Home Phone comparison Oppo Realme 8i and Xiaomi Mi 9 SE - Which is better?

Oppo Realme 8i vs Xiaomi Mi 9 SE

46 out 100
Oppo Realme 8i
VS
43 out 100
Xiaomi Mi 9 SE
Oppo Realme 8i
Xiaomi Mi 9 SE

Compared 2 smartphones : Oppo Realme 8i Manufactured in September, 2021, with display 6.6 with chipsetMediaTek Helio G96, vs Xiaomi Mi 9 SE, Manufactured in March, 2019 with chipsetQualcomm Snapdragon 712. 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 Oppo Realme 8i
  • Larger display: 6.6in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5000mAh vs 3070mAh
  • Newer Bluetooth version: 5.1 vs 5
Reasons to choose Xiaomi Mi 9 SE
  • Higher pixel density: 432ppi
  • Lighter design: 155g vs 194g
  • Infrared port

Versions

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

Review

Key Specs Oppo Realme 8i and Xiaomi Mi 9 SE
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.
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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:
Oppo Realme 8i
vs
Xiaomi Mi 9 SE

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.6 in 5.97 in
Resolution 1080x2412 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 401 ppi 432 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 600 nits 585 nits
HDR support No Yes HDR10
Touch Sampling Rate 180 Hz n/a
Screen-to-body ratio 84.9 % 84.1 %
Features DCI-P3 Always-On Display
Display test
Peak brightness (auto)
Oppo Realme 8i
535 nits
Xiaomi Mi 9 SE
635 nits
sRGB gamutn/a99.9 %
PWM (Flicker)n/a255 Hz
Response timen/a4.2 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Xiaomi Mi 9 SE]

Design & Build

Design and ergonomics comparison
Height 164.1 mm (6.46 in) 147.5 mm (5.81 in)
Width 75.5 mm (2.97 in) 70.5 mm (2.78 in)
Thickness 8.5 mm (0.33 in) 7.4 mm (0.29 in)
Weight 194 g (6.84 oz) 155 g (5.47 oz)
Water resistance No No
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Purple		 - Gray
- Blue
- Purple
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Oppo Realme 8i
84.9 %
Xiaomi Mi 9 SE
84.1 %

Performance

Testing Oppo Realme 8i and Xiaomi Mi 9 SE In benchmarks
Processor
Chipset MediaTek Helio G96 Qualcomm Snapdragon 712
Max Frequency 2050 MHz 2200 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/2 (Cortex-A55)
- 2/2.05 (Cortex-A76)		 - 6/1.7 (Kryo 360 Silver (Cortex-A55))
- 2/2.3 (Kryo 360 Gold (Cortex-A75))
Process TSMC Samsung
Transistor Size 12 nm 10 nm
Neural Processor MediaTek APU Hexagon 685 DSP
Graphics Mali-G57 MP2 Adreno 616
GPU Cores 128 256
GPU Frequency 950 MHz 750 MHz
FLOPS 243 GFLOPS 384 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme 8i
730
Xiaomi Mi 9 SE
545
Geekbench 6 (Multi-Core)
Oppo Realme 8i
1882
Xiaomi Mi 9 SE
1594
Geekbench 6 (Single-Core)730545
Geekbench 6 (Multi-Core)18821594
AnTuTu 10
AnTuTu 10
Oppo Realme 8i
361810
Xiaomi Mi 9 SE
314968
CPU12521796860
GPU6216565197
Memory7515869080
UX9927083831
NanoReview Score361810314968
3DMark Wild Life
3DMark Wild Life
Oppo Realme 8i
1091
Xiaomi Mi 9 SE
654
Max Surface Temp.n/a38.7 °C
Stability98 %97 %
Graphics Test6 fps3 fps
Graphics Score1091654
Sources: 3DMark [Oppo Realme 8i], [Xiaomi Mi 9 SE]
PCMark 3.0
PCMark 3.0
Oppo Realme 8i
10004
Xiaomi Mi 9 SE
n/a
Writing score12620n/a
Web score8175n/a
Video editing5409n/a
Data manipulation6630n/a
NanoReview Score10004n/a

Memory

RAM
RAM Size - 4 GB
- 6 GB		 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		- 64 GB
- 128 GB
Storage TypeUFS 2.1UFS 2.1
Memory CardMicroSDNo

Software

OS Android 11 (Upgradeable to Android 13) Android 9.0 (Upgradeable to Android 11.0)
OS Size n/a 19 GB
UI Skin Realme UI 4.0 MIUI 12

Battery

Volume 5000 mAh 3070 mAh
Max Charging Power 18 W 18 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (30% in 30 min) Yes Quick Charge 4 (50% in 30 min)
Full Charge Time 2:21 h 1:27 h
Battery Life Test
Battery Life
Oppo Realme 8i
24:45
Xiaomi Mi 9 SE
16:19
Web Browsing08:17 h05:40 h
Video Playback13:08 h10:32 h
Games05:22 h03:52 h
Standby Mode143 h83 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8700x5800 pixels 8000x6000 pixels
Zoom Digital Optical, 2x
Flash LED Dual LED
Stabilization Digital Digital
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 120 fps (720p) 960 fps (720p)
Wide-angle lens n/a 123 °
Lenses count Standard: 50 MP
Macro: 2 MP
Depth: 2 MP		 Standard: 48 MP
Telephoto: 8 MP
Ultra-wide: 13 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP48 MP
Aperturef/1.8f/1.8
Focal length26 mm27 mm
SensorSamsung S5KJN1Sony IMX586
Sensor size1/2.761/2
Pixel size0.64 μm0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Telephoto
Matrixn/a8 MP
Aperturen/af/2.4
Focal lengthn/a52 mm
Sensorn/aOmnivision OV8856
Sensor sizen/a1/4
Pixel sizen/a1.12 μm
Stabilizationn/aDigital
Ultra-wide lens
Matrixn/a13 MP
Aperturen/af/2.4
Sensorn/aSamsung S5K3L6
Sensor sizen/a1/3.1
Pixel sizen/a1.12 μm
Stabilizationn/aDigital

Front camera

Matrix 16 MP 20 MP
Photo resolution 4920x3264 pixels 5120x3840 pixels
Aperture f/2.1 f/2.0
Focal length n/a 18 mm
Sensor Hynix Hi-1364Q Sony IMX576
Sensor size 1/3.0 1/2.78
Pixel size 1 μm 0.9 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
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 5.1 5
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- USB-Host mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Varies by region Yes
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, GSM 900, GSM 1800, GSM 1900
3G BandsWCDMA 1/5/8HSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100
LTE Bands*LTE (B1/B3/B5/B8/B38/B40/B41)LTE (B800/B900/B1800/B2100/B2300/B2500/B2600)
LTE category1315
5G SupportNoNo

Sound

Speakers Mono Mono
3.5 mm Jack Yes No
FM Radio No No
Dolby Atmos No No
Speaker Test
Max Volume
Oppo Realme 8i
n/a
Xiaomi Mi 9 SE
81.5 dB

Other

Class Mid-range Mid-range
Announced September, 2021 yr February, 2019 yr
Release Date September, 2021 yr March, 2019 yr
Launch Price ($) 230 400
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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