Samsung Galaxy M21s is the upgraded version of Galaxy M21. If you are on the market right now for a new phone, please buy the M21s instead of the M21.
Here are the full specs of Galaxy M21s:
|Galaxy M21s Feature||Galaxy M21s Specs|
|Network Technology||GSM / HSPA / LTE|
|Expandable Storage?||Yes, microSDXC up to 512 GB.|
|Display Technology||Super AMOLED|
|Display Resolution||6.4 inch 1080 x 2340 (403 PPI)|
|Screen Protection||Corning Gorilla Glass 3|
|Processor||Samsung Octa-core Exynos 9611|
|Internal Storage||64GB or 128GB|
|RAM||4GB or 6GB.|
|Rear Camera||Tripple camera. 64 MP wide, 123-degree ultra-wide 8MP, and 5 MP depth camera.|
|Front Camera||32 MP wide camera.|
|3.5 mm headphone jack?||Yes.|
|Fingerprint Sensor?||Yes, Rear-mounted.|
|Battery size||Non-removable Li-Po 6000 mAh.|
|USB Type||USB Type-C 2.0|
Should you buy Galaxy M21s or not? Learning about the pros and cons of M21s is the best way to make a purchase decision. This way, instead of relying on others’ reviews, you be the judge and decide on your future buying decision.
Pros of Samsung Galaxy M21s:
These are the advantages of M21s.
The biggest pros of the Galaxy M21s is its price. This phone has better specs than Galaxy M21 but costs about the same. Compared to other Galaxy phones, M21s is significantly cheaper. For example, different Galaxy phones prices are:
- Galaxy A51 5G: $400.
- Galaxy F41: $215.
- Galaxy M21: $250.
- Galaxy M21s: $275.
Galaxy M21s specs are high, but the price is not that high compared to other Samsung mid-range phones. We think it is a bargain to buy this phone instead of buying other mid-range Samsung phones or Chinese phones.
The Galaxy M21s has a 6.4-inch Super AMOLED screen, and its resolution is 1080 x 2340 pixels (403 PPI density). The screen resolution is so high that you won’t be able to distinguish individual pixels. Super AMOLED infinity U screens provide vivid colors, and it is far superior to an LCD screen. Here, “U” denotes that this screen has a U shape cutout for the front camera.
Moreover, this screen of the M21s can reach up to 420 nits. That’s bright enough to see the screen in full sunlight.
The Galaxy M21s comes with two types of storage options. 64GB (only 45GB usable) or 128GB memory options (only 108 GB is available to the user). Moreover, the M21s has an expandable memory slot, where you can insert a microSD card up to 512 GB. It is very convenient because you don’t have to shell out hundreds of dollars for memory upgrades like Apple’s iPhone.
Here’s an example. The 128 GB iPhone 12 Pro costs $999, and the next storage version, 256 GB, costs $1099. There’s no difference between these two phones except the internal storage capacity. So, Apple is charging you $100 for 128GB of memory. Now check the price of this 128 GB Samsung microSD card on Amazon. It is significantly cheaper than Apple’s storage expansion asking price. It is insane that Apple’s storage option is 400% more expensive than the average market price. By now, we hope you do realize the benefit of expandable storage space.
Has a dedicated fingerprint sensor:
The Galaxy M21s has a dedicated fingerprint sensor on the back of the phone. However, the placement of this sensor is awkward. The side-mounted or in-display fingerprint sensor has a better user experience than the back-mounted sensor.
However, this back ultrasonic fingerprint sensor is better than the Galaxy A71 on-screen fingerprint sensor. The optical sensor is slower and inaccurate. You have to place your finger at precisely the right place; otherwise, the fingerprint sensor would not recognize your fingerprint. It is frustrating.
Another great feature of Galaxy M21s is dual Nano-SIM support. Therefore we can use two SIM at the same time. It’s beneficial because while conducting business, we can use a personal SIM and a business SIM. Therefore, we don’t need to carry two different phones.
