Samsung Galaxy A21s vs Galaxy J3(2017)
Specs compared side by side, measured on real phones shared by owners with the Device Info app.
Key differences
- 1Chipset: the Galaxy A21s uses the Exynos 850 (8 nm), the Galaxy J3(2017) the Exynos 7570 (14 nm). The Galaxy A21s's fastest core runs at 2.00 GHz, the Galaxy J3(2017)'s at 1.43 GHz.
- 2Screen: 6.6 inches on the Galaxy A21s, 5 inches on the Galaxy J3(2017). Both run at up to 60 Hz.
- 3Battery: 4,900 mAh on the Galaxy A21s, 2,400 mAh on the Galaxy J3(2017).
- 4Main camera: 12 MP on the Galaxy A21s, 12.9 MP on the Galaxy J3(2017).
Chipset
Chipset
Exynos 850Exynos 7570Process
8 nm14 nm
CPU
4× 2.00 GHz Cortex-A55
4× 2.00 GHz Cortex-A554× 1.43 GHz Cortex-A53
4× 2.00 GHz Cortex-A554× 1.43 GHz Cortex-A53
Top CPU speed
2.00 GHz1.43 GHz
CPU cores
84
GPU
Mali-G52Mali-T720
Memory
Versions seen
3GB | 32GB
4GB | 64GB2GB | 16GB
4GB | 64GB2GB | 16GB
RAM type
LPDDR4XLPDDR3
Display
Size
6.6 in5 in
Resolution
720 × 1600720 × 1280
Pixel density
267 ppi295 ppi
Refresh rates
60 Hz60 Hz
Battery
Capacity
4,900 mAh2,400 mAh
Cameras
Back camera 1
12 MP4000 × 3000 · f/2 · 4.6 mm · OIS12.9 MP4144 × 3106 · f/1.9 · 4.3 mm
Back camera 2
8 MP3264 × 2448 · f/2.2 · 1.42 mm—
Front camera 1
12.8 MP4128 × 3096 · f/2.2 · 3.39 mm · OIS5 MP2576 × 1932 · f/2.4 · 1.86 mm
Front camera 2
8.7 MP3408 × 2556 · f/2.2 · 3.39 mm · OIS—
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
No—
NFC
YesNo
UWB
NoNo
USB host
YesYes
Software
Android
Android 12Android 9
UI
One UI 4.1—
Released with
Android 10Android 7.0
Widevine DRM
L1L3
Sensors
Sensors
27 sensors4 sensors
These two phones have the same specs in every row.
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