Google Pixel 8a vs Samsung Galaxy S21 Plus

Compared 2 smartphones : Google Pixel 8a Manufactured in May, 2024, with display 6.1 with chipsetGoogle Tensor G3, vs Samsung Galaxy S21 Plus, 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 Google Pixel 8a
  • Higher pixel density: 430ppi
  • Lighter design: 188g vs 200g
  • Newer Bluetooth version: 5.3 vs 5
  • Supports DisplayPort
Reasons to choose Samsung Galaxy S21 Plus
  • Larger display: 6.7in
  • Higher battery capacity: 4800mAh vs 4492mAh
  • Supports Dolby Atmos

Versions

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

Review

Key Specs Google Pixel 8a and Samsung Galaxy S21 Plus
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 OLED Dynamic AMOLED
Size 6.1 in 6.7 in
Resolution 1080x2400 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 430 ppi 394 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (48-120 Hz)
Max brightness 2000 nits 1300 nits
HDR support Yes HDR10 Yes HDR10+
Screen-to-body ratio 81.3 % 88.7 %
Features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Google Pixel 8a
1498 nits
Samsung Galaxy S21 Plus
879 nits
sRGB gamut99.1 %98.9 %
PWM (Flicker)120 Hz240 Hz
Response time2 ms6.2 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 152.1 mm (5.99 in) 161.5 mm (6.36 in)
Width 72.7 mm (2.86 in) 75.6 mm (2.98 in)
Thickness 8.9 mm (0.35 in) 7.8 mm (0.31 in)
Weight 188 g (6.63 oz) 200 g (7.05 oz)
Water resistance IP67 IP68
Back panel Plastic Glass
Frame Metal Metal
Colors - White
- Black
- Blue
- Green
- Black
- Silver
- Gold
- Red
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Google Pixel 8a
81.3 %
Samsung Galaxy S21 Plus
88.7 %

Performance

Testing Google Pixel 8a and Samsung Galaxy S21 Plus In benchmarks
Processor
Chipset Google Tensor G3 Samsung Exynos 2100
Max Frequency 3000 MHz 2840 MHz
CPU Cores 9 (1 + 4 + 4) 8 (1 + 3 + 4)
Architecture - 4/1.7 (Cortex-A510)
- 4/2.37 (Cortex-A715)
- 1/2.91 (Cortex-X3)
- 4/2.2 (Cortex-A55)
- 3/2.81 (Cortex-A78)
- 1/2.91 (Cortex-X1)
Process Samsung Samsung
Transistor Size 4 nm 5 nm
Neural Processor Yes Yes
Graphics Mali-G715 MP7 Mali-G78 MP14
GPU Cores 896 896
GPU Frequency 890 MHz 854 MHz
FLOPS 1594.8 GFLOPS 1530.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Google Pixel 8a
1683
Samsung Galaxy S21 Plus
1428
Geekbench 6 (Multi-Core)
Google Pixel 8a
4330
Samsung Galaxy S21 Plus
3840
Geekbench 6 (Single-Core)16831428
Geekbench 6 (Multi-Core)43303840
Geekbench Compute (GPU)6350n/a
AnTuTu 10
AnTuTu 10
Google Pixel 8a
1179223
Samsung Galaxy S21 Plus
919348
CPU363260262973
GPU396428294382
Memory189558147307
UX229977214686
NanoReview Score1179223919348
3DMark Wild Life
3DMark Wild Life
Google Pixel 8a
n/a
Samsung Galaxy S21 Plus
5538
Max Surface Temp.n/a41.5 °C
Stabilityn/a67 %
Graphics Testn/a33 fps
Graphics Scoren/a5538

Memory

RAM
RAM Size 8 GB 8 GB
Memory Type LPDDR5 LPDDR5
Memory Frequency 3200 MHz 2750 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB
- 128 GB
- 256 GB
Storage TypeUFS 3.1UFS 3.1
Memory CardNoNo

Software

OS Android 14 (Upgradeable to Android 15) Android 11 (Upgradeable to Android 14)
OS Size 18.4 GB 27.2 GB
UI Skin Stock Android One UI 6

Battery

Volume 4492 mAh 4800 mAh
Max Charging Power 18 W 25 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging Yes (7.5 W) Yes (15 W)
Reverse Charging No Yes (Wireless)
Fast Charging Yes (33% in 30 min) Yes (54% in 30 min)
Full Charge Time 2:09 h 1:12 h
Battery Life Test
Battery Life
Google Pixel 8a
19:43
Samsung Galaxy S21 Plus
20:53
Web Browsing08:15 h07:28 h
Video Playback13:00 h13:15 h
Games04:54 h05:04 h
Standby Mode86 h105 h

Main camera

Matrix 64 MP 12 MP
Photo resolution 9000x7000 pixels 4000x3000 pixels
Zoom Digital Optical, 1.1x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording No Up to 24FPS
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (1080p) 960 fps (720p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 64 MP
Ultra-wide: 13 MP
Standard: 12 MP
Telephoto: 64 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix64 MP12 MP
Aperturef/1.9f/1.8
Focal length26 mm26 mm
SensorSony IMX787Sony IMX555
Sensor size1/1.731/1.76
Pixel size0.8 μm1.8 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus (Dual Pixel)
StabilizationOpticalOptical
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
Matrix13 MP12 MP
Aperturef/2.2f/2.2
Focal lengthn/a13 mm
SensorSony IMX712Sony IMX563
Sensor size1/3.061/2.55
Pixel size1.12 μm1.4 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Google Pixel 8a
141
Samsung Galaxy S21 Plus
129
Video quality
Google Pixel 8a
128
Samsung Galaxy S21 Plus
137
Overall camera score
Google Pixel 8a
136
Samsung Galaxy S21 Plus
133
Bokeh6070
Preview7172
Zoom126126

Front camera

Matrix 13 MP 10 MP
Photo resolution 4032x3024 pixels 3872x2592 pixels
Aperture n/a f/2.2
Focal length n/a 26 mm
Sensor n/a Sony IMX374
Sensor size n/a 1/3.24
Pixel size n/a 1.22 μm
Autofocus n/a Phase autofocus (Dual Pixel)
Stabilization n/a Digital
Video resolution 2160p (4K) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- 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 3.2 3.2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- USB-Host mode
- OTG
DisplayPort Yes n/a
GPS - GPS
- GLONASS
- Galileo
- QZSS
- GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM Moden/aDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM/EDGE Quad-band (850, 900, 1800, 1900 MHz)GSM 850, 900, 1800, 1900 MHz
3G BandsUMTS/HSPA+/HSDPA 1, 2, 4, 5, 6, 8, 19WCDMA Band 1, 2, 4, 5, 8
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)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66)
LTE category2024
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos No Yes
Speaker Test
Max Volume
Google Pixel 8a
89.3 dB
Samsung Galaxy S21 Plus
87.8 dB

Other

Class Mid-range Flagship
Announced May, 2024 yr January, 2021 yr
Release Date May, 2024 yr February, 2021 yr
Launch Price ($) 499 1000
Sensors - Barometer
- 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 No n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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