Home Phone comparison Samsung Galaxy A21s and Xiaomi Redmi 15C 4G - Which is better?

Samsung Galaxy A21s vs Xiaomi Redmi 15C 4G

39 out 100
Samsung Galaxy A21s
VS
56 out 100
Xiaomi Redmi 15C 4G
Samsung Galaxy A21s
Xiaomi Redmi 15C 4G

Compared 2 smartphones : Samsung Galaxy A21s Manufactured in June, 2020, with display 6.5 with chipsetSamsung Exynos 850, vs Xiaomi Redmi 15C 4G, Manufactured in August, 2025 with chipsetMediaTek Helio G81 Ultra. 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 Samsung Galaxy A21s
  • Higher pixel density: 270ppi
  • Lighter design: 192g vs 205g
  • Supports Dolby Atmos
Reasons to choose Xiaomi Redmi 15C 4G
  • Larger display: 6.9in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 6000mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 5

Versions

Available versions and configurations
Memory Options - 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		 - 4/128 GB
- 4/256 GB

Review

Key Specs Samsung Galaxy A21s and Xiaomi Redmi 15C 4G
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:
Samsung Galaxy A21s
vs
Xiaomi Redmi 15C 4G

Display

Display quality comparison
Type PLS TFT IPS LCD
Size 6.5 in 6.9 in
Resolution 720x1600 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 270 ppi 254 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 540 nits n/a
HDR support No No
Screen-to-body ratio 82.9 % 84.2 %
Display test
Peak brightness (auto)
Samsung Galaxy A21s
487 nits
Xiaomi Redmi 15C 4G
n/a
sRGB gamut88.4 %n/a
PWM (Flicker)500 Hzn/a
Response time30.4 msn/a
Contrast1500:1n/a
Sources: NotebookCheck [Samsung Galaxy A21s]

Design & Build

Design and ergonomics comparison
Height 163.6 mm (6.44 in) 171.6 mm (6.76 in)
Width 75.3 mm (2.96 in) 79.5 mm (3.13 in)
Thickness 8.9 mm (0.35 in) 8 mm (0.31 in)
Weight 192 g (6.77 oz) 205 g (7.23 oz)
Water resistance No IP64
Back panel Plastic Eco Leather
Frame Plastic Plastic
Colors - Black
- Blue
- Red		 - Gray
- Blue
- Green
- Orange
Fingerprint sensor Yes rear Yes, In-Button
Screen-to-body ratio
Samsung Galaxy A21s
82.9 %
Xiaomi Redmi 15C 4G
84.2 %

Performance

Testing Samsung Galaxy A21s and Xiaomi Redmi 15C 4G In benchmarks
Processor
Chipset Samsung Exynos 850 MediaTek Helio G81 Ultra
Max Frequency 2000 MHz 2000 MHz
CPU Cores 8 (8) 8 (2 + 6)
Architecture 8/2 (Cortex-A55) - 6/1.7 (Cortex-A55)
- 2/2 (Cortex-A75)
Process Samsung TSMC
Transistor Size 8 nm 12 nm
Neural Processor No Yes
Graphics Mali-G52 MP1 Mali-G52 MP2
GPU Cores 24 48
GPU Frequency 850 MHz 820 MHz
FLOPS 40.8 GFLOPS 78.7 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A21s
484
Xiaomi Redmi 15C 4G
421
Geekbench 6 (Multi-Core)
Samsung Galaxy A21s
1523
Xiaomi Redmi 15C 4G
1387
Geekbench 6 (Single-Core)484421
Geekbench 6 (Multi-Core)15231387
AnTuTu 10
AnTuTu 10
Samsung Galaxy A21s
191375
Xiaomi Redmi 15C 4G
278312
CPU6874884872
GPU2680735457
Memory5921074922
UX3661083061
NanoReview Score191375278312
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A21s
425
Xiaomi Redmi 15C 4G
n/a
Max Surface Temp.43.2 °Cn/a
Stability98 %n/a
Graphics Test2 fpsn/a
Graphics Score425n/a
Sources: 3DMark [Samsung Galaxy A21s]
PCMark 3.0
PCMark 3.0
Samsung Galaxy A21s
5429
Xiaomi Redmi 15C 4G
n/a
Writing score5426n/a
Web score4708n/a
Video editing5145n/a
Data manipulation3808n/a
NanoReview Score5429n/a

Memory

RAM
RAM Size - 3 GB
- 4 GB		 4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1866 MHz 1800 MHz
Channels 2 2
Storage
Storage Capacity- 32 GB
- 64 GB		128 GB
Storage TypeeMMC 5.1eMMC 5.1
Memory CardMicroSDMicroSD

Software

OS Android 10 (Upgradeable to Android 12) Android 15
OS Size 12 GB n/a
UI Skin One UI 4.1 HyperOS 2.0

Battery

Volume 5000 mAh 6000 mAh
Max Charging Power 15 W 33 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 60 min) Yes
Full Charge Time 2:10 h n/a
Battery Life Test
Battery Life
Samsung Galaxy A21s
25:00
Xiaomi Redmi 15C 4G
n/a
Web Browsing09:45 hn/a
Video Playback14:13 hn/a
Games05:34 hn/a
Standby Mode128 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8160x6144 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Slow Motion No n/a
Wide-angle lens 123 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 2 MP
Depth: 2 MP		 Standard: 50 MP
Depth
Features Bokeh effect - Bokeh effect
- Pro mode
Main lens
Matrix48 MP50 MP
Aperturef/2.0f/1.8
Focal length26 mm28 mm
SensorSamsung S5KGM2n/a
Sensor size1/2.01/2
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 13 MP 8 MP
Photo resolution 4128x3096 pixels n/a
Aperture f/2.2 f/2.0
Sensor CMOS CMOS
Sensor size 1/3.1 1/4.0
Pixel size 1.12 μm 1.12 μm
Autofocus No No
Stabilization Digital No
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.4
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Varies by region
Infrared Port No No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM850, GSM900, DCS1800, PCS1900n/a
3G BandsB1 (2100), B2 (1900), B5(850), B8 (900)n/a
LTE Bands*LTE (B1/B2/B3/B5/B7/B8/B20/B28)n/a
LTE category13n/a
5G SupportNoNo

Sound

Speakers Mono n/a
3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos Yes No
Speaker Test
Max Volume
Samsung Galaxy A21s
79.5 dB
Xiaomi Redmi 15C 4G
n/a

Other

Class Budget Budget
Announced May, 2020 yr August, 2025 yr
Release Date June, 2020 yr August, 2025 yr
Launch Price ($) 200 n/a
MSRP ($) n/a 120
Sensors - Hall Sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi 15C 4G the clear winner in this comparison.

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