Engineering:Samsung Galaxy A21s

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Short description: Mid-range Android smartphone from Samsung
Samsung Galaxy A21
Samsung Galaxy A21s
The Samsung Galaxy A21s
BrandSamsung
ManufacturerSamsung Electronics
SeriesSamsung Galaxy A series
Model
  • SM-A217F/DS (Global)
  • SM-A217F/DSN (Russia)
First released14 May 2020; 5 years ago (2020-05-14)
Availability by regionJune 2, 2020 (2020-06-02)
PredecessorSamsung Galaxy A20
Samsung Galaxy A20s
SuccessorSamsung Galaxy A22
Samsung Galaxy A22 5G
RelatedSamsung Galaxy A21
Samsung Galaxy A30s
TypePLS TFT capacitive touchscreen, 16M colors
Dimensions163.7 mm (6.44 in) H
75.3 mm (2.96 in) W
8.9 mm (0.35 in) D
Mass192 g (6.8 oz)
Operating systemOriginal: Android 10 with One UI Core 2.1
Current: Android 12 with One UI Core 4.1
System on chipExynos 850 (8 nm)
CPUOcta-core
(4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
GPUMali-G52
Memory3/4/6GB RAM
Storage32/64/128GB
Removable storagemicroSDXC
BatteryNon-removable 5000 mAh Lithium polymer
Charging15W Fast Charging
Display6.5 in (17 cm)LED HD+ 720 x 1600 pixels, 20:9 ratio (~270 ppi density)
External displayPLS TFT capacitive touchscreen, 16M colors
Rear camera
  • Primary: Samsung ISOCELL S5KGM2; 48 MP, f/2.0, 26mm, 1/2.0", 0.8µm, PDAF
  • Ultrawide: Samsung ISOCELL S5K4HA; 8 MP, f/2.2, 13mm, 123˚, 1/4.0", 1.12µm
  • Macro: GalaxyCore GC02M1; 2 MP, f/2.4, 1/5.0", 1.75µm
  • Depth: GalaxyCore GC02M1B; 2 MP, f/2.4, 1/5.0", 1.75µm
  • LED flash, panorama, HDR
  • 1080p@30fps
Front camera
  • Hynix Hi-1336; 13 MP, f/2.2, 25mm (wide), 1/3.1", 1.12µm
  • 1080p@30fps
SoundLoudspeaker, 3.5mm auxiliary
ConnectivityWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot, Bluetooth 5.0
OtherFingerprint sensor (rear-mounted), accelerometer, gyro, proximity, compass
SAR
  • 0.42 W/kg (head)
  • 1.54 W/kg (body)
Websitewww.samsung.com/levant/smartphones/galaxy-a21s-a217/SM-A217FZKGMID/
References[1][2]

The Samsung Galaxy A21 is a mid-range Android smartphones designed, developed, marketed, and manufactured by Samsung Electronics as part of its Galaxy A series.

Two models were released: the base model (simply known as the Galaxy A21) and the Galaxy A21s. The former was announced on April 8, 2020 and released exclusively for North American markets,[3] while the latter was announced on May 15, 2020 for the rest of the world.[4]

The two devices serve as successors to the Samsung Galaxy A20 and the Samsung Galaxy A20s.

Specifications

Design

While both devices share nearly the same build (glass front and plastic frame and back), the back design differs between the two devices. The base variant featured a plain back design, while the "s" variant featured a crystal-like pattern.

Galaxy A21 Galaxy A21s

Hardware

Display

Both variants have the same 6.5" PLS TFT LCD Infinity O display with HD+ 720 x 1600 resolution, 20:9 aspect ratio, ~270 ppi density.[5][6]

Cameras

Both devices have a quad rear camera setup, but each features a different layout. The base variant had a vertically arrange camera setup located in the upper left corner,[5] while the "s" variant is arranged in an "L" shape located in the corner with a rectangular protrusion.[6]

The setup consists of a 16 MP (for the base variant) or 48 MP ("s" variant) wide angle camera, an 8 MP ultrawide camera, a 2 MP macro camera, and a 2 MP depth sensor.[7] It also has a single 13 MP front facing camera, which sits in a small punch hole on the front of the screen. The rear facing cameras can record video up to 1080p in 30 fps. The front cameras can shoot 1080p at 30 fps.

