Samsung Galaxy A51 vs Galaxy A23
Here we compared two smartphones: the 6.5-inch Samsung Galaxy A51 (with Exynos 9 Octa 9611) that was released on December 12, 2019, against the Samsung Galaxy A23, which is powered by Qualcomm Snapdragon 680 and came out 27 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 A51
- Delivers 37% higher peak brightness (640 against 468 nits)
- Slow-motion recording at 960FPS
- Ability to record video in 4K resolution
- Super AMOLED display (versus competitor's PLS TFT)
- Faster storage type - UFS 2.0 versus eMMC 5.1
- Weighs 23 grams less
- The front-facing camera can record video at 4K
Reasons to consider the Samsung Galaxy A23
- Shows 37% longer battery life (36:17 vs 26:33 hours)
- Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
- Higher display refresh rate – 90 Hz
- Optical image stabilization
- 26% better performance in AnTuTu Benchmark (269K versus 214K)
- More energy-efficient CPU – Snapdragon 680
- The phone is 2-years and 3-months newer
- 9% faster in single-core GeekBench 5 test: 386 and 353 points
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Review
Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation
Value for money
You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | Super AMOLED | PLS TFT |
| Size | 6.5 inches | 6.6 inches |
| Resolution | 1080 x 2400 pixels | 1080 x 2408 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 405 ppi | 400 ppi |
| Refresh rate | 60 Hz | 90 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 400 nits | 460 nits |
| HDR support | No | No |
| Screen protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 5 |
| Screen-to-body ratio | 87.4% | 83% |
| Display features | - Always-On Display | - |
| RGB color space | 98.8% | - |
| PWM | 242 Hz | - |
| Response time | 25 ms | - |
| Contrast | ∞ Infinity | - |
Peak brightness test (auto)
Design and build
| Height | 158.5 mm (6.24 inches) | 164.5 mm (6.48 inches) |
| Width | 73.6 mm (2.9 inches) | 76.9 mm (3.03 inches) |
| Thickness | 7.9 mm (0.31 inches) | 8.4 mm (0.33 inches) |
| Weight | 172 g (6.07 oz) | 195 g (6.88 oz) |
| Waterproof | No | No |
| Rear material | Plastic | Plastic |
| Frame material | Plastic | Plastic |
| Colors | White, Black | White, Black, Blue, Yellow |
| Fingerprint scanner | Yes, in-display | Yes, in home button |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 9 Octa 9611 | Qualcomm Snapdragon 680 |
| Max clock | 2300 MHz | 2400 MHz |
| CPU cores | 8 (4 + 4) | 8 (4 + 4) |
| Architecture | - 4 cores at 1.7 GHz: Cortex-A53 - 4 cores at 2.3 GHz: Cortex-A73 |
- 4 cores at 1.9 GHz: Kryo 265 Silver (Cortex-A53) - 4 cores at 2.4 GHz: Kryo 265 Gold (Cortex-A73) |
| Lithography process | 10 nanometers | 6 nanometers |
| Graphics | Mali-G72 MP3 | Adreno 610 |
| GPU clock | 850 MHz | 1114 MHz |
| FLOPS | ~259 GFLOPS | - |
Benchmarks
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
| CPU | 63753 | 81885 |
| GPU | 43839 | 48510 |
| Memory | 43507 | 64789 |
| UX | 62692 | 71783 |
| Total score | 214104 | 269226 |
3DMark Wild Life Performance
| Max surface temperature | 42.2 °C | - |
| Stability | 95% | 98% |
| Graphics test | 4 FPS | 2 FPS |
| Graphics score | 812 | 440 |
PCMark 3.0
| Web score | - | 6847 |
| Video editing | - | 4223 |
| Photo editing | - | 13565 |
| Data manipulation | - | 5749 |
| Writing score | - | 8441 |
Memory
| RAM size | 4, 6 GB | 4, 6, 8 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 1866 MHz | - |
| Channels | 2 | 2 |
| Storage size | 64, 128 GB | 32, 64, 128 GB |
| Storage type | UFS 2.0 | eMMC 5.1 |
| Memory card | MicroSD | MicroSD |
| Memory card max size | Up to 512 GB | Up to 1024 GB |
Software
| Operating system | Android 10 (Can be upgraded to Android 13) | Android 12 (Can be upgraded to Android 13) |
| ROM | One UI 5.0 | One UI 5.0 |
| OS size | 23 GB | 24 GB |
Battery
| Capacity | 4000 mAh | 5000 mAh |
| Charge power | 15 W | 25 W |
| Battery type | Li-Po | - |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | No |
| Fast charging | Yes (40% in 35 min) | Yes (32% in 30 min) |
| Full charging time | 1:50 hr | 1:43 hr |
| Web browsing | 09:34 hr | 13:42 hr |
| Watching video | 11:29 hr | 12:41 hr |
| Gaming | 05:12 hr | 06:33 hr |
| Standby | 83 hr | 127 hr |
General battery life
Camera
| Matrix | 48 megapixels | 50 megapixels |
| Image resolution | 8000 x 6000 | 8700 x 5800 |
| Zoom | Digital | Digital |
| Flash | LED | LED |
| Stabilization | Digital | Optical |
| 8K video recording | No | No |
| 4K video recording | Up to 30FPS | No |
| 1080p video recording | Up to 30FPS | Up to 30FPS |
| Slow motion | 960 FPS (720p) | 120 FPS (720p) |
| Angle of widest lens | 120° | - |
| Lenses | 4 (48 MP + 12 MP + 5 MP + 5 MP) | 4 (50 MP + 5 MP + 2 MP + 2 MP) |
| Wide (main) lens | - 48 MP - Aperture: f/2.0 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/2", Sony IMX582 (Exmor-RS CMOS) - Phase autofocus |
- 50 MP - Aperture: f/1.8 - Focal length: 26 mm - Phase autofocus - Optical stabilization |
| Ultra-wide lens | - 12 MP - Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.12 micron |
- 5 MP - Aperture: f/2.2 - Pixel size: 1.12 micron - Sensor: 1/5" (CMOS) |
| Macro lens | - 5 MP - Aperture: f/2.4 - Focal length: 40 mm - Pixel size: 1.12 micron |
- 2 MP - Aperture: f/2.4 |
| Depth lens | - 5 MP - Aperture: f/2.2 - Pixel size: 1.12 micron - Sensor: 1/5.0" (CMOS) |
- 2 MP - Aperture: f/2.4 |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode - Pro mode |
| Megapixels | 32 megapixels | 8 megapixels |
| Image resolution | 6560 x 4928 | 3264 x 2448 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | - |
| Pixel size | 0.8 microns | - |
| Sensor type | ISOCELL CMOS | CMOS |
| Sensor size | 1/2.8" | - |
| Video resolution | 2160p (4K) at 30 FPS | 1080p (Full HD) at 30 FPS |
Connectivity
| Wi-Fi standard | Wi-Fi 5 (802.11 b/g/n/ac) | Wi-Fi 5 (802.11 a/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, QZSS |
| 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 | - |
| 5G support | No | 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 | Budget |
| Announced | December 2019 | March 2022 |
| Release date | December 2019 | March 2022 |
| SAR (head) | 0.596 W/kg | - |
| SAR (body) | 1.45 W/kg | - |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Gyroscope - Accelerometer - Compass - Fingerprint |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
If the display, battery life, and design are more important to you, then choose the Samsung Galaxy A23. But if the performance and camera are more of a priority – go for the Samsung Galaxy A51.
Cast your vote
Total votes: 237