Samsung Galaxy A21s vs Galaxy Note20 Ultra 5G

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

Samsung Galaxy A21sExynos 850Change
Samsung Galaxy Note20 Ultra 5GSnapdragon 865 5G+Change

Key differences

  1. Chipset: the Galaxy A21s uses the Exynos 850 (8 nm), the Galaxy Note20 Ultra 5G the Snapdragon 865 5G+ (7 nm). The Galaxy A21s's fastest core runs at 2.00 GHz, the Galaxy Note20 Ultra 5G's at 3.09 GHz.
  2. Screen: 6.6 inches on the Galaxy A21s, 6.9 inches on the Galaxy Note20 Ultra 5G. Both run at up to 60 Hz.
  3. Battery: 4,900 mAh on the Galaxy A21s, 4,370 mAh on the Galaxy Note20 Ultra 5G.
  4. Versions: owners have shared the Galaxy A21s as 4GB | 64GB, the Galaxy Note20 Ultra 5G as 12GB | 128GB.

The same on both: Widevine L1.

Chipset

Chipset
Exynos 850Snapdragon 865 5G+
Process
8 nm7 nm
CPU
4× 2.00 GHz Cortex-A55
4× 2.00 GHz Cortex-A551× 3.09 GHz Kryo 585
3× 2.42 GHz Kryo 585
4× 1.80 GHz Kryo 585
Top CPU speed
2.00 GHz3.09 GHz
CPU cores
88
GPU
Mali-G52Adreno 650

Memory

Versions seen
4GB | 64GB12GB | 128GB
RAM type
LPDDR4XLPDDR5

Display

Size
6.6 in6.9 in
Resolution
720 × 16001440 × 3088
Pixel density
267 ppi496 ppi
Refresh rates
60 Hz60 Hz
HDR
—HDR10, HDR10+, HLG

Battery

Capacity
4,900 mAh4,370 mAh

Cameras

Back camera 1
12 MP4000 × 3000 · f/2 · 4.6 mm · OIS12 MP4000 × 3000 · f/1.8 · 7 mm · OIS
Back camera 2
8 MP3264 × 2448 · f/2.2 · 1.42 mm12 MP4000 × 3000 · f/2.2 · 2.2 mm
Front camera 1
12.8 MP4128 × 3096 · f/2.2 · 3.39 mm · OIS10 MP3648 × 2736 · f/2.2 · 3.3 mm
Front camera 2
8.7 MP3408 × 2556 · f/2.2 · 3.39 mm · OIS7.1 MP3216 × 2208 · f/2.2 · 3.3 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
Bluetooth LE Audio
—No
NFC
NoYes
UWB
NoYes
USB host
YesYes

Software

Android
Android 12Android 13
UI
One UI 4.1One UI 5.1
Released with
Android 10Android 10
Widevine DRM
L1L1

Sensors

Sensors
28 sensors41 sensors
Galaxy A21s full specs Galaxy Note20 Ultra 5G full specs

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