Processor and Memory

The base variant is powered by the MediaTek Helio P35 cta-core SoC (System on a chip) and only sold in 3GB of RAM and 32GB of internal storage, which can be expanded via a microSD card of up to 512GB.[5]

The "s" variant is powered by Exynos 850 octa-core SoC (System on a chip) and comes with RAM ranging from 3 GB to 6 GB as well as 32GB or 64GB internal storage, which can be expanded via a microSD card of up to 512GB.[6]

Battery

It comes with a non-removable 5000mAh lithium polymer battery which charges with a 15W Fast Charger.

Software

Both devices originally came with Android 10 and One UI Core 2.1. It is promised to have at least two OS upgrades and 4 years of security updates.

Pre-installed OS OS Upgrades history End of support
1st 2nd
A21 Android 10
(One UI Core 2.1) 		Android 11
(One UI Core 3.1)
October 2021[8] 		Android 12
(One UI Core 4.1)
September 2022[9] 		August 2024[10]
A21s Android 11
(One UI Core 3.0)
March 2021[11] 		Android 12
(One UI Core 4.1)
July 2022[12] 		July 2024[13]

References

  1. ↑ "Samsung Galaxy A21s". https://www.gsmarena.com/samsung_galaxy_a21s-10239.php. 
  2. ↑ "Samsung Announces New Galaxy A21s" (in en). https://news.samsung.com/uk/samsung-adds-the-new-galaxy-a21s-to-the-galaxy-a-family. 
  3. ↑ "2020 Samsung Galaxy A series coming to US (Update: Galaxy A21 is here)" (in en). 2020-04-08. https://www.androidauthority.com/samsung-galaxy-a-5g-us-1103987/. 
  4. ↑ Michail (2020-05-15). "Samsung Galaxy A21s now official" (in en-US). https://www.gsmarena.com/samsung_galaxy_a21s_now_official-news-43222.php. 
  5. ↑ 5.0 5.1 5.2 Kerns, Taylor (2020-08-10). "Samsung Galaxy A21 review: Large device, small price" (in en). https://www.androidpolice.com/2020/08/15/samsung-galaxy-a21-review/. 
  6. ↑ 6.0 6.1 6.2 "Samsung Galaxy A21s review" (in en-US). 2020-08-03. https://www.gsmarena.com/samsung_galaxy_a21s-review-2142.php. 
  7. ↑ "Galaxy A21s" (in en). https://www.samsungmobilepress.com/mediaresources/galaxy_a21s. 
  8. ↑ Matei, Mihai (2021-10-14). "Android 11 and One UI 3.1 update is finally live for Galaxy A21 in USA" (in en-US). https://www.sammobile.com/news/android-11-one-ui-3-1-update-finally-live-galaxy-a21-usa/. 
  9. ↑ Shaik, Asif Iqbal (2022-09-26). "Galaxy A21 gets Android 12 and One UI Core 4.1 update in the US" (in en-US). https://www.sammobile.com/news/galaxy-a21-android-12-update-one-ui-core-4-1-usa/. 
  10. ↑ "Samsung Galaxy A21 software support end" (in en-US). 2024-08-07. https://samlover.com/2024/08/07/samsung-galaxy-a21-software-support-end/. 
  11. ↑ Matei, Mihai (2021-03-29). "The One UI 3 update is now landing on the Galaxy A21s two months early" (in en-US). https://www.sammobile.com/news/the-one-ui-3-update-is-now-landing-on-the-galaxy-a21s-two-months-early/. 
  12. ↑ Shaik, Asif Iqbal (2022-07-05). "Galaxy A21s gets the taste of Android 12 and One UI 4.1" (in en-US). https://www.sammobile.com/news/galaxy-a21s-android-12-update-one-ui-4-1/. 
  13. ↑ Shaik, Abid Iqbal (2024-07-04). "Bad news for Galaxy A21s users: No more software updates" (in en-US). https://www.sammobile.com/news/samsung-ends-software-support-galaxy-a21s/. 



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