Xiaomi Redmi Note 9S vs Tecno Spark 40C

Compared 2 smartphones : Xiaomi Redmi Note 9S Manufactured in April, 2020, with display 6.67 with chipsetQualcomm Snapdragon 720G, vs Tecno Spark 40C, Manufactured in August, 2025 with chipsetMediaTek Helio G81. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi Note 9S
  • Higher pixel density: 395ppi
Reasons to choose Tecno Spark 40C
  • Higher refresh rate: 120Hz
  • Lighter design: 190g vs 210g
  • Higher battery capacity: 6000mAh vs 5020mAh
  • Newer Bluetooth version: 5.3 vs 5
  • Supports Dolby Atmos
  • Includes charger

Versions

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

Review

Key Specs Xiaomi Redmi Note 9S and Tecno Spark 40C
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

Display

Display quality comparison
Type IPS LCD IPS LCD
Size 6.67 in 6.67 in
Resolution 1080x2400 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 395 ppi 263 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 628 nits n/a
HDR support Yes HDR10 No
Screen-to-body ratio 84 % 84.2 %
Display test
Peak brightness (auto)
Xiaomi Redmi Note 9S
571 nits
Tecno Spark 40C
n/a
sRGB gamut114.9 %n/a
Response time34 msn/a
Contrast1111:1n/a

Design & Build

Design and ergonomics comparison
Height 166 mm (6.54 in) 165.6 mm (6.52 in)
Width 77 mm (3.03 in) 77 mm (3.03 in)
Thickness 8.8 mm (0.35 in) 8.4 mm (0.33 in)
Weight 210 g (7.41 oz) 190 g (6.7 oz)
Water resistance No IP64
Back panel Glass Plastic
Frame Plastic Plastic
Colors - White
- Black
- Blue
- White
- Black
- Gray
- Blue
Fingerprint sensor Yes In-Button Yes, In-Button
Screen-to-body ratio
Xiaomi Redmi Note 9S
84 %
Tecno Spark 40C
84.2 %

Performance

Testing Xiaomi Redmi Note 9S and Tecno Spark 40C In benchmarks
Processor
Chipset Qualcomm Snapdragon 720G MediaTek Helio G81
Max Frequency 2300 MHz 2000 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Kryo 465 Silver (Cortex-A55))
- 2/2.3 (Kryo 465 Gold (Cortex-A76))
- 6/1.7 (Cortex-A55)
- 2/2 (Cortex-A75)
Process Samsung TSMC
Transistor Size 8 nm 12 nm
Neural Processor Hexagon 692 Yes
Graphics Adreno 618 Mali-G52 MP2
GPU Cores 256 48
GPU Frequency 750 MHz 820 MHz
FLOPS 384 GFLOPS 78.7 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi Note 9S
722
Tecno Spark 40C
444
Geekbench 6 (Multi-Core)
Xiaomi Redmi Note 9S
1880
Tecno Spark 40C
1372
Geekbench 6 (Single-Core)722444
Geekbench 6 (Multi-Core)18801372
AnTuTu 10
AnTuTu 10
Xiaomi Redmi Note 9S
387217
Tecno Spark 40C
245537
CPU13098876856
GPU9009135386
Memory7261564168
UX9352369127
NanoReview Score387217245537
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi Note 9S
1041
Tecno Spark 40C
n/a
Max Surface Temp.42.4 °Cn/a
Stability98 %n/a
Graphics Test6 fpsn/a
Graphics Score1041n/a
PCMark 3.0
PCMark 3.0
Xiaomi Redmi Note 9S
8091
Tecno Spark 40C
n/a
Writing score9663n/a
Web score5943n/a
Video editing5437n/a
Data manipulation6802n/a
NanoReview Score8091n/a

Memory

RAM
RAM Size - 4 GB
- 6 GB
4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1800 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB
128 GB
Storage TypeUFS 2.1eMMC 5.1
Memory CardMicroSDMicroSD

Software

OS Android 10.0 (Upgradeable to Android 12) Android 15
OS Size 18 GB n/a
UI Skin MIUI 14 HIOS 15.1

Battery

Volume 5020 mAh 6000 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 (50% in 50 min) Yes
Full Charge Time 2:30 h n/a
Battery Life Test
Battery Life
Xiaomi Redmi Note 9S
26:58
Tecno Spark 40C
n/a
Web Browsing10:56 hn/a
Video Playback15:15 hn/a
Games05:45 hn/a
Standby Mode136 hn/a

Main camera

Matrix 48 MP 13 MP
Photo resolution 8000x6000 pixels n/a
Zoom Digital Digital
Flash LED Dual LED
Stabilization Digital Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 960 fps (720p) n/a
Wide-angle lens 119 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 2 MP
Standard: 13 MP
Depth
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
Main lens
Matrix48 MP13 MP
Aperturef/1.8f/1.8
Focal length26 mm27 mm
SensorSamsung S5KGM2n/a
Sensor size1/2n/a
Pixel size0.8 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
SensorOmnivision OV8856n/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 16 MP 8 MP
Photo resolution 4920x3264 pixels n/a
Aperture f/2.5 n/a
Sensor Omnivision OV16A1Q CMOS
Sensor size 1/3.06 n/a
Pixel size 1 μm n/a
Autofocus No No
Stabilization Digital No
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 5.3
Bluetooth features LE, HID, 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
- NAVIC
- GPS
- GLONASS
- Galileo
NFC* No Varies by region
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 2100 / 2600 / 2300 / 2500n/a
3G BandsHSDPA 850 / 900 / 1900 / 2100n/a
LTE Bands*LTE (B850/B900/B1800/B2100/B2300/B2500/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 No Yes
Speaker Test
Max Volume
Xiaomi Redmi Note 9S
81 dB
Tecno Spark 40C
n/a

Other

Class Mid-range Budget
Announced March, 2020 yr July, 2025 yr
Release Date April, 2020 yr August, 2025 yr
Launch Price ($) 200 n/a
MSRP ($) n/a 100
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a Yes, 45 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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