Samsung Galaxy S25 vs Galaxy S20
Here we compared two flagship smartphones: the 6.2-inch Samsung Galaxy S25 (with Qualcomm Snapdragon 8 Elite) that was released on January 22, 2025, against the Samsung Galaxy S20, which is powered by Exynos 9 Octa 990 and came out 5 years before. 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 S25
- 3.1x better performance in AnTuTu Benchmark (2097K versus 680K)
- The rear camera has a 3x optical zoom
- Has 50% more RAM: 12GB versus 8GB
- Newer Bluetooth version (v5.4)
- The phone is 5 years newer
- More recent OS version: Android 15 versus 13
- More energy-efficient CPU – Snapdragon 8 Elite
- Compatible with the latest Wi-Fi 7 wireless networks
- Faster storage type - UFS 4.0 versus UFS 3.0
- 2.5x faster in single-core GeekBench 6 test: 2813 and 1139 points
Reasons to consider the Samsung Galaxy S20
- 35% higher pixel density (563 vs 416 PPI)
- Expandable storage via MicroSD card up to 1000GB
- Slow-motion recording at 960FPS
- Has 2 SIM card slots
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
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | Dynamic AMOLED | Dynamic AMOLED |
| Size | 6.2 inches | 6.2 inches |
| Resolution | 1080 x 2340 pixels | 1440 x 3200 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 416 ppi | 563 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (1-120 Hz) | No |
| Max rated brightness | 2600 nits | 800 nits |
| HDR support | Yes, HDR10+ | Yes, HDR10+ |
| Touch sampling rate | 240 Hz | - |
| Screen protection | Gorilla Glass Victus 2 | Corning Gorilla Glass 6 |
| Screen-to-body ratio | 91.1% | 88.5% |
| Display features | - DCI-P3 - Always-On Display |
- DCI-P3 - Always-On Display |
| RGB color space | - | 99.8% |
| PWM | - | 242 Hz |
| Response time | - | 8.5 ms |
| Contrast | - | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 146.9 mm (5.78 inches) | 151.7 mm (5.97 inches) |
| Width | 70.5 mm (2.78 inches) | 69.1 mm (2.72 inches) |
| Thickness | 7.2 mm (0.28 inches) | 7.9 mm (0.31 inches) |
| Weight | 162 g (5.71 oz) | 163 g (5.75 oz) |
| Waterproof | IP68 | IP68 |
| Advanced cooling | Vapor chamber | - |
| Rear material | Glass | Glass |
| Frame material | Metal | Metal |
| Colors | Black, Silver, Gray, Blue, Green, Pink | Gray, Blue, Red |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Elite | Samsung Exynos 9 Octa 990 |
| Max clock | 4470 MHz | 3020 MHz |
| CPU cores | 8 (2 + 6) | 8 (2 + 2 + 4) |
| Architecture | - 6 cores at 3.53 GHz: Oryon (Phoenix M) - 2 cores at 4.32 GHz: Oryon (Phoenix L) |
- 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 |
| Manufacturing | TSMC | Samsung |
| Lithography process | 3 nanometers | 7 nanometers |
| Neural processor (NPU) | Hexagon | Yes |
| Graphics | Adreno 830 | Mali-G77 MP11 |
| GPU shading units | 1536 | 704 |
| GPU clock | 1100 MHz | 550 MHz |
| FLOPS | ~3379.2 GFLOPS | ~1126 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
| CPU | 571908 | 206940 |
| GPU | 852484 | 180770 |
| Memory | 390704 | 136999 |
| UX | 282152 | 155352 |
| Total score | 2097248 | 680061 |
| Samples | Less than 3 | [11 tests] |
3DMark Wild Life Performance
| Max surface temperature | - | 49.7 °C |
| Stability | - | 51% |
| Graphics test | - | 25 FPS |
| Graphics score | - | 4221 |
PCMark 3.0
| Web score | - | 9127 |
| Video editing | - | 6051 |
| Photo editing | - | 30620 |
| Data manipulation | - | 8331 |
| Writing score | - | 13124 |
Memory
| RAM size | 12 GB | 8 GB |
| Memory type | LPDDR5X | LPDDR5 |
| Memory clock | 5333 MHz | 3200 MHz |
| Channels | 2 | 2 |
| Storage size | 128, 256, 512 GB | 128 GB |
| Storage type | UFS 4.0 | UFS 3.0 |
