Home Phone comparison Xiaomi 12 and Samsung Galaxy A21s - Which is better?

Xiaomi 12 vs Samsung Galaxy A21s

65 out 100
Xiaomi 12
VS
39 out 100
Samsung Galaxy A21s
Xiaomi 12
Samsung Galaxy A21s

Compared 2 smartphones : Xiaomi 12 Manufactured in December, 2021, with display 6.28 with chipsetQualcomm Snapdragon 8 Gen 1, vs Samsung Galaxy A21s, Manufactured in June, 2020 with chipsetSamsung Exynos 850. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi 12
  • Higher pixel density: 419ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 180g vs 192g
  • Newer Bluetooth version: 5.2 vs 5
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy A21s
  • Larger display: 6.5in
  • Higher battery capacity: 5000mAh vs 4500mAh

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB		 - 2/32 GB
- 3/32 GB
- 3/64 GB
- 3/128 GB
- 4/32 GB
- 4/64 GB
- 4/128 GB
- 6/64 GB
- 6/128 GB

Review

Key Specs Xiaomi 12 and Samsung Galaxy A21s
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi 12
vs
Samsung Galaxy A21s

Display

Display quality comparison
Type AMOLED PLS TFT
Size 6.28 in 6.5 in
Resolution 1080x2400 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 419 ppi 270 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes (60-120 Hz) No
Max brightness 500 nits 540 nits
HDR support Yes HDR10+ No
Touch Sampling Rate 480 Hz n/a
Screen-to-body ratio 89.3 % 82.9 %
Features - DCI-P3
- Always-On Display
- DC dimming		 n/a
Display test
Peak brightness (auto)
Xiaomi 12
887 nits
Samsung Galaxy A21s
487 nits
sRGB gamutn/a88.4 %
PWM (Flicker)n/a500 Hz
Response timen/a30.4 ms
Contrastn/a1500:1
Sources: NotebookCheck [Samsung Galaxy A21s]

Design & Build

Design and ergonomics comparison
Height 152.7 mm (6.01 in) 163.6 mm (6.44 in)
Width 69.9 mm (2.75 in) 75.3 mm (2.96 in)
Thickness 8.16 mm (0.32 in) 8.9 mm (0.35 in)
Weight 180 g (6.35 oz) 192 g (6.77 oz)
Water resistance No No
Back panel Glass Plastic
Frame Metal Plastic
Colors - Black
- Blue
- Pink		 - Black
- Blue
- Red
Fingerprint sensor Yes In-Display Yes rear
Screen-to-body ratio
Xiaomi 12
89.3 %
Samsung Galaxy A21s
82.9 %

Performance

Testing Xiaomi 12 and Samsung Galaxy A21s In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 1 Samsung Exynos 850
Max Frequency 3000 MHz 2000 MHz
CPU Cores 8 (1 + 3 + 4) 8 (8)
Architecture - 4/1.8 (Cortex-A510)
- 3/2.5 (Cortex-A710)
- 1/3 (Cortex-X2)		 8/2 (Cortex-A55)
Process Samsung Samsung
Transistor Size 4 nm 8 nm
Neural Processor Hexagon No
Graphics Adreno 730 Mali-G52 MP1
GPU Cores 1024 24
GPU Frequency 818 MHz 850 MHz
FLOPS 1675.3 GFLOPS 40.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12
1702
Samsung Galaxy A21s
484
Geekbench 6 (Multi-Core)
Xiaomi 12
3977
Samsung Galaxy A21s
1523
Geekbench 6 (Single-Core)1702484
Geekbench 6 (Multi-Core)39771523
Sources: Geekbench v6 [Xiaomi 12]
AnTuTu 10
AnTuTu 10
Xiaomi 12
1187033
Samsung Galaxy A21s
191375
CPU30802568748
GPU43906626807
Memory23764559210
UX21229736610
NanoReview Score1187033191375
3DMark Wild Life
3DMark Wild Life
Xiaomi 12
8751
Samsung Galaxy A21s
425
Max Surface Temp.n/a43.2 °C
Stability60 %98 %
Graphics Test52 fps2 fps
Graphics Score8751425
Sources: 3DMark [Xiaomi 12], [Samsung Galaxy A21s]
PCMark 3.0
PCMark 3.0
Xiaomi 12
12987
Samsung Galaxy A21s
5429
Writing score148405426
Web score115344708
Video editing74525145
Data manipulation96433808
NanoReview Score129875429

Memory

RAM
RAM Size - 8 GB
- 12 GB		 - 3 GB
- 4 GB
Memory Type LPDDR5 LPDDR4X
Memory Frequency 3200 MHz 1866 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB		- 32 GB
- 64 GB
Storage TypeUFS 3.1eMMC 5.1
Memory CardNoMicroSD

Software

OS Android 12 (Upgradeable to Android 14) Android 10 (Upgradeable to Android 12)
OS Size n/a 12 GB
UI Skin HyperOS 1.0 One UI 4.1

Battery

Volume 4500 mAh 5000 mAh
Max Charging Power 67 W 15 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (87% in 30 min) Yes (50% in 60 min)
Full Charge Time 0:46 h 2:10 h
Battery Life Test
Battery Life
Xiaomi 12
15:58
Samsung Galaxy A21s
25:00
Web Browsing06:17 h09:45 h
Video Playback10:46 h14:13 h
Games04:42 h05:34 h
Standby Mode71 h128 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8192x6144 pixels 8000x6000 pixels
Zoom Digital Digital
Flash Dual LED LED
Stabilization Optical Digital
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 1920 fps (720p) No
Wide-angle lens 123 ° 123 °
Lenses count Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP		 Standard: 48 MP
Ultra-wide: 8 MP
Macro: 2 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 Bokeh effect
Main lens
Matrix50 MP48 MP
Aperturef/1.9f/2.0
Focal length26 mm26 mm
SensorSony IMX766Samsung S5KGM2
Sensor size1/1.561/2.0
Pixel size1 μm0.8 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix13 MP8 MP
Aperturef/2.4f/2.2
Focal length12 mmn/a
SensorOmniVision OV13B10n/a
Sensor size1/3.061/4.0
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12
118
Samsung Galaxy A21s
n/a
Video quality
Xiaomi 12
121
Samsung Galaxy A21s
n/a
Overall camera score
Xiaomi 12
113
Samsung Galaxy A21s
n/a
Bokeh55n/a
Preview69n/a
Zoom72n/a
Sources: DxOMark [Xiaomi 12]

Front camera

Matrix 32 MP 13 MP
Photo resolution 6528x4896 pixels 4128x3096 pixels
Aperture f/2.4 f/2.2
Focal length 26 mm n/a
Sensor OmniVision OV32B40 CMOS
Sensor size n/a 1/3.1
Pixel size 0.7 μm 1.12 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2 5
Bluetooth features LE PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 900 1800 1900 MHzGSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA B1/2/4/5/6/8/19B1 (2100), B2 (1900), B5(850), B8 (900)
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B66)LTE (B1/B2/B3/B5/B7/B8/B20/B28)
LTE category2013
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 12
n/a
Samsung Galaxy A21s
79.5 dB

Other

Class Flagship Budget
Announced December, 2021 yr May, 2020 yr
Release Date December, 2021 yr June, 2020 yr
Launch Price ($) 580 200
Sensors - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 12 the clear winner in this comparison.

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