3.5mm headphone jack:
Nowadays, most of the phone comes without a headphone jack. However, The Galaxy M21s has a 3.5mm headphone jack. Therefore you don’t have to buy a USB-type C or Bluetooth headphones.
The M21s has a built-in FM radio. The 3.5mm headphone cable works as the FM radio antenna.
The M21s comes with the Dolby Atmos surround sound functionality. With the Dolby Atmos, you can experience moving audio sounds that flow all around you. However, to experience this, you have to use a headphone.
The M21s has a massive 6000 mAh battery. With a single charge, this phone can smoothly go up to 2 days.
The Galaxy M21s has 15W fast charging technology. As a result, charging this phone does not take too much time.
However, fast charging degrades the battery quickly compared to slow charging. So, we suggest that if you purchase this phone, slow charge it overnight. It will improve your phone battery life.
Galaxy M21s is a very secure phone. It’s perfect for the “Bring Your Own Device (BYOD)” programs. Samsung Knox is integrated into this phone’s hardware and software. This multi-layered Knox security mechanism protects sensitive data from malware threats. Furthermore, the Galaxy M21s has a built-in malware scanning and detection program.
Galaxy M21s has “Always On Display”:
The Galaxy M21s has a useful feature – “Always On Display.” Using this feature, you can control music, watch time and date, view the calendar, view battery percentage, etc., even when the screen is turned off.
Does Always-On Display drain the battery? The answer is no. The Always-On Display does not drain the battery because, in an LED, OLED, or Super AMOLED display, the display driver only turns on those pixels (LED) required to show text, image, or graphics related to AOD, while all other pixels (LED) turned off. Hence, It uses very little energy, and in our experiment on our Galaxy M21s, we found that it only uses 1% battery energy per hour.
Ethernet Cable Connection:
You can use a USB C to Ethernet adapter (for example, like this one https://amzn.to/2GD2Av2) to connect the Galaxy M21s to an ethernet network. This way, you can get the internet on your M21s phone without WiFi.
Samsung Find My Mobile:
Every Samsung phone has a handy feature named “Find My Mobile.” If someone steals your phone or you lose it, with the help of this feature, you can track your Samsung phone online. Moreover, you can remotely lock it and delete personal data. You can even use “Find My Mobile” to unlock your phone if you forget your pattern, PIN, or password. To learn more, please visit https://findmymobile.samsung.com/.
Useful Apps and Features in Galaxy M21s:
In Galaxy M21s, there are many useful apps. The following features of this phone are beneficial.
Every Samsung phone, including the Galaxy M21s, has the “Secure Folder” feature. You can use the secure folder to protect your private photos, messages, apps, contacts, files, etc., from being accessed by others. It’s a great way to save and protect sensitive data on your phone.
Scan QR Code:
The Galaxy M21s has a built-in QR code scanning feature. From the notification panel, you can activate this feature.
In Galaxy M21s, there are many useful apps. Game Launcher is one of them. You can use the Game Launcher app to record your phone screen and system audio while you play an android game. A third-party screen recorder app can only record the phone screen, not system audio. So, this is very useful for YouTubers.
Built-in Screen Recorder:
The Galaxy M21s also has a built-in screen recorder app. So, you don’t need to install a 3rd party app to record your phone’s screen.
WiFi Direct Printing:
If you have a printer that supports WiFi, you can print anything from your M21s phone without a WiFi router.
SmartThings, Smart View:
Suppose you have Samsung devices such as a Samsung smart fridge, TV, oven, dishwasher, Air conditioner, Samsung washing machine, Samsung dryer, etc., in your home. In that case, you can control those devices using your Galaxy M21s with SmartThings and SmartView app. For example, you can wirelessly cast your phone screen onto your Samsung TV through the SmartView app.
