Home Phone comparison Samsung Galaxy A51 and Xiaomi Redmi 15C 4G - Which is better?

Samsung Galaxy A51 vs Xiaomi Redmi 15C 4G

41 out 100
Samsung Galaxy A51
VS
56 out 100
Xiaomi Redmi 15C 4G
Samsung Galaxy A51
Xiaomi Redmi 15C 4G

Compared 2 smartphones : Samsung Galaxy A51 Manufactured in December, 2019, with display 6.5 with chipsetSamsung Exynos 9 Octa 9611, 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 A51
  • Higher pixel density: 405ppi
  • Lighter design: 172g 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 4000mAh
  • Newer Bluetooth version: 5.4 vs 5

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB		 - 4/128 GB
- 4/256 GB

Review

Key Specs Samsung Galaxy A51 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 A51
vs
Xiaomi Redmi 15C 4G

Display

Display quality comparison
Type Super AMOLED IPS LCD
Size 6.5 in 6.9 in
Resolution 1080x2400 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 405 ppi 254 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 400 nits n/a
HDR support No No
Screen-to-body ratio 87.5 % 84.2 %
Features Always-On Display n/a
Display test
Peak brightness (auto)
Samsung Galaxy A51
631 nits
Xiaomi Redmi 15C 4G
n/a
sRGB gamut98.8 %n/a
PWM (Flicker)242 Hzn/a
Response time25 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy A51]

Design & Build

Design and ergonomics comparison
Height 158.5 mm (6.24 in) 171.6 mm (6.76 in)
Width 73.6 mm (2.9 in) 79.5 mm (3.13 in)
Thickness 7.9 mm (0.31 in) 8 mm (0.31 in)
Weight 172 g (6.07 oz) 205 g (7.23 oz)
Water resistance No IP64
Back panel Plastic Eco Leather
Frame Plastic Plastic
Colors - White
- Black		 - Gray
- Blue
- Green
- Orange
Fingerprint sensor Yes In-Display Yes, In-Button
Screen-to-body ratio
Samsung Galaxy A51
87.5 %
Xiaomi Redmi 15C 4G
84.2 %

Performance

Testing Samsung Galaxy A51 and Xiaomi Redmi 15C 4G In benchmarks
Processor
Chipset Samsung Exynos 9 Octa 9611 MediaTek Helio G81 Ultra
Max Frequency 2300 MHz 2000 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)		 - 6/1.7 (Cortex-A55)
- 2/2 (Cortex-A75)
Process Samsung TSMC
Transistor Size 10 nm 12 nm
Neural Processor Yes Yes
Graphics Mali-G72 MP3 Mali-G52 MP2
GPU Cores 54 48
GPU Frequency 850 MHz 820 MHz
FLOPS 113.8 GFLOPS 78.7 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A51
512
Xiaomi Redmi 15C 4G
421
Geekbench 6 (Multi-Core)
Samsung Galaxy A51
1556
Xiaomi Redmi 15C 4G
1387
Geekbench 6 (Single-Core)512421
Geekbench 6 (Multi-Core)15561387
AnTuTu 10
AnTuTu 10
Samsung Galaxy A51
268760
Xiaomi Redmi 15C 4G
278312
CPU8385784872
GPU4516635457
Memory6382874922
UX7590983061
NanoReview Score268760278312
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A51
812
Xiaomi Redmi 15C 4G
n/a
Max Surface Temp.42.2 °Cn/a
Stability95 %n/a
Graphics Test4 fpsn/a
Graphics Score812n/a
Sources: 3DMark [Samsung Galaxy A51]

Memory

RAM
RAM Size - 4 GB
- 6 GB		 4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1866 MHz 1800 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		128 GB
Storage TypeUFS 2.0eMMC 5.1
Memory CardMicroSDMicroSD

Software

OS Android 10 (Upgradeable to Android 13) Android 15
OS Size 23 GB n/a
UI Skin One UI 5.1 HyperOS 2.0

Battery

Volume 4000 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 (40% in 35 min) Yes
Full Charge Time 1:50 h n/a
Battery Life Test
Battery Life
Samsung Galaxy A51
17:53
Xiaomi Redmi 15C 4G
n/a
Web Browsing07:15 hn/a
Video Playback11:25 hn/a
Games04:49 hn/a
Standby Mode81 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 Yes (Up to 30 fps) No
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Slow Motion 960 fps (720p) n/a
Wide-angle lens 120 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix48 MP50 MP
Aperturef/2.0f/1.8
Focal length26 mm28 mm
SensorSony IMX582n/a
Sensor size1/21/2
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix12 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 32 MP 8 MP
Photo resolution 6560x4928 pixels n/a
Aperture f/2.2 f/2.0
Focal length 26 mm n/a
Sensor Samsung S5KGD1 CMOS
Sensor size 1/2.8 1/4.0
Pixel size 0.8 μm 1.12 μm
Autofocus No No
Stabilization Digital No
Video resolution 2160p (4K) 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 BandsGSM 850 / 900 / 1800 / 2100 / 2600n/a
3G BandsUMTS 850 / 900 / 1900 / 2100n/a
LTE Bands*LTE (B850/B900/B1800/B2100/B2600)n/a
LTE category12n/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 A51
81.7 dB
Xiaomi Redmi 15C 4G
n/a

Other

Class Mid-range Budget
Announced December, 2019 yr August, 2025 yr
Release Date December, 2019 yr August, 2025 yr
Launch Price ($) 399 n/a
MSRP ($) n/a 120
Sensors - 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.

Survey

Which smartphone would you pick?
0 (0%)
0 (0%)
Total Votes: 0

User comments

Share your opinion or ask questions below