Home Phone comparison Samsung Galaxy S25 and Oppo Realme 9i - Which is better?

Samsung Galaxy S25 vs Oppo Realme 9i

87 out 100
Samsung Galaxy S25
VS
46 out 100
Oppo Realme 9i
Samsung Galaxy S25
Oppo Realme 9i

Compared 2 smartphones : Samsung Galaxy S25 Manufactured in February, 2025, with display 6.2 with chipsetQualcomm Snapdragon 8 Elite, vs Oppo Realme 9i, Manufactured in January, 2022with chipsetQualcomm Snapdragon 680. 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 S25
  • Higher pixel density: 416ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 162g vs 190g
  • Newer Bluetooth version: 5.4 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM
Reasons to choose Oppo Realme 9i
  • Larger display: 6.6in
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Includes charger

Versions

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

Review

Key Specs Samsung Galaxy S25 and Oppo Realme 9i
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 S25
vs
Oppo Realme 9i

Display

Display quality comparison
Type Dynamic AMOLED IPS LCD
Size 6.2 in 6.6 in
Resolution 1080x2340 pixels 1080x2412 pixels
Aspect ratio 19.5:9 20:9
Pixel density 416 ppi 401 ppi
Refresh rate 120 Hz 90 Hz
Adaptive refresh rate Yes (1-120 Hz) No
Max brightness 2600 nits 480 nits
HDR support Yes HDR10+ No
Touch Sampling Rate 240 Hz 180 Hz
Screen-to-body ratio 91.1 % 84.5 %
Features - DCI-P3
- Always-On Display		 DCI-P3
Display test
Peak brightness (auto)
Samsung Galaxy S25
1406 nits
Oppo Realme 9i
512 nits
sRGB gamut97.4 %98.2 %
PWM (Flicker)240 Hzn/a
Response time2 ms26 ms
Contrast∞ Infinite847:1
Sources: NotebookCheck [Samsung Galaxy S25], [Oppo Realme 9i]

Design & Build

Design and ergonomics comparison
Height 146.9 mm (5.78 in) 164.4 mm (6.47 in)
Width 70.5 mm (2.78 in) 75.7 mm (2.98 in)
Thickness 7.2 mm (0.28 in) 8.4 mm (0.33 in)
Weight 162 g (5.71 oz) 190 g (6.7 oz)
Water resistance IP68 No
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors - Black
- Silver
- Gray
- Blue
- Green
- Pink		 - Black
- Blue
Fingerprint sensor Yes In-Display Yes In-Button
Screen-to-body ratio
Samsung Galaxy S25
91.1 %
Oppo Realme 9i
84.5 %

Performance

Testing Samsung Galaxy S25 and Oppo Realme 9i In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 680
Max Frequency 4470 MHz 2400 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 4/1.9 (Kryo 265 Silver (Cortex-A53))
- 4/2.4 (Kryo 265 Gold (Cortex-A73))
Process TSMC TSMC
Transistor Size 3 nm 6 nm
Neural Processor Hexagon Hexagon 686
Graphics Adreno 830 Adreno 610
GPU Cores 1536 128
GPU Frequency 1100 MHz 1114 MHz
FLOPS 3379.2 GFLOPS 284 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S25
3075
Oppo Realme 9i
548
Geekbench 6 (Multi-Core)
Samsung Galaxy S25
9822
Oppo Realme 9i
1599
Geekbench 6 (Single-Core)3075548
Geekbench 6 (Multi-Core)98221599
Geekbench Compute (GPU)26264n/a
Sources: Geekbench v6 [Samsung Galaxy S25]
AnTuTu 10
AnTuTu 10
Samsung Galaxy S25
2382973
Oppo Realme 9i
294782
CPU58013999824
GPU96129940210
Memory47874180648
UX36279474100
NanoReview Score2382973294782
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy S25
n/a
Oppo Realme 9i
445
Max Surface Temp.n/a43.9 °C
Stabilityn/a98 %
Graphics Testn/a2 fps
Graphics Scoren/a445
Sources: 3DMark [Oppo Realme 9i]
PCMark 3.0
PCMark 3.0
Samsung Galaxy S25
n/a
Oppo Realme 9i
8159
Writing scoren/a9474
Web scoren/a7934
Video editingn/a4265
Data manipulationn/a6065
NanoReview Scoren/a8159

Memory

RAM
RAM Size 12 GB - 4 GB
- 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 5333 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity128 GB- 64 GB
- 128 GB
Storage TypeUFS 4.0UFS 2.1
Memory CardNoMicroSD

Software

OS Android 15 Android 11 (Upgradeable to Android 14)
OS Size 30.1 GB 17 GB
UI Skin One UI 7.0 Realme UI 5.0

Battery

Volume 4000 mAh 5000 mAh
Max Charging Power 25 W 33 W
Battery Type Li-ion Li-ion
Removable No No
Wireless Charging Yes (15 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (56% in 30 min) Yes (27% in 15 min)
Full Charge Time 1:17 h 1:12 h
Battery Life Test
Battery Life
Samsung Galaxy S25
24:10
Oppo Realme 9i
n/a
Web Browsing09:09 hn/a
Video Playback17:15 hn/a
Games05:32 hn/a
Standby Mode108 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8160x6120 pixels 8700x5800 pixels
Zoom Optical, 3x Digital
Flash LED LED
Stabilization Optical Digital
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 240 fps (1080p) n/a
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP		 Standard: 50 MP
Macro: 2 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.8
Focal length24 mm26 mm
SensorSamsung ISOCELL S5KGN3Samsung S5KJN1
Sensor size1/1.561/2.76
Pixel size1 μm0.64 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalDigital
Telephoto
Matrix10 MPn/a
Aperturef/2.4n/a
Focal length67 mmn/a
SensorSamsung ISOCELL S5K3K1n/a
Sensor size1/3.94n/a
Pixel size1 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix12 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
SensorSony IMX564n/a
Sensor size1/2.55n/a
Pixel size1.4 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Samsung Galaxy S25
n/a
Oppo Realme 9i
95
Video quality
Samsung Galaxy S25
n/a
Oppo Realme 9i
61
Overall camera score
Samsung Galaxy S25
n/a
Oppo Realme 9i
75
Bokehn/a30
Previewn/a57
Zoomn/a36
Sources: DxOMark [Oppo Realme 9i]

Front camera

Matrix 12 MP 16 MP
Photo resolution 4000x3000 pixels 4920x3264 pixels
Aperture f/2.2 f/2.1
Focal length 26 mm 26 mm
Sensor Samsung S5K3LU Sony IMX471
Sensor size 1/3.2 1/3.13
Pixel size 1.12 μm 1 μm
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) 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 5.4 5
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes DP 1.2 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Varies by region
Infrared Port No No
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM850,GSM900,DCS1800,PCS1900GSM 850/900/1800/1900
3G BandsUMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)WCDMA 1/5/8
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)LTE (B1/B3/B5/B8/B38/B40/B41)
5G SupportYesNo

Sound

Speakers n/a Stereo
3.5 mm Jack No Yes
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy S25
91.7 dB
Oppo Realme 9i
88 dB

Other

Class Flagship Mid-range
Announced January, 2025 yr January, 2022 yr
Release Date February, 2025 yr January, 2022 yr
Launch Price ($) n/a 230
MSRP ($) 799 n/a
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No Yes 33 W

Note

Samsung Galaxy S25:

Supports up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. model has 1.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy S25 the clear winner in this comparison.

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