Oppo Realme 10 vs Samsung Galaxy S21

Compared 2 smartphones : Oppo Realme 10 Manufactured in November, 2022, with display 6.4 with chipsetMediaTek Helio G99, vs Samsung Galaxy S21, Manufactured in February, 2021 with chipsetSamsung Exynos 2100. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Oppo Realme 10
  • Larger display: 6.4in
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Newer Bluetooth version: 5.3 vs 5
  • Includes charger
Reasons to choose Samsung Galaxy S21
  • Higher pixel density: 421ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 169g vs 178g
  • Supports newer USB: 3.2 vs 2
  • Supports Dolby Atmos
  • Built-in eSIM

Versions

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

Review

Key Specs Oppo Realme 10 and Samsung Galaxy S21
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

Display

Display quality comparison
Type Super AMOLED Dynamic AMOLED
Size 6.4 in 6.2 in
Resolution 1080x2400 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 411 ppi 421 ppi
Refresh rate 90 Hz 120 Hz
Adaptive refresh rate No Yes (48-120 Hz)
Max brightness 1000 nits 800 nits
HDR support No Yes HDR10+
Touch Sampling Rate 360 Hz n/a
Screen-to-body ratio 84.3 % 85.9 %
Features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Oppo Realme 10
607 nits
Samsung Galaxy S21
854 nits
sRGB gamut99.2 %99.5 %
PWM (Flicker)409 Hz240 Hz
Response time1 ms5 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 159.9 mm (6.3 in) 151.7 mm (5.97 in)
Width 73.3 mm (2.89 in) 71.2 mm (2.8 in)
Thickness 7.95 mm (0.31 in) 7.9 mm (0.31 in)
Weight 178 g (6.28 oz) 169 g (5.96 oz)
Water resistance No IP68
Back panel Plastic Plastic
Frame Plastic Metal
Colors - White
- Blue
- White
- Gray
- Pink
- Purple
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Oppo Realme 10
84.3 %
Samsung Galaxy S21
85.9 %

Performance

Testing Oppo Realme 10 and Samsung Galaxy S21 In benchmarks
Processor
Chipset MediaTek Helio G99 Samsung Exynos 2100
Max Frequency 2200 MHz 2900 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
- 4/2.2 (Cortex-A55)
- 3/2.81 (Cortex-A78)
- 1/2.91 (Cortex-X1)
Process TSMC Samsung
Transistor Size 6 nm 5 nm
Neural Processor Yes Yes
Graphics Mali-G57 MP2 Mali-G78 MP14
GPU Cores 128 896
GPU Frequency 1000 MHz 854 MHz
FLOPS 128 GFLOPS 1530.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme 10
728
Samsung Galaxy S21
1331
Geekbench 6 (Multi-Core)
Oppo Realme 10
1983
Samsung Galaxy S21
3593
Geekbench 6 (Single-Core)7281331
Geekbench 6 (Multi-Core)19833593
AnTuTu 10
AnTuTu 10
Oppo Realme 10
423241
Samsung Galaxy S21
903780
CPU135779253391
GPU70595281676
Memory111607158352
UX105260210361
NanoReview Score423241903780
3DMark Wild Life
3DMark Wild Life
Oppo Realme 10
1363
Samsung Galaxy S21
5715
Max Surface Temp.44.4 °C38.9 °C
Stability99 %66 %
Graphics Test8 fps34 fps
Graphics Score13635715
PCMark 3.0
PCMark 3.0
Oppo Realme 10
10449
Samsung Galaxy S21
13123
Writing score1272016101
Web score884911909
Video editing63727097
Data manipulation689210153
NanoReview Score1044913123

Memory

RAM
RAM Size - 4 GB
- 6 GB
- 8 GB
8 GB
Memory Type LPDDR4X LPDDR5
Memory Frequency 2133 MHz 2750 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB
- 256 GB
- 128 GB
- 256 GB
Storage TypeUFS 2.2UFS 3.1
Memory CardMicroSDNo

Software

OS Android 12 (Upgradeable to Android 14) Android 11 (Upgradeable to Android 14)
OS Size 20 GB 28.1 GB
UI Skin Realme UI 4.0 One UI 6.0

Battery

Volume 5000 mAh 4000 mAh
Max Charging Power 33 W 25 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No Yes (15 W)
Reverse Charging No Yes (Wireless)
Fast Charging Yes (48% in 30 min) Yes (55% in 50 min)
Full Charge Time 1:16 h 1:35 h
Battery Life Test
Battery Life
Oppo Realme 10
24:49
Samsung Galaxy S21
17:54
Web Browsing10:11 h06:01 h
Video Playback14:08 h11:06 h
Games06:04 h04:21 h
Standby Mode122 h95 h

Main camera

Matrix 50 MP 12 MP
Photo resolution 8192x6144 pixels 4000x3000 pixels
Zoom Digital Optical, 1.1x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Up to 24FPS
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 120 fps (720p) 960 fps (720p)
Wide-angle lens n/a 120 °
Lenses count Standard: 50 MP
Depth: 2 MP
Standard: 12 MP
Telephoto: 64 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP12 MP
Aperturef/1.8f/1.8
Focal length27 mm26 mm
SensorSamsung S5KJN1Sony IMX555
Sensor size1/2.761/1.76
Pixel size0.64 μm1.8 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalOptical
Telephoto
Matrixn/a64 MP
Aperturen/af/2.0
Focal lengthn/a28 mm
Sensorn/aSamsung Bright S5KGW2
Sensor sizen/a1/1.72
Pixel sizen/a0.8 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a12 MP
Aperturen/af/2.2
Focal lengthn/a13 mm
Sensorn/aSony IMX563
Sensor sizen/a1/2.55
Pixel sizen/a1.4 μm
Stabilizationn/aDigital
Main camera DxOMark results
Photo quality
Oppo Realme 10
n/a
Samsung Galaxy S21
129
Video quality
Oppo Realme 10
n/a
Samsung Galaxy S21
137
Overall camera score
Oppo Realme 10
n/a
Samsung Galaxy S21
133
Bokehn/a70
Previewn/a72
Zoomn/a126

Front camera

Matrix 16 MP 10 MP
Photo resolution 4608x3456 pixels 3872x2592 pixels
Aperture f/2.5 f/2.2
Focal length 27 mm 26 mm
Sensor Omnivision OV16A1Q Sony IMX374
Sensor size 1/3.06 1/3.24
Pixel size 1 μm 1.22 μm
Autofocus No Phase autofocus (Dual Pixel)
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 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 5.3 5
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- USB-Host mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G Bandsn/aGSM 850, 900, 1800, 1900 MHz
3G Bandsn/aWCDMA Band 1, 2, 4, 5, 8
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66)
LTE category1324
5G SupportNoYes

Sound

Speakers Mono Stereo
3.5 mm Jack Yes No
FM Radio No No
Dolby Atmos No Yes
Speaker Test
Max Volume
Oppo Realme 10
83.4 dB
Samsung Galaxy S21
87 dB

Other

Class Mid-range Flagship
Announced November, 2022 yr January, 2021 yr
Release Date November, 2022 yr February, 2021 yr
Launch Price ($) 230 800
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 33 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy S21 the clear winner in this comparison.

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