Home Phone comparison Nothing Phone (3a) Pro and Tecno Spark 20 - Which is better?

Nothing Phone (3a) Pro vs Tecno Spark 20

70 out 100
Nothing Phone (3a) Pro
VS
46 out 100
Tecno Spark 20
Nothing Phone (3a) Pro
Tecno Spark 20

Compared 2 smartphones : Nothing Phone (3a) Pro Manufactured in March, 2025, with display 6.77 with chipsetQualcomm Snapdragon 7s Gen 3, vs Tecno Spark 20, Manufactured in January, 2023with chipsetMediaTek Helio G85. 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 Nothing Phone (3a) Pro
  • Larger display: 6.77in
  • Higher pixel density: 387ppi
  • Higher refresh rate: 120Hz
  • Newer Bluetooth version: 5.4 vs 5.2
  • Built-in eSIM
Reasons to choose Tecno Spark 20
  • Lighter design: 190g vs 211g
  • Includes charger

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB		 - 4/128 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Nothing Phone (3a) Pro 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.
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:
Nothing Phone (3a) Pro
vs
Tecno Spark 20

Display

Display quality comparison
Type AMOLED IPS LCD
Size 6.77 in 6.6 in
Resolution 1080x2392 pixels 720x1612 pixels
Aspect ratio n/a 20:9
Pixel density 387 ppi 267 ppi
Refresh rate 120 Hz 90 Hz
Adaptive refresh rate Yes (60-120 Hz) No
Max brightness 1300 nits 500 nits
HDR support Yes HDR10+ No
Screen-to-body ratio 88 % 85 %
Features - DCI-P3
- Always-On Display
- DC dimming		 n/a
Display test
Peak brightness (auto)
Nothing Phone (3a) Pro
1300 nits
Tecno Spark 20
n/a

Design & Build

Design and ergonomics comparison
Height 163.52 mm (6.44 in) 163.69 mm (6.44 in)
Width 77.5 mm (3.05 in) 75.6 mm (2.98 in)
Thickness 8.39 mm (0.33 in) 8.45 mm (0.33 in)
Weight 211 g (7.44 oz) 190 g (6.7 oz)
Water resistance IP64 IP53
Cooling system Vapor chamber n/a
Back panel n/a Plastic
Frame n/a Plastic
Colors - Black
- Gray		 - White
- Black
- Gold
- Blue
Fingerprint sensor Yes In-Display Yes In-Button
Screen-to-body ratio
Nothing Phone (3a) Pro
88 %
Tecno Spark 20
85 %

Performance

Testing Nothing Phone (3a) Pro and Tecno Spark 20 In benchmarks
Processor
Chipset Qualcomm Snapdragon 7s Gen 3 MediaTek Helio G85
Max Frequency 2500 MHz 2000 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/1.8 (Kryo Silver (Cortex-A520))
- 3/2.4 (Kryo Gold (Cortex-A720))
- 1/2.5 (Kryo Prime (Cortex-A720))		 - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)
Process TSMC TSMC
Transistor Size 4 nm 12 nm
Neural Processor Yes Yes
Graphics Adreno 810 Mali-G52 MP2
GPU Cores 256 48
GPU Frequency 1050 MHz 1000 MHz
FLOPS 537.6 GFLOPS 96 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Nothing Phone (3a) Pro
1182
Tecno Spark 20
427
Geekbench 6 (Multi-Core)
Nothing Phone (3a) Pro
3357
Tecno Spark 20
1461
Geekbench 6 (Single-Core)1182427
Geekbench 6 (Multi-Core)33571461
Geekbench Compute (GPU)4459n/a
Sources: Geekbench v6 [Nothing Phone (3a) Pro], [Tecno Spark 20]
AnTuTu 10
AnTuTu 10
Nothing Phone (3a) Pro
750673
Tecno Spark 20
266900
CPU27300082644
GPU19208939001
Memory13507569641
UX15050975614
NanoReview Score750673266900

Memory

RAM
RAM Size - 8 GB
- 12 GB		 8 GB
Memory Type LPDDR5 LPDDR4X
Memory Frequency 3200 MHz 1800 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB		256 GB
Storage Typen/aeMMC 5.1
Memory CardNoMicroSD

Software

OS Android 15 Android 13
UI Skin Nothing OS 3.1 HiOS 13

Battery

Volume 5000 mAh 5000 mAh
Max Charging Power 50 W 18 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (60% in 15 min) Yes (37% in 30 min)
Full Charge Time 1:05 h 1:48 h
Battery Life Test
Battery Life
Nothing Phone (3a) Pro
24:09
Tecno Spark 20
n/a
Web Browsing08:09 hn/a
Video Playback16:21 hn/a
Games05:48 hn/a
Standby Mode120 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8190x6144 pixels
Zoom Optical, 3x Digital
Flash LED Dual LED
Stabilization Optical 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 240 fps (720p) No
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 8 MP		 Standard: 50 MP
Depth: 0.08 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.6
Focal length24 mmn/a
SensorSony LYT-600n/a
Sensor size1/1.56n/a
Pixel size1 μm0.64 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalDigital
Telephoto
Matrix50 MPn/a
Aperturef/2.6n/a
Focal length70 mmn/a
Sensor size1/1.95n/a
Pixel size0.8 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix8 MPn/a
Aperturef/2.2n/a
Focal length15 mmn/a
SensorSony IMX355n/a
Sensor size1/4.0n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 50 MP 32 MP
Photo resolution 8192x6144 pixels 6464x4864 pixels
Aperture f/2.2 f/2.2
Focal length 24 mm n/a
Sensor n/a CMOS
Sensor size 1/2.76 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 6 (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 5.4 5.2
Bluetooth features LE 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 No n/a
GPS - GPS
- GLONASS
- Galileo
- QZSS		 - GPS
- GLONASS
- Galileo
NFC* Yes Varies by region
Infrared Port No No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900n/a
3G BandsUMTS 1, 2, 4, 5, 6, 8, 19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B38/B40/B41/B42/B48/B66)n/a
LTE categoryn/a7
5G SupportYesNo

Sound

Speakers Stereo Stereo
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos n/a No

Other

Class Mid-range Budget
Announced March, 2025 yr January, 2023 yr
Release Date March, 2025 yr January, 2023 yr
Launch Price ($) 459 125
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 Nothing Phone (3a) Pro the clear winner in this comparison.

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