| Memory card | No | MicroSD |
| Memory card max size | - | Up to 1000 GB |
Software
| Operating system | Android 15 | Android 10.0 (Can be upgraded to Android 13) |
| ROM | One UI 7.0 | One UI 5.1 |
| OS size | 30.1 GB | 20.1 GB |
Battery
| Capacity | 4000 mAh | 4000 mAh |
| Max charge power | 25 W | 25 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 (63% in 30 min) | Yes (100% in 75 min) |
| Full charging time | 1:10 hr | 1:15 hr |
| Web browsing | - | 06:49 hr |
| Watching video | - | 10:33 hr |
| Gaming | - | 04:30 hr |
| Standby | - | 69 hr |
General battery life
Main camera
| Matrix | 50 megapixels | 12 megapixels |
| Image resolution | 8160 x 6120 | 4000 x 3000 |
| Zoom | Optical, 3x | Optical, 1.1x |
| Flash | LED | LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 30FPS | Up to 24FPS |
| 4K video recording | Up to 60FPS | Up to 60FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 240 FPS (1080p) | 960 FPS (720p) |
| Angle of widest lens | 120° | 120° |
| Lenses | 1) Standard: 50 MP 2) Telephoto: 10 MP 3) Ultrawide: 12 MP |
1) Standard: 12 MP 2) Telephoto: 64 MP 3) Ultrawide: 12 MP |
| Camera features | - Bokeh mode - Pro mode - RAW support |
- Bokeh mode - Pro mode - RAW support |
| Image resolution | 50 MP | 12 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 24 mm | 26 mm |
| Sensor | Samsung ISOCELL GN3 | Samsung S5K2LD |
| Sensor size | 1/1.56" | 1/1.76" |
| Pixel size | 1 micron | 1.8 micron |
| Autofocus | Phase autofocus (Dual Pixel) | Phase autofocus (Dual Pixel) |
| Stabilization | Optical | Optical |
| Image resolution | 10 MP | 64 MP |
| Aperture | f/2.4 | f/2.0 |
| Focal length | 67 mm | - |
| Sensor | Samsung ISOCELL 3K1 | Samsung Bright S5KGW2 |
| Sensor size | 1/3.94" | 1/1.72" |
| Pixel size | 1 micron | 0.8 micron |
| Stabilization | Optical | Optical |
| Image resolution | 12 MP | 12 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 13 mm | 13 mm |
| Sensor | Sony IMX564 | Samsung S5K2LA |
| Sensor size | 1/2.55" | 1/2.55" |
| Pixel size | 1.4 micron | 1.4 micron |
| Stabilization | Digital | Digital |
Selfie camera
| Megapixels | 12 megapixels | 10 megapixels |
| Image resolution | 4000 x 3000 | 2592 x 3872 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | 26 mm |
| Sensor | Samsung S5K3LU | Samsung S5K3J1 |
| Sensor size | 1/3.2" | 1/3.2" |
| Pixel size | 1.12 micron | 1.22 micron |
| Autofocus | Phase autofocus | Phase autofocus (Dual Pixel) |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) | 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 Hotspot - Wi-Fi Display |
| Bluetooth version | 5.4 | 5 |
| Bluetooth features | LE | LE, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.1 |
| USB features | - Charging - USB-Storage mode - OTG |
- Charging - USB-Storage mode - OTG |
| DisplayPort | Yes, DP 1.2 | - |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS | GPS, GLONASS, Beidou, Galileo |
| NFC* | Yes | Yes |
| Infrared port | No | No |
| Number of SIM* | 1 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | Yes | Yes |
| Hybrid slot | No | Yes |
| LTE Cat* | 20 | 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
Other
| Category | Flagship | Flagship |
| Announced | January 2025 | February 2020 |
| Release date | February 2025 | March 2020 |
| Launch price | $799 | $999 |
| SAR (head) | - | 0.28 W/kg |
| SAR (body) | - | 1.52 W/kg |
| Sensors | - Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Barometer - Proximity sensor - Gyroscope - Accelerometer - Compass - Fingerprint |
| Bundled charger | Not included | - |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.