Samsung Galaxy S21 vs A33 5G
Here we compared two smartphones: the 6.2-inch Samsung Galaxy S21 (with Exynos 2100) that was released on January 14, 2021, against the Samsung Galaxy A33 5G, which is powered by Exynos 1280 and came out 15 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Key differences
Reasons to consider the Samsung Galaxy S21
- 68% better performance in AnTuTu Benchmark (806K versus 481K)
- Better camera quality (According to DxOMark rating)
- Higher display refresh rate – 120 Hz
- Handles wireless charging up to 15W
- The rear camera has a 1.1x optical zoom
- Waterproof body (IP68 classification)
- Uses a faster type of memory: LPDDR5 2750 MHz
- Compatible with Wi-Fi 6 wireless networks
- Delivers 19% higher peak brightness (864 against 729 nits)
- Slow-motion recording at 960FPS
- Ready for eSIM technology
Reasons to consider the Samsung Galaxy A33 5G
- Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
- Shows 24% longer battery life (31:53 vs 25:44 hours)
- Newer Bluetooth version (v5.1)
- Expandable storage via MicroSD card up to 1024GB
- The phone is 1-year and 3-months newer
Review
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Value for money
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | Dynamic AMOLED | Super AMOLED |
| Size | 6.2 inches | 6.4 inches |
| Resolution | 1080 x 2400 pixels | 1080 x 2400 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 421 ppi | 411 ppi |
| Refresh rate | 120 Hz | 90 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 800 nits | 500 nits |
| Max rated brightness in HDR | - | 1000 nits |
| HDR support | Yes, HDR10+ | No |
| Screen protection | Gorilla Glass Victus | Corning Gorilla Glass 5 |
| Screen-to-body ratio | 87.2% | 83.7% |
| Display features |
- DCI-P3
- Always-On Display |
- DCI-P3 |
| RGB color space | 99.5% | 98.3% |
| PWM | 240 Hz | 366 Hz |
| Response time | 5 ms | 1 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 151.7 mm (5.97 inches) | 159.7 mm (6.29 inches) |
| Width | 71.2 mm (2.8 inches) | 74 mm (2.91 inches) |
| Thickness | 7.9 mm (0.31 inches) | 8.1 mm (0.32 inches) |
| Weight | 169 g (5.96 oz) | 186 g (6.56 oz) |
| Waterproof | IP68 | IP67 |
| Rear material | Plastic | Plastic |
| Frame material | Metal | Plastic |
| Colors | White, Gray, Pink, Purple | White, Black, Blue, Yellow |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 2100 | Samsung Exynos 1280 |
| Max clock | 2900 MHz | 2400 MHz |
| CPU cores | 8 (1 + 3 + 4) | 8 (2 + 6) |
| Architecture |
- 4 cores at 2.2 GHz: Cortex-A55
- 3 cores at 2.81 GHz: Cortex-A78 - 1 core at 2.91 GHz: Cortex-X1 |
- 6 cores at 2 GHz: Cortex-A55
- 2 cores at 2.4 GHz: Cortex-A78 |
| Lithography process | 5 nanometers | 5 nanometers |
| Graphics | Mali-G78 MP14 | Mali-G68 MP4 |
| GPU shading units | 896 | - |
| GPU clock | 854 MHz | 1000 MHz |
| FLOPS | ~1530.4 GFLOPS | ~487 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
| CPU | 150223 | 143324 |
| GPU | 340353 | 127938 |
| Memory | 151885 | 86144 |
| UX | 158712 | 121019 |
| Total score | 806977 | 481288 |
3DMark Wild Life Performance
| Max surface temperature | 38.9 °C | 39.8 °C |
| Stability | 66% | 98% |
| Graphics test | 34 FPS | 13 FPS |
| Graphics score | 5714 | 2257 |
PCMark 3.0
| Web score | 12591 | 8450 |
| Video editing | 7113 | 7101 |
| Photo editing | 29385 | 21208 |
| Data manipulation | 10438 | 8557 |
| Writing score | 16561 | 14268 |
Memory
| RAM size | 8 GB | 6, 8 GB |
| Memory type | LPDDR5 | LPDDR4X |
| Memory clock | 2750 MHz | - |
| Channels | 2 | 2 |