Galaxy M21s is perfect for kids. This phone has a parental control feature. While activated from settings, you can restrict access to apps and set their usage times. Moreover, you can also monitor daily usage time and activity history, including the history of frequently used contacts and browsing history. You need a PIN to deactivate “Samsung Kids” once it is enabled. So, don’t worry that your kid will disable it.
Data Usage Monitor:
The Galaxy M21s comes with a built-in data usage monitor. It is a useful feature to keep track of data usage.
Don’t be surprised to read that many apps use data in the background, even if the phone screen is off. To test in a Samsung phone, Goto Settings -> Connections -> Data Usage -> Data Saver. Now tap on “Allow unrestricted data usage.” Now in the top right corner, click on”⋮” and click on “Sort by allowed apps.” Now click again on”⋮”and “Show system apps.” You will get all the apps that use your phone’s internet data in the background. If necessary, you can turn off data permissions for apps individually by switching the toggle button.
Cons of Samsung Galaxy M21s:
These are the drawbacks of the M21s.
Inferior Exynos Processor:
The Galaxy M21s uses Samsung’s Exynos 9611. This processor has a bad reputation for poor performance and lousy battery management. Qualcomm’s processor is far superior to the Exynos processor. Sometimes we see that the Exynos processor is getting a better benchmark score than the Snapdragon processor, but the benchmark score is not everything. A processor, good or bad, depends on how it performs over the years. On long term usage, Exynos performs poorly.
To learn more about why Samsung uses Exynos processor instead of Qualcomm’s Snapdragon processor, click here.
Problems with AMOLED Display:
At the start of this article, we said that Galaxy M21s has an AMOLED screen and praised it. However, the dynamic AMOLED screen has two drawbacks.
- One, AMOLED display loses its sharpness, crispiness, and vividness after a few years. The screen would look dull compared to a newly purchased M21s’s screen.
- Second, the AMOLED display has a screen burn issue. It arises when someone uses a single app extensively — such as Google Maps — for a long time. This extended usage would leave a ghost watermark of the used app imprinted on the screen permanently.
No wireless charging:
The Galaxy M21s does not have wireless charging functionality. Nowadays, even a cheap phone from Xiaomi or OnePlus comes with a wireless charging feature. But this M21s does not come with it.
Longer Charging Time:
Though Galaxy M21s has a massive battery, charging this phone with the supplied 15W charger takes a lot of time. It takes more than 160 mins or 2 and 1/5 hours to charge from 0% to 100%. But this charging time is when the phone is new. After a few years, this phone will take even more time to recharge.
No headphones in the box:
Nowadays, it is a trend that the phone manufacturers do not give headphones in the box. The Galaxy M21s, too, comes without a headphone in the box. You either have to use your old 3.5mm headphone or buy one from the market.
M21s is not Water or Dust resistant:
The Galaxy M21s is not IP67 or IP68 rated, which means the M21s is not waterproof or dust resistant. Therefore, we ask you to be careful before you take your M21s to the sea beach. It’s because water or sand will damage your phone.
Galaxy M21s does not have eSIM:
The M21s does not have eSIM support; it only has two Nano-SIM support.
No Dex Support:
The Galaxy M21s does not have dex support. It is a handy feature that Samsung decided not to include in this phone. Dex is beneficial because, with the help of the Dex software feature, we can turn our phone into a trackpad for TV or PC, wirelessly connect to a monitor or TV for enhanced multitasking experience such as browsing the web like a PC, etc.
No ANT+ support:
The Galaxy M21s does not have ANT+ support. Therefore, we can’t use this phone with health and fitness devices such as Fitbit.
No MHL Support:
Most of the Samsung phones support MHL to HDMI connections. However, Galaxy M21s does not have MHL support. It’s a great feature that Samsung decided not to include in this phone.
MHL is a fantastic piece of technology that many do not know. MHL stands for Mobile High Definition Link. Using the MHL-HDMI cable, you can mirror your phone screen to any projector or TV. This feature helps you to give a presentation from the phone or watch a movie on the projector.
