super Retina XDR, notch
Camera48 MP, 5 MP, 8 MP12 MP, 12 MP, 12 MP
ProcessorSamsung Exynos 9611, octa coreApple A13 Bionic
Secondary camera20 MP12 MP
Dual SIM
4G (LTE)
Internal memory4 GB (Size (RAM)), 64 GB (Storage)4 GB (Size (RAM)), 256 GB (Storage), 512 GB (Storage), 64 GB (Storage)
Battery6000 mAh3500 mAh
Fast charging

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Questions and answers about the Samsung M21