| Storage size | 128, 256 GB | 128, 256 GB |
| Storage type | UFS 3.1 | UFS 2.2 |
| Memory card | No | MicroSD |
| Memory card max size | - | Up to 1024 GB |
Software
| Operating system | Android 11 (Can be upgraded to Android 13) | Android 12 (Can be upgraded to Android 13) |
| ROM | One UI 5.1 | One UI 5.1 |
| OS size | 28.1 GB | 26 GB |
Battery
| Capacity | 4000 mAh | 5000 mAh |
| Max charge power | 25 W | 25 W |
| Battery type | Li-Ion | Li-Po |
| Replaceable | No | No |
| Wireless charging | Yes (15 W) | No |
| Reverse charging | Yes, (wireless) | No |
| Fast charging | Yes (55% in 50 min) | Yes (50% in 30 min) |
| Full charging time | 1:35 hr | 1:15 hr |
| Web browsing | 07:27 hr | 10:17 hr |
| Watching video | 12:26 hr | 15:03 hr |
| Gaming | 04:31 hr | 05:45 hr |
| Standby | 92 hr | 105 hr |
General battery life
Camera
| Matrix | 12 megapixels | 48 megapixels |
| Image resolution | 4000 x 3000 | 8000 x 6000 |
| Zoom | Optical, 1.1x | Digital |
| Flash | Dual LED | LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 24FPS | No |
| 4K video recording | Up to 60FPS | Up to 30FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 960 FPS (720p) | 480 FPS (720p) |
| Angle of widest lens | 120° | 123° |
| Lenses | 3 (12 MP + 64 MP + 12 MP) | 4 (48 MP + 8 MP + 5 MP + 2 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 |
- 48 MP
- Aperture: f/1.8 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/2.0", Sony IMX582 (Exmor-RS CMOS) - Phase autofocus - 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 |
- |
| 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) |
- 8 MP
- Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.12 micron - Sensor: 1/4.0", Sony IMX355 (Exmor-RS CMOS) |
| Macro lens | - |
- 5 MP
- Aperture: f/2.4 |
| Depth lens | - |
- 2 MP
- Aperture: f/2.4 |
| Camera features |
- Bokeh mode
- Pro mode - RAW support |
- Bokeh mode
- Pro mode |
| Samples | Photo samples of Samsung Galaxy S21 from DxOMark | Photo samples of Samsung Galaxy A33 5G from DxOMark |
| Megapixels | 10 megapixels | 13 megapixels |
| Image resolution | 3872 x 2592 | 4160 x 3120 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | - |
| Pixel size | 1.22 microns | - |
| Sensor type | CMOS | CMOS |
| Sensor size | 1/3.24" | - |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 30 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 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 | 5.1 |
| Bluetooth features | LE, A2DP | PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 2 |
| USB features |
- Charging
- USB-Storage mode - USB-Host mode - OTG |
- Charging
- USB-Storage mode - OTG |
| GPS | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou, Galileo, QZSS |
| NFC * | Yes | Depends on the region |
| Infrared port | No | No |
| Number of SIM * | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support * | Yes | No |
| Hybrid slot | No | Yes |
| LTE Cat * | 24 | 18 |
| 5G support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | Yes |
Speakers test
Max loudness
Other
| Category | Flagship | Mid-range |
| Announced | January 2021 | March 2022 |
| Release date | February 2021 | April 2022 |
| SAR (head) | 0.46 W/kg | - |
| SAR (body) | 1.51 W/kg | - |
| Sensors |
- Hall-effect sensor
- Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Hall-effect sensor
- Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | - | Not included |
*
Disclaimer!
NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
After analyzing all the data, we think that the Samsung Galaxy S21 is definitely a better buy.