Samsung Galaxy S21 vs OnePlus 12R
68out of 100
Samsung Galaxy S21
VS
82out of 100
OnePlus 12R
In this analysis, we have conducted a comparison between two leading smartphones: the Samsung Galaxy S21, featuring a 6.2-inch display and equipped with the Exynos 2100 processor, which was launched on January 14, 2021, and the OnePlus 12R, powered by the Qualcomm Snapdragon 8 Gen 2 chipset, released three years and one month later. Within this comprehensive review, you will discover detailed tests, complete specifications, as well as the notable strengths and weaknesses of both devices.
Review
Evaluation of Samsung Galaxy S21 and OnePlus 12R crucial features
| Display Screen quality, color accuracy, brightness Galaxy S21 78 OnePlus 12R 93 | Camera Photo and video recording quality Galaxy S21 76 OnePlus 12R 74* |
| Performance CPU and memory performance (apps, system) Galaxy S21 56 OnePlus 12R 72 | Gaming Capabilities for playing modern games Galaxy S21 54 OnePlus 12R 87 |
| Battery Battery life, charging type and speed Galaxy S21 57 OnePlus 12R 92 | Connectivity Networks, ports, data transmission Galaxy S21 90 OnePlus 12R 84 |
Tests and specifications
Comparison table of technical specifications and tests
Phone:
vs
Display
| Type | Dynamic AMOLED | AMOLED |
| Size | 6.2 inches | 6.78 inches |
| Resolution | 1080 x 2400 pixels | 1264 x 2780 pixels |
| Aspect ratio | 20:9 | 19.8:9 |
| PPI | 421 ppi | 450 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | No | Yes |
| Max rated brightness | 800 nits | 4500 nits |
| HDR support | Yes, HDR10+ | Yes, Dolby Vision |
| Touch sampling rate | – | 360 Hz |
| Screen protection | Gorilla Glass Victus | Gorilla Glass Victus 2 |
| Screen-to-body ratio | 85.9% | 90.9% |
| Display features | – DCI-P3 – Always-On Display | – DCI-P3 – Always-On Display – DC Dimming |
| RGB color space | 99.5% | – |
| PWM | 240 Hz | – |
| Response time | 5 ms | – |
| Contrast | ∞ Infinity | – |
Design and build
| Height | 151.7 mm (5.97 inches) | 163.3 mm (6.43 inches) |
| Width | 71.2 mm (2.8 inches) | 75.3 mm (2.96 inches) |
| Thickness | 7.9 mm (0.31 inches) | 8.8 mm (0.35 inches) |
| Weight | 169 g (5.96 oz) | 207 g (7.3 oz) |
| Waterproof | IP68 | IP65 |
| Advanced cooling | – | Vapor chamber |
| Rear material | Plastic | Metal |
| Frame material | Metal | Metal |
| Colors | White, Gray, Pink, Purple | Gray, Blue |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Performance
Tests of Samsung Galaxy S21 and OnePlus 12R in the benchmarks
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Gen 2 |
| Max clock | 2900 MHz | 3200 MHz |
| CPU cores | 8 (1 + 3 + 4) | 8 (1 + 2 + 2 + 3) |
| 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 | – 3 cores at 2 GHz: Cortex-A510 – 2 cores at 2.8 GHz: Cortex-A710 – 2 cores at 2.8 GHz: Cortex-A715 – 1 core at 3.2 GHz: Cortex-X3 |
| L3 cache | – | 8 MB |
| Manufacturing | Samsung | TSMC |
| Lithography process | 5 nanometers | 4 nanometers |
| Neural processor (NPU) | Yes | Hexagon |
| Graphics | Mali-G78 MP14 | Adreno 740 |
| GPU shading units | 896 | 2560 |
| GPU clock | 854 MHz | 680 MHz |
| FLOPS | ~1530.4 GFLOPS | ~3481.6 GFLOPS |
Memory
| RAM size | 8 GB | 8, 16 GB |
| Memory type | LPDDR5 | LPDDR5X |
| Memory clock | 2750 MHz | 4200 MHz |
| Channels | 2 | 4 |
| Storage size | 128, 256 GB | 128, 256 GB |
| Storage type | UFS 3.1 | UFS 3.1 |
