Home Phone comparison Realme C51 and Realme 15 5G - Which is better?

Realme C51 vs Realme 15 5G

44 out 100
Realme C51
VS
70 out 100
Realme 15 5G
Realme C51
Realme 15 5G

Compared 2 smartphones : Realme C51 Manufactured in August, 2023, with display 6.74 with chipsetUnisoc Tiger T612, vs Realme 15 5G, Manufactured in July, 2025 with chipsetMediaTek Dimensity 7300 Plus. 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 Realme C51
  • Lighter design: 186g vs 187g
Reasons to choose Realme 15 5G
  • Larger display: 6.8in
  • Higher pixel density: 453ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Infrared port

Versions

Available versions and configurations
Memory Options - 3/64 GB
- 4/64 GB
- 4/128 GB
- 6/256 GB		 - 8/128 GB
- 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Realme C51 and Realme 15 5G
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
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Realme C51
vs
Realme 15 5G

Display

Display quality comparison
Type IPS LCD OLED
Size 6.74 in 6.8 in
Resolution 720x1600 pixels 1280x2800 pixels
Aspect ratio 20:9 19.5:9
Pixel density 260 ppi 453 ppi
Refresh rate 90 Hz 144 Hz
Adaptive refresh rate No Yes
Max brightness 560 nits 1800 nits
HDR support No Yes, HDR10+
Touch Sampling Rate 180 Hz 240 Hz
Screen-to-body ratio 85.6 % 91.9 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 167.2 mm (6.58 in) 162.27 mm (6.39 in)
Width 76.7 mm (3.02 in) 76.16 mm (3 in)
Thickness 7.99 mm (0.31 in) 7.66 mm (0.3 in)
Weight 186 g (6.56 oz) 187 g (6.6 oz)
Water resistance No IP68
Back panel Plastic n/a
Frame Plastic Plastic
Colors - Black
- Green		 - Silver
- Green
- Purple
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Realme C51
85.6 %
Realme 15 5G
91.9 %

Performance

Testing Realme C51 and Realme 15 5G In benchmarks
Processor
Chipset Unisoc Tiger T612 MediaTek Dimensity 7300 Plus
Max Frequency 1800 MHz 2600 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/1.8 (Cortex-A55)
- 2/1.8 (Cortex-A75)		 - 4/2 (Cortex-A55)
- 4/2.5 (Cortex-A78)
Process TSMC TSMC
Transistor Size 12 nm 4 nm
Neural Processor n/a MediaTek APU 655
Graphics Mali-G57 MP1 Mali-G615 MP2
GPU Cores 32 256
GPU Frequency 614 MHz 1047 MHz
FLOPS 78.6 GFLOPS 536.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Realme C51
415
Realme 15 5G
1014
Geekbench 6 (Multi-Core)
Realme C51
1476
Realme 15 5G
2916
Geekbench 6 (Single-Core)4151014
Geekbench 6 (Multi-Core)14762916
Geekbench Compute (GPU)n/a2497
Sources: Geekbench v6 [Realme C51], [Realme 15 5G]
AnTuTu 10
AnTuTu 10
Realme C51
244837
Realme 15 5G
728221
CPU85532212437
GPU23310149032
Memory66023185085
UX69972181667
NanoReview Score244837728221

Memory

RAM
RAM Size 4 GB 8 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1866 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		128 GB
Storage TypeeMMC 5.1UFS 3.1
Memory CardMicroSDNo

Software

OS Android 13 Android 15
UI Skin Realme UI T Realme UI 6.0

Battery

Volume 5000 mAh 7000 mAh
Max Charging Power 33 W 80 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 28 min) Yes
Full Charge Time 1:12 h n/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Digital Digital
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording No Yes (Up to 30 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 30 fps (480p) n/a
Wide-angle lens n/a 112 °
Lenses count Standard: 50 MP
Depth: 0.08 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.8
Focal length27 mm24 mm
SensorSamsung S5KJN1Sony IMX896
Sensor size1/2.761/2
Pixel size0.64 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrixn/a8 MP
Aperturen/af/2.2
Focal lengthn/a16 mm
Stabilizationn/aDigital

Front camera

Matrix 5 MP 50 MP
Photo resolution 3264x2448 pixels 8192x6144 pixels
Aperture f/2.2 n/a
Focal length 28 mm n/a
Sensor Samsung S5K5E9 CMOS
Sensor size 1/5 n/a
Pixel size 1.12 μm n/a
Autofocus No n/a
Stabilization Digital Digital
Video resolution 720p at 30 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.4
Bluetooth features LE 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
- QZSS
NFC* Varies by region No
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900MHzGSM 850/900/1800MHz
3G BandsWCDMA 1/5/8WCDMA 1/5/8
LTE Bands*LTE (B1/B3/B5/B8/B38/B40/B41)LTE (B1/B3/B5/B8/B40/B41)
LTE category7n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio No No
Dolby Atmos No n/a

Other

Class Budget Mid-range
Announced July, 2023 yr July, 2025 yr
Release Date August, 2023 yr July, 2025 yr
Launch Price ($) 160 n/a
MSRP ($) n/a 280
Sensors - Proximity Sensor
- Accelerometer
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 33 W Yes, 80 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Realme 15 5G the clear winner in this comparison.

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