Samsung Galaxy A51 vs A15 4G
38
out of 100
VS
46
out of 100
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 A15 4G, which is powered by MediaTek Helio G99 and came out 4 years after. 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
- Slow-motion recording at 960FPS
- Ability to record video in 4K resolution
- Weighs 28 grams less
- The front-facing camera can record video at 4K
Reasons to consider the Samsung Galaxy A15 4G
- Shows 48% longer battery life (26:31 vs 17:53 hours)
- Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
- Higher display refresh rate – 90 Hz
- 48% better performance in AnTuTu Benchmark (522K versus 352K)
- Delivers 27% higher peak brightness (806 against 635 nits)
- Newer Bluetooth version (v5.3)
- More recent OS version: Android 16 versus 13
- More energy-efficient CPU – Helio G99
- The phone is 4 years newer
- Supports higher wattage charging (25W versus 15W)
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 DeviceFacts 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 2340 pixels |
| Aspect ratio | 20:9 | 19.5:9 |
| PPI | 405 ppi | 396 ppi |
| Refresh rate | 60 Hz | 90 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 400 nits | 800 nits |
| HDR support | No | No |
| Screen protection | Corning Gorilla Glass 3 | Tempered glass |
| Screen-to-body ratio | 87.5% | 84.4% |
| Display features | - Always-On Display | - DCI-P3 |
| RGB color space | 98.8% | 100% |
| PWM | 242 Hz | 187 Hz |
| Response time | 25 ms | 1 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 158.5 mm (6.24 inches) | 160.1 mm (6.3 inches) |
| Width | 73.6 mm (2.9 inches) | 76.8 mm (3.02 inches) |
| Thickness | 7.9 mm (0.31 inches) | 8.4 mm (0.33 inches) |
| Weight | 172 g (6.07 oz) | 200 g (7.05 oz) |
| Waterproof | No | No |
| Rear material | Plastic | Plastic |
| Frame material | Plastic | Plastic |
| Colors | White, Black | Black, Blue, Yellow |
| Fingerprint scanner | Yes, in-display | Yes, in-button |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 9 Octa 9611 | MediaTek Helio G99 |
| Max clock | 2300 MHz | 2200 MHz |
| CPU cores | 8 (4 + 4) | 8 (2 + 6) |
| Architecture | - 4 cores at 1.7 GHz: Cortex-A53 - 4 cores at 2.3 GHz: Cortex-A73 |
- 6 cores at 2 GHz: Cortex-A55 - 2 cores at 2.2 GHz: Cortex-A76 |
| Manufacturing | Samsung | TSMC |
| Lithography process | 10 nanometers | 6 nanometers |
| Neural processor (NPU) | Yes | Yes |
| Graphics | Mali-G72 MP3 | Mali-G57 MC2 |
| GPU shading units | 36 | 64 |
| GPU clock | 850 MHz | 1000 MHz |
| FLOPS | ~61.2 GFLOPS | ~128 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 745 | 32758 |
| Single-core score | 372 | 708 |
| Multi-core score | 1204 | 1862 |
AnTuTu Benchmark 11
| CPU | 135389 | 203294 |
| GPU | 30103 | 42919 |
| Memory | 90583 | 120509 |
| UX | 96624 | 155353 |
| Total score | 352699 | 522075 |
| Samples | [10 tests] | [18 tests] |
3DMark Steel Nomad Light
| Graphics test | - | 1 FPS |
| Graphics score | - | 130 |
PCMark 3.0
| Web score | - | 9148 |
| Video editing | - | 4687 |
| Photo editing | - | 14623 |
| Data manipulation | - | 7719 |
| Writing score | - | 11588 |
Recent User Tests
Samsung Galaxy A51
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-08-30 (Aginves) | AnTuTu 11 | 357049 |
| 📘 2026-08-28 (ROBIZ) | AnTuTu 11 | 331364 |
| 📘 2026-07-15 (Somya Lohiya) | AnTuTu 11 | 298360 |
| 📘 2026-06-20 (14burgos) | AnTuTu 11 | 393276 |
| 📘 2026-06-15 (Robiz) | AnTuTu 11 | 302904 |
Samsung Galaxy A15 4G
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-10-15 (Matheos) | AnTuTu 12 | 621573 |