| Memory card | No | No |
Software
| Operating system | Android 11 (Can be upgraded to Android 14) | Android 14 |
| ROM | One UI 6.0 | OxygenOS 14 |
| OS size | 28.1 GB | – |
Battery
| Capacity | 4000 mAh | 5500 mAh |
| Max charge power | 25 W | 100 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 (70% in 15 min) |
| Full charging time | 1:35 hr | 0:25 hr |
| Web browsing | 06:01 hr | 10:10 hr |
| Watching video | 11:06 hr | 17:54 hr |
| Gaming | 04:21 hr | 06:00 hr |
| Standby | 95 hr | 135 hr |
Main camera
| Matrix | 12 megapixels | 50 megapixels |
| Image resolution | 4000 x 3000 | 8192 x 6144 |
| 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 60FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 960 FPS (720p) | 480 FPS (1080p) |
| Angle of widest lens | 120° | 112° |
| Lenses | 1) Standart: 12 MP 2) Telephoto: 64 MP 3) Ultrawide: 12 MP | 1) Standart: 50 MP 2) Ultrawide: 8 MP 3) Macro: 2 MP |
| Camera features | – Bokeh mode – Pro mode – RAW support | – Bokeh mode – Pro mode |
| Image resolution | 12 MP | 50 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 26 mm | 24 mm |
| Sensor | Sony IMX555 | Sony IMX890 |
| Sensor size | 1/1.76″ | 1/1.56″ |
| Pixel size | 1.8 micron | 1 micron |
| Autofocus | Phase autofocus (Dual Pixel) | Laser autofocus |
| Stabilization | Optical | Optical |
| Image resolution | 64 MP | – |
| Aperture | f/2.0 | – |
| Focal length | 28 mm | – |
| Sensor | Samsung Bright S5KGW2 | – |
| Sensor size | 1/1.72″ | – |
| Pixel size | 0.8 micron | – |
| Stabilization | Optical | – |
| Image resolution | 12 MP | 8 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 13 mm | 16 mm |
| Sensor | Sony IMX563 | Sony IMX355 |
| Sensor size | 1/2.55″ | 1/4.0″ |
| Pixel size | 1.4 micron | 1.12 micron |
| Stabilization | Digital | Digital |
| Image resolution | – | 2 MP |
| Aperture | – | f/2.4 |
| Focal length | – | 22 mm |
| Sensor | – | OmniVision OV02B |
| Sensor size | – | 1/5.0″ |
| Pixel size | – | 1.75 micron |
| Stabilization | – | Digital |
Selfie camera
| Megapixels | 10 megapixels | 16 megapixels |
| Image resolution | 3872 x 2592 | 4608 x 3456 |
| Aperture | f/2.2 | f/2.4 |
| Focal length | 26 mm | 26 mm |
| Sensor | Sony IMX374 | Samsung ISOCELL S5K3P9 |
| Sensor size | 1/3.24″ | 1/3.0″ |
| Pixel size | 1.22 micron | 1 micron |
| Autofocus | Phase autofocus (Dual Pixel) | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 1080p (Full HD) at 30 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 6 (802.11 a/b/g/n/ac/ax) | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) |
| 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 | 5.3 |
| Bluetooth features | LE, A2DP | LE |
| 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, Galileo |
| NFC* | Yes | Yes |
| Infrared port | No | Yes |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | Yes | No |
| Hybrid slot | No | No |
| LTE Cat* | 24 | 20 |
| 5G support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | Yes |
Other
| Category | Flagship | Flagship |
| Announced | January 2021 | January 2024 |
| Release date | February 2021 | February 2024 |
| Launch price | $800 | $499 |
| 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 | – Barometer – Proximity sensor – Gyroscope – Accelerometer – Ambient light sensor – Compass – Fingerprint |
| Bundled charger | – | Yes, 100 W |
