Google Pixel 9a vs Tecno Spark 20

Compared 2 smartphones : Google Pixel 9a Manufactured in April, 2025, with display 6.3 with chipsetGoogle Tensor G4, vs Tecno Spark 20, Manufactured in January, 2023 with chipsetMediaTek Helio G85. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Google Pixel 9a
  • Higher pixel density: 422ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 186g vs 190g
  • Higher battery capacity: 5100mAh vs 5000mAh
  • Newer Bluetooth version: 5.3 vs 5.2
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM
Reasons to choose Tecno Spark 20
  • Larger display: 6.6in
  • Includes charger

Versions

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

Review

Key Specs Google Pixel 9a and Tecno Spark 20
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

Display

Display quality comparison
Type POLED IPS LCD
Size 6.3 in 6.6 in
Resolution 1080x2424 pixels 720x1612 pixels
Aspect ratio 20:9 20:9
Pixel density 422 ppi 267 ppi
Refresh rate 120 Hz 90 Hz
Adaptive refresh rate Yes (60-120 Hz) No
Max brightness 2700 nits 500 nits
HDR support Yes HDR10+ No
Screen-to-body ratio 84.5 % 85 %
Features - DCI-P3
- Always-On Display
n/a

Design & Build

Design and ergonomics comparison
Height 154.7 mm (6.09 in) 163.69 mm (6.44 in)
Width 73.3 mm (2.89 in) 75.6 mm (2.98 in)
Thickness 8.9 mm (0.35 in) 8.45 mm (0.33 in)
Weight 186 g (6.56 oz) 190 g (6.7 oz)
Water resistance IP68 IP53
Back panel Plastic Plastic
Frame Metal Plastic
Colors - White
- Black
- Red
- Purple
- White
- Black
- Gold
- Blue
Fingerprint sensor Yes In-Display Yes In-Button
Screen-to-body ratio
Google Pixel 9a
84.5 %
Tecno Spark 20
85 %

Performance

Testing Google Pixel 9a and Tecno Spark 20 In benchmarks
Processor
Chipset Google Tensor G4 MediaTek Helio G85
Max Frequency 3100 MHz 2000 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/1.92 (Cortex-A520)
- 3/2.6 (Cortex-A720)
- 1/3.1 (Cortex-X4)
- 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)
Process Samsung TSMC
Transistor Size 4 nm 12 nm
Neural Processor Yes Yes
Graphics Mali-G715 MP7 Mali-G52 MP2
GPU Cores 896 48
GPU Frequency 940 MHz 1000 MHz
FLOPS 1792 GFLOPS 96 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Google Pixel 9a
1677
Tecno Spark 20
427
Geekbench 6 (Multi-Core)
Google Pixel 9a
4067
Tecno Spark 20
1461
Geekbench 6 (Single-Core)1677427
Geekbench 6 (Multi-Core)40671461
Geekbench Compute (GPU)7784n/a
AnTuTu 10
AnTuTu 10
Google Pixel 9a
991079
Tecno Spark 20
266900
CPU16173782644
GPU46486539001
Memory19175069641
UX17272775614
NanoReview Score991079266900

Memory

RAM
RAM Size 8 GB 8 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 4200 MHz 1800 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB
256 GB
Storage TypeUFS 3.1eMMC 5.1
Memory CardNoMicroSD

Software

OS Android 15 Android 13
UI Skin Stock Android HiOS 13

Battery

Volume 5100 mAh 5000 mAh
Max Charging Power 23 W 18 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging Yes (7.5 W) No
Reverse Charging n/a No
Fast Charging Yes (50% in 30 min) Yes (37% in 30 min)
Full Charge Time n/a 1:48 h

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8190x6144 pixels
Zoom Digital Digital
Flash Dual LED Dual LED
Stabilization Optical Digital
8K Recording No 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) No
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Ultra-wide: 13 MP
Standard: 50 MP
Depth: 0.08 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.7f/1.6
Focal length25 mmn/a
Sensor size1/1.2n/a
Pixel size0.8 μm0.64 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix13 MPn/a
Aperturef/2.2n/a
Sensor size1/3.1n/a
StabilizationDigitaln/a

Front camera

Matrix 13 MP 32 MP
Photo resolution 4032x3024 pixels 6464x4864 pixels
Aperture f/2.2 f/2.2
Focal length 20 mm n/a
Sensor CMOS CMOS
Sensor size 1/3.1 n/a
Pixel size 1.12 μm n/a
Autofocus n/a No
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 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 5.3 5.2
Bluetooth features LE LE
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 n/a
GPS - GPS
- GLONASS
- Galileo
- GPS
- GLONASS
- Galileo
NFC* Yes Varies by region
Infrared Port No No
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM Moden/aDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM/EDGE: Quad-band (850, 900, 1800, 1900 MHz)n/a
3G BandsUMTS/HSPA+/HSDPA 1, 2, 4, 5, 6, 8, 19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B17/B20/B25/B26/B28/B29/B30/B38/B41/B48/B66/B71)n/a
LTE categoryn/a7
5G SupportYesNo

Sound

Speakers Stereo Stereo
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos No No

Other

Class Mid-range Budget
Announced March, 2025 yr January, 2023 yr
Release Date April, 2025 yr January, 2023 yr
Launch Price ($) 499 125
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No Yes 18 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Google Pixel 9a the clear winner in this comparison.

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