On Amazon, if you search “MHL to HDMI,” you will get thousands of results. This cable will help you transfer your phone display signal to an HDMI port. Before you buy your MHL to HDMI cable, please make sure which USB your phone supports, whether it is a micro USB, mini USB, or USB type C.
No Stereo Speaker:
The Galaxy M21s does not have a stereo speaker.
We always say that one good camera is better than three bad cameras. Though M21s has three main cameras, honestly, these cameras do not take great pictures. The pixel in cameras does not mean anything. A 12 MP DSLR camera takes far superior pictures than this 64 MP M21s camera.
No Optical Image Stabilization (OIS):
M21s cameras both on the front and the back do not have OIS.
Phones 4K video is awful:
The Galaxy M21s has decent cameras and can record 4k video. However, a 4k video recorded on phones is inferior compared to 4k videos recorded in a DSLR camera. Moreover, M21s cameras are not Optically or gyro-stabilized. Therefore this phone is terrible for recording video while you walk. The M21s camera will fail to stabilize the camera on every footstep, especially while recording 4k videos.
The Galaxy M21s has a non-removable battery. It is a disadvantage because the removable battery is useful in many scenarios. An old phone loses its battery capacity. So, it charges slowly but discharges rapidly, making the phone unusable for a practical purpose.
Moreover, if Samsung OS detects the battery has become weak, it will slow down the processor to protect the battery from further deterioration. The slow processor will make a Samsung phone laggy. It is why an old Samsung phone lags and hangs. Replacing the old battery with a new one will solve all these problems. But, the M21s battery is non-removable. So, when your Galaxy M21s phone gets old and becomes slow, you have to replace the phone itself.
Samsung Phone Becomes Hot:
Samsung phones overheat quickly. For the last ten years, Samsung failed to fix the phone overheating issue. Samsung acts like this issue does not exist.
If you play any video game, run YouTube, Netflix, or run an app that uses a lot of processing power — such as a video editor — the phone would become so hot that it would be impossible to hold it in hand. When the phone overheats, your phone will become slow and laggy. Furthermore, your Galaxy M21s can also overheat while recording a 4k video with the phone cameras.
This article describes in depth why Samsung phones lag and hang.
No NFC and No Samsung Pay:
The Galaxy M21s does not have NFC built-in. Therefore we can’t use this phone to pay in stores using Samsung Pay.
Though I love Samsung Phones, I’m not too fond of their software. Samsung always ships its phone with a lot of bloatware pre-installed. M21s is not different, either. This Galaxy M21s comes with more than 30 preloaded apps. There are several duplicate apps too.
You may think it’s not a big deal for your M21s because you have plenty of remaining storage capacity left for you. But the problem with pre-installed bloatware is that those apps have some root permission to access your user data that 3rd party apps don’t have.
Moreover, A pre-installed app can run several processes in the background, which you will never be able to detect. For example, the Facebook app runs several processes in the background that consume a lot of battery and processing power. It not only limits the battery but also prevents other apps from running smoothly, such as Maps. It is why Google maps crashes if you have Facebook installed.
Duplicate Apps in Galaxy M21s:
Samsung is infamous for shipping its phone with duplicate apps. Galaxy M21s is not an exception, either. The following are similar apps in a Galaxy M21s.
- Google Assistant.
- Samsung Bixby.
Duplicate App Store:
- Google Play Store
- Galaxy Store
Duplicate Music App:
- YT Music
- Google Chrome
- Google (Search)
- Samsung Internet
Duplicate Online Storage:
- Google Drive
- Microsoft OneDrive
Numerous Email Client:
- Samsung Email
- Microsoft Outlook
Duplicate Photo manager:
- Google Photos
- Samsung Gallery
Pre-installed Microsoft Bloatware:
Samsung preloads every Galaxy M21s with the following Microsoft apps.
