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Samsung

Samsung Galaxy S21 5G EX (2021)

Android OS v11.0
Exynos 2100
Mali-G78 MP14
8 GB / 128 GB
6.2 inch (1080 x 2400 px)
12 + 64 + 12 MP, 4032 x 3024 px, autofocus, optical image stabilization

The manufacturer offers this phone with a 6.2 inch AMOLED display, a Exynos 2100 SoC, and 8 GB of RAM.

Unravel its secrets, both the highs and lows!

Table of Contents

This article shares our personal experiences and thoughts about using the Samsung Galaxy S21 5G EX smartphone. We hope to offer helpful insights to others interested in this device.

Samsung Galaxy S21 5G EX / 1

Samsung Galaxy S21 5G EX specifications

BrandSamsung
NameGalaxy S21 5G EX
ModelSM-G991B
Release date2021

Weight, dimensions, colors

Weight5.96 oz
Dimensions5.97 x 2.8 x 0.31 inch
Colorsblue, gray, pink, violet
SIM typeNano SIM

The weight of Samsung Galaxy S21 5G EX is about 5.96 oz with battery. This is average for smartphones of the same size. Smartphones use a Nano SIM as a small chipcard for a subscriber identity module (SIM).

Samsung Galaxy S21 5G EX / 1

System, chipset, performance

OS versionAndroid OS v11.0
SoCExynos 2100
CPUOcta-core, Singe-core 2.84 GHz Cortex-X1, Triple-core 2.4 Ghz Cortex-A78, Quad-core 1.8 Ghz Cortex-A55
GPUMali-G78 MP14

The Samsung Galaxy S21 5G EX comes with Android OS v11.0 out of the box. Android is a mobile operating system. Google built it using a modified version of the Linux kernel. They also used other open-source software. It's a powerful Exynos 2100 octa-core processor. It can handle complex tasks and run many applications. Many mobile devices use ARM Mali GPUs. They are well known for their good performance and power efficiency.

Samsung Galaxy S21 5G EX / 2

Display type, size, resolution

Display typeAMOLED
Screen size6.2 inch
Resolution1080 x 2400 px
Multitouch supportyes

The 6.2 inch phone comes with AMOLED display. Smartphones use the AMOLED, which is a type of OLED display. The 6.2 inch display should be big enough for our needs. It will make viewing comfortable. This is true whether we're reading, browsing, or watching. The size of the screen is measured diagonally, from corner to corner.

Samsung Galaxy S21 5G EX / 3

Memory, storage

RAM8 GB
Internal storage128 GB
Memory card slotno

The 8 GB of RAM on the Samsung Galaxy S21 5G EX should be more than enough to handle their daily needs without any major issues. More RAM lets us keep more apps and processes open in the background. This keeps the device from slowing down. The Galaxy S21 5G EX has 128 GB of internal storage, which is more than enough for their needs. The internal storage of the Samsung Galaxy S21 5G EX (8 GB) cannot be expanded.

Cameras, flash

Main camera12 + 64 + 12 MP, 4032 x 3024 px, autofocus, optical image stabilization
FlashLED
Selfie camera10 MP

Using multiple cameras has advantages. They provide more versatility and creative possibilities. They let us capture a wider range of subjects. The main camera of Galaxy S21 5G EX has optical image stabilization (OIS). It counters camera shake.

Connectivity, network, wireless

GSM 2G bands850 / 900 / 1800 / 1900
Network coverage2G / 3G / 4G / 5G
Wi-FiWi-Fi 802.11 a/b/g/n/ac
Bluetoothv5.0, A2DP
GPSA-GPS, GLONASS
NFCyes
FM radioyes
USBUSB Type-C
Headphoneno

The designers of the 5G network aim to increase speed. They also want to reduce delay and improve flexibility of wireless services. This phone like all modern smartphones, is capable of connecting to Wi-Fi networks. The Galaxy S21 5G EX smartphone is capable of connecting to Bluetooth devices. This phone has a built-in GPS. The Galaxy S21 5G EX comes with NFC (Near Field Communication) functionality. The Galaxy S21 5G EX smartphone does not have 3.5 mm headphone jack.

Battery type, capacity, charger

TypeLi-Po 4000 mAh, non-removable

The Li-Po 4000 mAh, non-removable battery gives the smartphone a good battery backup. The lithium polymer (Li-Po) battery is a light-weight, rechargeable battery. The battery of Galaxy S21 5G EX isn't removable without voiding the warranty.

Features, sensors, specials

Sensorsaccelerometer, barometer, compass, fingerprint, geomagnetic, gyroscope, hall, light, proximity
SpecialsCertified IP68 dustproof and waterproof, Corning Gorilla Glass 6, Dual SIM, Fast charging, Wireless charging

Today, smartphones come with many sensors. They help make the user experience better. The accelerometer is a sensor. It measures the tilting motion and orientation of the phone. The Galaxy S21 5G EX phone has a fingerprint scanner. The light sensor detects the level of light in the environment. Dual SIM is great for businesses. They want to give staff a device with separate numbers and bills for personal and business use.

The Galaxy S21 5G EX is safe and durable. It's IP68-rated, so it's dustproof and waterproof. It's built for outdoor use. The fast charging technology comes in handy when we need quick juice on our device. Wireless charging uses an electromagnetic field. It transfers energy between two objects through electromagnetic induction. Corning Gorilla Glass is tougher. It resists scratches, impacts, and drops.

Verdict, pros and cons

Every phone has its strengths and weaknesses, and this Samsung phone is no exception. As with any device, there are aspects that shine and others that fall short. By examining both sides, we can paint a complete picture of what this phone has to offer. Let's explore its standout features and areas for improvement. Remember, this is just my opinion, and yours might be different.

Pros

  • AMOLED display
  • appropriate screen size
  • generous memory
  • generous internal storage
  • multicamera setup
  • optical image stabilization (OIS)
  • 5G support
  • Dual SIM support
  • IP68 certified protection
  • wireless charging
  • Corning Gorilla Glass shield

Cons

  • non-expandable storage
  • no headphone jack
  • low-capacity battery
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Lucas Bradley I'm Lucas Bradley, the founder of the Phone42.com site. I love technology, especially smartphones, and I've been working with tech stuff for more than 20 years. This means I've seen a lot of changes and have learned a bunch about what makes a good phone. On Phone42.com, I look at all kinds of phones. They can be from big, well-known companies or new ones trying to make their mark. I want to help people understand what's new and cool in the world of smartphones, in a way that's easy to get.
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