Samsung Galaxy A51 5G vs Galaxy A51
Here we compared two mid-range smartphones: the 6.5-inch Samsung Galaxy A51 5G (with Exynos 980) that was released on April 8, 2020, against the Samsung Galaxy A51, which is powered by Exynos 9 Octa 9611 and came out 4 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Select the amount of RAM to evaluate performance and value for money more precisely
Key differences
Reasons to consider the Samsung Galaxy A51 5G
- 82% better performance in AnTuTu Benchmark (640K versus 352K)
- 2.3x faster in single-core GeekBench 6 test: 863 and 372 points
- More energy-efficient CPU β Exynos 980
Reasons to consider the Samsung Galaxy A51
- Weighs 15 grams less
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
Select your primary usage scenario to get a more accurate NanoReview Score
Value for money (Beta)
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | Super AMOLED | Super AMOLED |
| Size | 6.5 inches | 6.5 inches |
| Resolution | 1080 x 2400 pixels | 1080 x 2400 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 405 ppi | 405 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 400 nits | 400 nits |
| HDR support | No | No |
| Screen protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
| Screen-to-body ratio | 87.3% | 87.5% |
| Display features | - Always-On Display | - Always-On Display |
| RGB color space | - | 98.8% |
| PWM | - | 242 Hz |
| Response time | - | 25 ms |
| Contrast | - | β Infinity |
Peak brightness test (auto)
Design and build
| Height | 158.9 mm (6.26 inches) | 158.5 mm (6.24 inches) |
| Width | 73.6 mm (2.9 inches) | 73.6 mm (2.9 inches) |
| Thickness | 8.7 mm (0.34 inches) | 7.9 mm (0.31 inches) |
| Weight | 187 g (6.6 oz) | 172 g (6.07 oz) |
| Waterproof | No | No |
| Rear material | Plastic | Plastic |
| Frame material | Metal | Plastic |
| Colors | White, Black, Pink | White, Black |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 980 | Samsung Exynos 9 Octa 9611 |
| Max clock | 2200 MHz | 2300 MHz |
| CPU cores | 8 (2 + 6) | 8 (4 + 4) |
| Architecture | - 6 cores at 1.8 GHz: Cortex-A55 - 2 cores at 2.2 GHz: Cortex-A77 |
- 4 cores at 1.7 GHz: Cortex-A53 - 4 cores at 2.3 GHz: Cortex-A73 |
| Manufacturing | Samsung | Samsung |
| Lithography process | 8 nanometers | 10 nanometers |
| Neural processor (NPU) | Yes | Yes |
| Graphics | Mali G76MP5 | Mali-G72 MP3 |
| GPU shading units | 120 | 36 |
| GPU clock | 728 MHz | 850 MHz |
| FLOPS | ~174.7 GFLOPS | ~61.2 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | - | 745 |
| Single-core score | 863 | 372 |
| Multi-core score | 2112 | 1204 |
AnTuTu Benchmark 11
| CPU | 274118 | 135389 |
| GPU | 61069 | 30103 |
| Memory | 117515 | 90583 |
| UX | 187915 | 96624 |
| Total score | 640617 | 352699 |
| Samples | Less than 3 | [10 tests] |
Recent User Tests
Samsung Galaxy A51 5G
| Date | Benchmark | Result |
|---|---|---|
| π 2026-04-07 (CORE CHEn) | AnTuTu 11 | 640617 |
Samsung Galaxy A51
| Date | Benchmark | Result |
|---|---|---|
| π 2026-08-30 (Aginves) | AnTuTu 11 | 357049 |
| π 2026-08-28 (ROBIZ) | AnTuTu 11 | 331364 |
| π 2026-07-15 (Somya Lohiya) | AnTuTu 11 | 298360 |
| π 2026-06-20 (14burgos) | AnTuTu 11 | 393276 |
| π 2026-06-15 (Robiz) | AnTuTu 11 | 302904 |
Memory
| RAM size | 4 GB | 4 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 1866 MHz | 1866 MHz |
| Channels | 2 | 2 |
| Storage size | 128 GB | 64 GB |
| Storage type | UFS 2.0 | UFS 2.0 |
| Memory card | MicroSD | MicroSD |
| Memory card max size | Up to 512 GB | Up to 512 GB |
Software
| Operating system | Android 10 (Can be upgraded to Android 13) | Android 10 (Can be upgraded to Android 13) |
| ROM | One UI 5.0 | One UI 5.1 |
