Samsung Galaxy S21 Plus vs S20 Ultra

Here we compared two flagship smartphones: the 6.7-inch Samsung Galaxy S21 Plus (with Exynos 2100) that was released on January 14, 2021, against the Samsung Galaxy S20 Ultra, which is powered by Exynos 9 Octa 990 and came out 12 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy S21 Plus
  • Shows 31% longer battery life (114 vs 87 hours)
  • 12% better performance in AnTuTu Benchmark (727K versus 647K)
  • The phone is 1-year newer
  • Faster storage type - UFS 3.1 versus UFS 3.0
  • More energy-efficient CPU – Exynos 2100
  • 20% faster in single-core GeekBench 5 test: 1080 and 903 points
  • Weighs 20 grams less
Reasons to consider the Samsung Galaxy S20 Ultra
  • The rear camera has a 4x optical zoom
  • 30% higher pixel density (511 vs 394 PPI)
  • Expandable storage via MicroSD card up to 1000GB
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Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

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Price

Tests and specifications

Comparison table of technical specifications and tests

Display

Type Dynamic AMOLED Dynamic AMOLED
Size 6.7 inches 6.9 inches
Resolution 1080 x 2400 pixels 1440 x 3200 pixels
Aspect ratio 20:9 20:9
PPI 394 ppi 511 ppi
Refresh rate 120 Hz 120 Hz
HDR support Yes, HDR10+ Yes, HDR10+
Screen protection Gorilla Glass Victus Corning Gorilla Glass 6
Screen-to-body ratio 88.3% 89.9%
Display features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
Display tests
RGB color space 98.9% 99.2%
PWM 240 Hz 240 Hz
Response time 6.2 ms 6.2 ms
Contrast ∞ Infinity ∞ Infinity
Max. Brightness
879 nits
886 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 161.5 mm (6.36 inches) 166.9 mm (6.57 inches)
Width 75.6 mm (2.98 inches) 76 mm (2.99 inches)
Thickness 7.8 mm (0.31 inches) 8.8 mm (0.35 inches)
Weight 200 gramm (7.05 oz) 220 gramm (7.76 oz)
Waterproof IP68 IP68
Rear material Glass Glass
Frame material Metal Metal
Colors Black, Silver, Gold, Red, Purple Black, Gray
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio

Performance

Tests of Samsung Galaxy S21 Plus and Samsung Galaxy S20 Ultra in the benchmarks
SoC
Chipset Samsung Exynos 2100 Samsung Exynos 9 Octa 990
Max. clock 2840 MHz 2700 MHz
CPU cores 8 (1 + 3 + 4) 8 (2 + 2 + 4)
Architecture - 4 cores at 2.2 GHz: Cortex-A55
- 3 cores at 2.8 GHz: Cortex-A78
- 1 core at 2.9 GHz: Cortex-X1
- 4 cores at 2 GHz: Cortex-A55
- 2 cores at 2.5 GHz: Cortex-A76
- 2 cores at 2.73 GHz: Exynos M5
L3 cache - 2 MB
Lithography process 5 nanometers 7 nanometers
Graphics Mali-G78 MP14 Mali-G77 MP11
GPU clock 760 MHz 550 MHz
FLOPS - ~1196 GFLOPS
Memory
RAM size 8 GB 12, 16 GB
Memory type LPDDR5 LPDDR5
Memory clock 2750 MHz 3200 MHz
Channels 2 2
Storage
Storage size 128, 256 GB 128, 512 GB
Storage type UFS 3.1 UFS 3.0
Memory card No MicroSD
Memory card max. size - Up to 1000 GB

Benchmarks

Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
727428
CPU 189103 171588
GPU 274155 228282
Memory 137436 120291
UX 131951 131225
Total score 727428 647255
3DMark Wild Life Performance
Stability 67% 41%
Graphics test 33 FPS 25 FPS
Graphics score 5538 4273
PCMark 3.0 score - 11402
Best Smartphones in AnTuTu 9 (38th and 91st place)
Sources: 3DMark [3], [4]

Software

Operating system Android 11 (Can be upgraded to Android 12) Android 10.0 (Can be upgraded to Android 12)
ROM One UI 4.0 One UI 4.0
OS size 27.2 GB 23.7 GB

Battery

Specifications
Capacity 4800 mAh 5000 mAh
Charge power 25 W 45 W
Battery type Li-Ion Li-Ion
Replaceable No No
Wireless charging Yes (15 W) Yes (15 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Fast charging Yes (54% in 30 min) Yes (100% in 80 min)
Full charging time 1:12 hr 1:20 hr

Battery life tests

Web browsing (Wi-Fi)
13:55 hr
10:32 hr
Watching videos (Player)
18:53 hr
12:53 hr
Talk (3G)
31:01 hr
24:20 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 12 megapixels 108 megapixels
Image resolution 4000 x 3000 12032 x 9204
Zoom Optical, 1.1x Optical, 4x
Flash Dual LED LED
Stabilization Optical Optical
8K video recording Up to 24FPS Up to 24FPS
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (720p) 960 FPS (720p)
Angle of widest lens 120° 120°
Lenses 3 (12 MP + 64 MP + 12 MP) 4 (108 MP + 48 MP + 12 MP + 0.3 MP)
Wide (main) lens - 12 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 1.8 micron
- Sensor: 1/1.76", Sony IMX555 (Exmor-RS CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
- 108 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.33", Samsung Bright S5KHM1 (ISOCELL CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
Telephoto lens - 64 MP
- Aperture: f/2.0
- Focal length: 28 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.72", Samsung Bright S5KGW2 (ISOCELL Plus CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
- 48 MP
- Aperture: f/3.5
- Focal length: 103 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX586 (CMOS)
- Phase autofocus
- Optical stabilization
Ultra-wide lens - 12 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.4 micron
- Sensor: 1/2.55", Sony IMX563 (Exmor-RS CMOS)
- Phase autofocus (Dual Pixel)
- 12 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.4 micron
Depth lens - - 0.3 MP
- Aperture: f/1.0
- Pixel size: 5 micron
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
- RAW support
Samples Photo samples of Samsung Galaxy S21 Plus from DxOMark -
Selfie camera
Megapixels 10 megapixels 40 megapixels
Image resolution 3872 x 2592 7864 x 5200
Aperture f/2.2 f/2.2
Focal length 26 mm 26 mm
Pixel size 1.22 microns 0.7 microns
Sensor type Exmor-RS CMOS CMOS
Sensor size 1/3.24" 1/2.65"
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS

DxOMark camera tests

Photo quality
Video quality
Generic camera score

Connectivity

Wi-Fi standard Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 6 (802.11 b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Wi-Fi Direct
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.2 3.1
USB features - Charging
- USB-Storage mode
- USB-Host mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* Yes Yes
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* Yes Yes
Hybrid slot No Yes
LTE Cat* 24 22
5G support Yes No

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max. loudness
87.8 dB

Other

Category Flagship Flagship
Announced January 2021 February 2020
Release date February 2021 March 2020
SAR (head) 0.54 W/kg 0.32 W/kg
SAR (body) 1.33 W/kg 1.56 W/kg
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the performance and battery life are more important to you, then choose the Samsung Galaxy S21 Plus. But if the camera is more of a priority – go for the Samsung Galaxy S20 Ultra.

Cast your vote

So, which phone would you choose?
119 (45.6%)
142 (54.4%)
Total votes: 261

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