| 📘 2026-09-23 (LEADER OF DAWN) | Geekbench 7 CPU | 664 / 2074 |
| 📘 2026-08-31 (Muhammedali) | AnTuTu 11 | 503324 |
| 📘 2026-08-30 (Yusif) | AnTuTu 11 | 531994 |
| 📘 2026-07-24 (LEADER OF DAWN) | Geekbench 6 CPU | 724 / 1991 |
Memory
| RAM size | 4 GB | 4 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 1866 MHz | 2133 MHz |
| Channels | 2 | 2 |
| Storage size | 64 GB | 128 GB |
| Storage type | UFS 2.0 | UFS 2.2 |
| 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 14 (Can be upgraded to Android 16) |
| ROM | One UI 5.1 | One UI 8.5 |
| OS size | 23 GB | 23 GB |
| OS updates | 2 years | 2 years |
| Security updates | 4 years | 3 years |
Battery
| Capacity | 4000 mAh | 5000 mAh |
| Max charge power | 15 W | 25 W |
| Battery type | Li-Po | Li-Ion |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | No |
| Fast charging | Yes (40% in 35 min) | Yes (47% in 30 min) |
| Full charging time | 1:50 hr | 1:21 hr |
| Web browsing | 07:15 hr | 09:21 hr |
| Watching video | 11:25 hr | 15:42 hr |
| Gaming | 04:49 hr | 07:54 hr |
| Standby | 81 hr | 137 hr |
General battery life
Smartphones With Long Battery Life (#120th place)
Main camera
| Matrix | 48 megapixels | 50 megapixels |
| Image resolution | 8000 x 6000 | 8160 x 6120 |
| Zoom | Digital | Digital |
| Flash | LED | LED |
| Stabilization | Digital | Digital |
| 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 | 1) Standard: 48 MP 2) Ultrawide: 12 MP 3) Macro: 5 MP 4) Depth: 5 MP |
1) Standard: 50 MP 2) Ultrawide: 5 MP 3) Macro: 2 MP |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode |
| Image resolution | 48 MP | 50 MP |
| Aperture | f/2.0 | f/1.8 |
| Focal length | 26 mm | 26 mm |
| Sensor | Sony IMX582 | Hynix Hi5022Q |
| Sensor size | 1/2" (≈ 0.5 inch) | 1/2.8" (≈ 0.36 inch) |
| Pixel size | 0.8 micron | 0.64 micron |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
| Image resolution | 12 MP | 5 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 13 mm | 17 mm |
| Sensor | - | SmartSense SC501CS |
| Sensor size | - | 1/5" (≈ 0.2 inch) |
| Pixel size | 1.12 micron | 1.12 micron |
| Stabilization | Digital | Digital |
| Image resolution | 5 MP | 2 MP |
| Aperture | f/2.4 | f/2.4 |
| Focal length | 40 mm | - |
| Sensor | - | GalaxyCore GC02M1 |
| Pixel size | 1.12 micron | - |
| Stabilization | Digital | No |
Selfie camera
| Megapixels | 32 megapixels | 13 megapixels |
| Image resolution | 6560 x 4928 | 4128 x 3096 |
| Aperture | f/2.2 | f/2.0 |
| Focal length | 26 mm | 26 mm |
| Sensor | Samsung S5KGD1 | GalaxyCore GC013A |
| Sensor size | 1/2.8" (≈ 0.36 inch) | 1/3.06" (≈ 0.33 inch) |
| Pixel size | 0.8 micron | 1.12 micron |
| Autofocus | No | No |
| Stabilization | Digital | No |
| Video resolution | 2160p (4K) at 30 FPS | 1080p (Full HD) at 30 FPS |
| Depth sensor (TOF 3D) | No | No |
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 | 5.3 |
| Bluetooth features | PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP | LE |
| 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 | Depends on the region |
| 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 | 13 |
| 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 | December 2023 |
| Release date | December 2019 | December 2023 |
| Launch price (MSRP) | $399 | $170 |
| Successor | - Samsung Galaxy A57 5G | - Samsung Galaxy A17 4G |
| SAR (head) | 0.596 W/kg | - |
| SAR (body) | 1.45 W/kg | - |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | - | Not included |
*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 A15 4G is definitely a better buy.
Cast your vote
Total votes: 78