| OS size | 22.7 GB | 23 GB |
| OS updates | 2 years | 2 years |
| Security updates | 4 years | 4 years |
Battery
| Capacity | 4500 mAh | 4000 mAh |
| Max charge power | 15 W | 15 W |
| Battery type | Li-Po | Li-Po |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | No |
| Fast charging | Yes (40% in 40 min) | Yes (40% in 35 min) |
| Full charging time | 2:05 hr | 1:50 hr |
| Web browsing | 07:25 hr | 07:15 hr |
| Watching video | 12:09 hr | 11:25 hr |
| Gaming | 05:11 hr | 04:49 hr |
| Standby | 81 hr | 81 hr |
General battery life
Main camera
| Matrix | 48 megapixels | 48 megapixels |
| Image resolution | 8000 x 6000 | 8000 x 6000 |
| Zoom | Digital | Digital |
| Flash | LED | LED |
| Stabilization | Digital | Digital |
| 8K video recording | No | No |
| 4K video recording | Up to 30FPS | Up to 30FPS |
| 1080p video recording | Up to 120FPS | Up to 30FPS |
| Slow motion | 960 FPS (720p) | 960 FPS (720p) |
| Angle of widest lens | 123Β° | 120Β° |
| Lenses | 1) Standard: 48 MP 2) Ultrawide: 12 MP 3) Macro: 5 MP 4) Depth: 5 MP |
1) Standard: 48 MP 2) Ultrawide: 12 MP 3) Macro: 5 MP 4) Depth: 5 MP |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode - Pro mode |
| Image resolution | 48 MP | 48 MP |
| Aperture | f/2.0 | f/2.0 |
| Focal length | 26 mm | 26 mm |
| Sensor | Samsung S5KGM2 | Sony IMX582 |
| Sensor size | 1/2" (β 0.5 inch) | 1/2" (β 0.5 inch) |
| Pixel size | 0.8 micron | 0.8 micron |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
| Image resolution | 12 MP | 12 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 13 mm | 13 mm |
| Pixel size | 1.12 micron | 1.12 micron |
| Stabilization | Digital | Digital |
| Image resolution | 5 MP | 5 MP |
| Aperture | f/2.4 | f/2.4 |
| Focal length | 40 mm | 40 mm |
| Pixel size | 1.12 micron | 1.12 micron |
| Stabilization | Digital | Digital |
DxOMark main camera tests
Photo quality
Video quality
Generic main camera score
| Samples | Photo samples of Samsung Galaxy A51 5G from DxOMark | - |
Selfie camera
| Megapixels | 32 megapixels | 32 megapixels |
| Image resolution | 6560 x 4928 | 6560 x 4928 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | 26 mm |
| Sensor | Samsung S5KGD1 | Samsung S5KGD1 |
| Sensor size | 1/2.8" (β 0.36 inch) | 1/2.8" (β 0.36 inch) |
| Pixel size | 0.8 micron | 0.8 micron |
| Autofocus | No | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 30 FPS | 2160p (4K) at 30 FPS |
| Depth sensor (TOF 3D) | No | No |
DxOMark front camera
| Photo | 100 | - |
| Video | 119 | - |
Connectivity
| Wi-Fi standard | Wi-Fi 5 (802.11 b/g/n/ac) | Wi-Fi 5 (802.11 b/g/n/ac) |
| Wi-Fi features | - Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 5 |
| Bluetooth features | PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP | PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 2 |
| USB features | - Charging - USB-Storage 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* | No | No |
| Hybrid slot | No | No |
| LTE Cat* | 12 | 12 |
| 5G support | Yes | No |
Sound
| Speakers | Mono | Mono |
| Headphone audio jack | Yes | Yes |
| FM radio | Yes | Yes |
| Dolby Atmos | Yes | Yes |
Speakers test
Max loudness
Other
| Category | Mid-range | Mid-range |
| Announced | April 2020 | December 2019 |
| Release date | June 2020 | December 2019 |
| Launch price (MSRP) | $499 | $399 |
| Successor | - Samsung Galaxy A57 5G | - Samsung Galaxy A57 5G |
| SAR (head) | 0.5 W/kg | 0.596 W/kg |
| SAR (body) | 1.55 W/kg | 1.45 W/kg |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- 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
After analyzing all the data, we think that the Samsung Galaxy A51 5G is definitely a better buy.
Cast your vote
Total votes: 494