Samsung Galaxy A21s vs Galaxy S10

Specs compared side by side, measured on real phones shared by owners with the Device Info app.

Samsung Galaxy A21sExynos 850Change
Samsung Galaxy S10Snapdragon 855Change

Key differences

  1. Chipset: the Galaxy A21s uses the Exynos 850 (8 nm), the Galaxy S10 the Snapdragon 855 (7 nm TSMC). The Galaxy A21s's fastest core runs at 2.00 GHz, the Galaxy S10's at 2.84 GHz.
  2. Screen: 6.6 inches on the Galaxy A21s, 12.2 inches on the Galaxy S10. Both run at up to 60 Hz.
  3. Battery: 4,900 mAh on the Galaxy A21s, 3,300 mAh on the Galaxy S10.
  4. Main camera: 12 MP on the Galaxy A21s, 15.9 MP on the Galaxy S10.

The same on both: Android 12 with One UI 4.1 and Widevine L1.

Chipset

Chipset
Exynos 850Snapdragon 855
Process
8 nm7 nm TSMC
CPU
4× 2.00 GHz Cortex-A55
4× 2.00 GHz Cortex-A551× 2.84 GHz Kryo 485
3× 2.42 GHz Kryo 485
4× 1.79 GHz Kryo 485
Top CPU speed
2.00 GHz2.84 GHz
CPU cores
88
GPU
Mali-G52Adreno 640

Memory

Versions seen
4GB | 64GB8GB | 128GB
RAM type
LPDDR4XLPDDR4X

Display

Size
6.6 in12.2 in
Resolution
720 × 16001440 × 3040
Pixel density
267 ppi276 ppi
Refresh rates
60 Hz60 Hz
HDR
—HDR10, HDR10+, HLG

Battery

Capacity
4,900 mAh3,300 mAh

Cameras

Back camera 1
12 MP4000 × 3000 · f/2 · 4.6 mm · OIS15.9 MP4608 × 3456 · f/2.2 · 1.8 mm
Back camera 2
8 MP3264 × 2448 · f/2.2 · 1.42 mm12.2 MP4032 × 3024 · f/1.5 · 4.3 mm · OIS
Front camera 1
12.8 MP4128 × 3096 · f/2.2 · 3.39 mm · OIS10 MP3648 × 2736 · f/1.9 · 3.3 mm
Front camera 2
8.7 MP3408 × 2556 · f/2.2 · 3.39 mm · OIS7.1 MP3216 × 2208 · f/2.2 · 3.25 mm

Megapixels are what Android reports to apps. Many phones combine pixels by default, so the advertised megapixels can be higher.

Connectivity

Wi-Fi
Wi-Fi 6—
6 GHz Wi-Fi
NoNo
NFC
NoYes
UWB
NoNo
USB host
YesYes

Software

Android
Android 12Android 12
UI
One UI 4.1One UI 4.1
Released with
Android 10Android 9
Widevine DRM
L1L1

Sensors

Sensors
28 sensors53 sensors
Galaxy A21s full specs Galaxy S10 full specs

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From phones shared with the Device Info app · updated October 2026 Hardware specs only. No personal data. Privacy