Samsung Galaxy S21 vs Galaxy A25
68out of 100
Samsung Galaxy S21
VS
58out of 100
Samsung Galaxy A25
We have conducted a comparison between two smartphones: the Samsung Galaxy S21, featuring a 6.2-inch display and Exynos 2100 chipset, launched on January 14, 2021, and the Samsung Galaxy A25, equipped with Exynos 1280 processor, released 2 years and 11 months later. This page provides detailed tests, specifications, advantages, and disadvantages of both devices.
Review
Evaluation of Samsung Galaxy S21 and Galaxy A25 crucial features
| Display Screen quality, color accuracy, brightness Galaxy S21 78 Galaxy A25 86 | Camera Photo and video recording quality Galaxy S21 76 Galaxy A25 46* |
| Performance CPU and memory performance (apps, system) Galaxy S21 56 Galaxy A25 40 | Gaming Capabilities for playing modern games Galaxy S21 54 Galaxy A25 29 |
| Battery Battery life, charging type and speed Galaxy S21 57 Galaxy A25 63 | Connectivity Networks, ports, data transmission Galaxy S21 90 Galaxy A25 73 |
Tests and specifications
Comparison table of technical specifications and tests
Phone:
vs
Display
| Type | Dynamic AMOLED | Super AMOLED |
| Size | 6.2 inches | 6.5 inches |
| Resolution | 1080 x 2400 pixels | 1080 x 2340 pixels |
| Aspect ratio | 20:9 | 19.5:9 |
| PPI | 421 ppi | 396 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 800 nits | 1000 nits |
| HDR support | Yes, HDR10+ | No |
| Screen protection | Gorilla Glass Victus | Tempered glass |
| Screen-to-body ratio | 85.9% | 84.2% |
| Display features | – DCI-P3 – Always-On Display | – DCI-P3 – Always-On Display |
| RGB color space | 99.5% | 145.1% |
| PWM | 240 Hz | 119 Hz |
| Response time | 5 ms | 1 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Design and build
| Height | 151.7 mm (5.97 inches) | 161 mm (6.34 inches) |
| Width | 71.2 mm (2.8 inches) | 76.5 mm (3.01 inches) |
| Thickness | 7.9 mm (0.31 inches) | 8.3 mm (0.33 inches) |
| Weight | 169 g (5.96 oz) | 197 g (6.95 oz) |
| Waterproof | IP68 | No |
| Rear material | Plastic | Plastic |
| Frame material | Metal | Plastic |
| Colors | White, Gray, Pink, Purple | Black, Blue, Yellow |
| Fingerprint scanner | Yes, in-display | Yes, in-button |
Performance
Tests of Samsung Galaxy S21 and Samsung Galaxy A25 in the benchmarks
| 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 |
| Manufacturing | Samsung | Samsung |
| Lithography process | 5 nanometers | 5 nanometers |
| Neural processor (NPU) | Yes | Yes |
| Graphics | Mali-G78 MP14 | Mali-G68 MP4 |
| GPU shading units | 896 | – |
| GPU clock | 854 MHz | 972 MHz |
| FLOPS | ~1530.4 GFLOPS | ~487 GFLOPS |
Memory
| RAM size | 8 GB | 6, 8 GB |
| Memory type | LPDDR5 | LPDDR4X |
| Memory clock | 2750 MHz | 2133 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 14) | Android 14 |
| ROM | One UI 6.0 | One UI 6 |
| OS size | 28.1 GB | 20 GB |
Battery
| Capacity | 4000 mAh | 5000 mAh |
| Max charge power | 25 W | 25 W |
| Battery type | Li-Ion | Li-Ion |
| Replaceable | No | No |
| Wireless charging | Yes (15 W) | No |
| Reverse charging | Yes, (wireless) | No |
| Fast charging | Yes (55% in 50 min) | Yes (49% in 30 min) |
| Full charging time | 1:35 hr | 1:24 hr |
| Web browsing | 06:01 hr | 06:44 hr |
| Watching video | 11:06 hr | 11:34 hr |
| Gaming | 04:21 hr | 04:52 hr |
| Standby | 95 hr | 91 hr |
Main camera
| Matrix | 12 megapixels | 50 megapixels |
| Image resolution | 4000 x 3000 | 8160 x 6120 |
| 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) | 240 FPS (720p) |
| Angle of widest lens | 120° | 120° |
| 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 | 27 mm |
| Sensor | Sony IMX555 | Samsung ISOCELL S5KJN1 |
| Sensor size | 1/1.76″ | 1/2.76″ |
| Pixel size | 1.8 micron | 0.64 micron |
| Autofocus | Phase autofocus (Dual Pixel) | Phase 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 | – |
| Sensor | Sony IMX563 | Samsung ISOCELL (S5K)4HA |
| Sensor size | 1/2.55″ | 1/4″ |
| Pixel size | 1.4 micron | 1.12 micron |
| Stabilization | Digital | Digital |
| Image resolution | – | 2 MP |
| Aperture | – | f/2.4 |
| Sensor | – | GalaxyCore GC02M1 |
| Stabilization | – | No |
Selfie camera
| Megapixels | 10 megapixels | 13 megapixels |
| Image resolution | 3872 x 2592 | 4160 x 3120 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | – |
| Sensor | Sony IMX374 | Hynix Hi-1339 |
| Sensor size | 1/3.24″ | 1/3.06″ |
| Pixel size | 1.22 micron | 1.12 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 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 | 5.3 |
| 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, Beidou, Galileo |
| NFC* | Yes | Yes |
| 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 | Yes |
| FM radio | No | No |
| Dolby Atmos | Yes | Yes |
Other
| Category | Flagship | Mid-range |
| Announced | January 2021 | December 2023 |
| Release date | February 2021 | December 2023 |
| Launch price | $800 | $299 |
| SAR (head) | 0.46 W/kg | 0.46 W/kg |
| SAR (body) | 1.51 W/kg | 1.19 W/kg |
| Sensors | – Hall-effect sensor – Barometer – Proximity sensor – Gyroscope – Accelerometer – Ambient light sensor – Compass – Fingerprint | – Gyroscope – Accelerometer – Ambient light sensor – Compass – Fingerprint |
| Bundled charger | – | Not included |