- Office Mobile
- Microsoft One Drive
- Microsoft Outlook
3rd Party Bloatware:
There are apps on Galaxy M21s, which are not necessary at all times. It could be beneficial for some, but not for all people. Moreover, anyone can download these apps from the App store. So, there’s no point in pre-installing the following apps.
- Samsung Members
- Samsung Notes
- My Galaxy
- Samsung Global Goals
- Samsung Max
- Samsung shop
Infuriating disclosure by Samsung:
Samsung is the king of bloatware. These extra and redundant apps severely limit the performance of the galaxy M21s. However, Samsung denies taking any responsibility for performance issues caused by all the third-party apps they pre-install on their phone. To learn more, please read the user manual that comes with this phone.
M21s is not suitable for gaming:
The Galaxy M21s performs poorly while playing games. Though this phone comes with a software feature named “Game Booster,” this phone can’t run process-intensive games smoothly.
This M21s has a plastic back. So, it does not feel premium at all. Moreover, a plastic back will chip its paint after a few years. At that point, this phone will look very ugly. However, if you use a phone case, you can avoid this issue.
No Extended Software Update:
Apple provides software updates to all of its iPhones for up to 60 months. They never abandon their phones. But Samsung stops giving any software update after only 24 months of release. It only applies to flagship phones. The Galaxy M21s is not a flagship phone. Therefore, Samsung would not provide any software updates after 12 months. We know this fact from our experience.
Only 4GB or 6GB RAM:
The Samsung Galaxy M21s comes with either 4GB or 6GB RAM. We consider it a disadvantage because 4GB or 6GB RAM is not enough for the Android OS with One UI 2.0 and with all those bloatware pre-installed. While new, your phone will open apps blazing fast; however, this RAM would choke to run different apps after a few years.
Samsung is terrible at software. Bixby is the prime example. Most of the time, it does not work. Moreover, Android Assistant is far superior to Bixby. Still, Samsung ships this unnecessary software with every phone.
Samsung Phones Don’t Last Long:
We all know that Samsung phones don’t last long. A new Galaxy M21s will operate smoothly. But after only a few years, this M21s will become very slow and laggy.
Samsung phones have a low resale value:
We know that no one sells their used phone. However, if you need to sell your phone, iPhones have a better resale value than Samsung phones.
Frequently Asked Questions.
Does the Samsung M21s come with a headphone?
No, Samsung does not provide a headphone in the Galaxy M21s box.
How to activate Developer Mode in Galaxy M21s?
You need to enable the “Developer options” before developing apps and testing on the M21s. To activate it, go to “Settings” then click on “About phone.” Now, click on the “Build number” 7 times to enable “Developer options.” Once activated, the option will appear in the “Settings” main menu.
How to force restart Galaxy M21s?
If your M21s is frozen and unresponsive, press and hold the Side key and the Volume Down key simultaneously for more than 7 seconds to restart your phone.
In short, Galaxy M21s’s pros and cons:
|M21s is cheap, priced only at $275.||No headphones in the box.|
|1080 x 2340 Super AMOLED display.||No wireless charging.|
|Expandable storage up to 512 GB.||Not water or dust resistant.|
|Fingerprint sensor.||No Dex support|
|Dual Nano-SIM support.||Poor Quality camera. Records bad 4K video.|
|Has MHL support.||Non-removable battery.|
|3.5 mm headphone jack.||No NFC support.|
|FM Radio.||Samsung Bloatware, and duplicate apps.|
|M21s is Knox Secured phone.||This Phone becomes hot.|
|Dolby Atmos.||No extended OS update.|
|Samsung Find my mobile feature.||No eSIM.|
|No ANT+ Support.|
The Galaxy M21s is a low priced, decent phone. However, the disadvantages of this phone are more than its advantages. Therefore, we think this phone is not worth it.