Xiaomi Redmi A2 vs Samsung Galaxy S25 Ultra
33
out of 100
VS
87
out of 100
Here we compared two smartphones: the 6.52-inch Xiaomi Redmi A2 (with MediaTek Helio G36) that was released on March 24, 2023, against the Samsung Galaxy S25 Ultra, which is powered by Qualcomm Snapdragon 8 Elite and came out 1 year and 10 months 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 Xiaomi Redmi A2
- Expandable storage via MicroSD card up to 512GB
- Has 2 SIM card slots
- Weighs 26 grams less
- Includes a 3.5 mm headphone audio jack port
Reasons to consider the Samsung Galaxy S25 Ultra
- Waterproof body (IP68 classification)
- 18.8x better performance in AnTuTu Benchmark (3128K versus 166K)
- Has 6x more RAM: 12GB versus 2GB
- The rear camera has a 5x optical zoom
- Delivers 277% higher peak brightness (1430 against 379 nits)
- Higher display refresh rate – 120 Hz
- 85% higher pixel density (498 vs 269 PPI)
- Modern USB Type-C port
- Supports higher wattage charging (45W versus 10W)
- Handles wireless charging up to 25W
- Thinner bezels – 11.3% more screen real estate
- Newer Bluetooth version (v5.4)
- Optical image stabilization
- Has a 0.38 inch larger screen size
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.
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 | IPS LCD | Dynamic AMOLED |
| Size | 6.52 inches | 6.9 inches |
| Resolution | 720 x 1600 pixels | 1440 x 3120 pixels |
| Aspect ratio | 20:9 | 19.5:9 |
| PPI | 269 ppi | 498 ppi |
| Refresh rate | 60 Hz | 120 Hz |
| Adaptive refresh rate | No | Yes (1-120 Hz) |
| Max rated brightness | 400 nits | - |
| Max rated brightness in HDR | - | 2600 nits |
| HDR support | No | Yes, HDR10+ |
| Touch sampling rate | - | 240 Hz |
| Screen protection | Tempered glass | Corning Gorilla Armor 2 |
| Screen-to-body ratio | 81.1% | 92.4% |
| Display features | - | - DCI-P3 - Always-On Display - DC Dimming |
| RGB color space | 95% | 97.7% |
| PWM | Not detected | 240 Hz |
| Response time | 30 ms | 1 ms |
| Contrast | 1303:1 | ∞ Infinity |
Screen space comparison
Galaxy S25 Ultra
6.9″ (19.5:9 ratio) = 18.1 in2
Redmi A2
6.52″ (20:9 ratio) = 15.9 in2
~13% more screen space
Peak brightness test (auto)
Design and build
| Height | 164.9 mm (6.49 inches) | 162.8 mm (6.41 inches) |
| Width | 76.8 mm (3.02 inches) | 77.6 mm (3.06 inches) |
| Thickness | 9.1 mm (0.36 inches) | 8.2 mm (0.32 inches) |
| Weight | 192 g (6.77 oz) | 218 g (7.69 oz) |
| Waterproof | No | IP68 |
| Advanced cooling | - | Vapor chamber |
| Rear material | Plastic | Glass |
| Frame material | Plastic | Metal |
| Colors | Black, Blue, Green | Black, Silver, Gray, Blue |
| Fingerprint scanner | No | Yes, in-display |
| Repairability | - | Good (3.23/5) |
| Drop resistance | - | Excellent (A) · 270 drops |
Screen-to-body ratio
Performance
| Chipset | MediaTek Helio G36 | Qualcomm Snapdragon 8 Elite |
| Max clock | 2200 MHz | 4470 MHz |
| CPU cores | 8 (4 + 4) | 8 (2 + 6) |
| Architecture | - 4 cores at 1.8 GHz: Cortex-A53 - 4 cores at 2.2 GHz: Cortex-A53 |
- 6 cores at 3.53 GHz: Oryon (Phoenix M) - 2 cores at 4.32 GHz: Oryon (Phoenix L) |
| L3 cache | - | 8 MB |
| Manufacturing | TSMC | TSMC |
| Lithography process | 12 nanometers | 3 nanometers |
| Neural processor (NPU) | No | Hexagon |
| Graphics | PowerVR GE8320 | Adreno 830 |
| GPU shading units | 32 | 1536 |
| GPU clock | 680 MHz | 1100 MHz |
| FLOPS | ~43.5 GFLOPS | ~3379.2 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | - | 26581 |
| Single-core score | 477 | 3202 |
| Multi-core score | 1523 | 10347 |
AnTuTu Benchmark 11
| CPU | 64456 | 987646 |
| GPU | 15554 | 1190760 |
| Memory | 41038 | 362214 |
| UX | 45071 | 587932 |
| Total score | 166119 | 3128552 |
| Samples | Less than 3 | [66 tests] |
3DMark Steel Nomad Light
| Stability | - | 61% |
| Graphics test | - | 17 FPS |
| Graphics score | - | 2272 |
3DMark Solar Bay
| Graphics test | - | 40 FPS |
| Section 1 | - | 50 FPS |
| Section 2 | - | 40 FPS |
| Section 3 | - | 29 FPS |
| Graphics score | - | 10441 |
3DMark Wild Life Extreme
| Stability | - | 56% |
| Graphics test | - | 34 FPS |
| Graphics score | - | 5827 |
PCMark 3.0
| Web score | - | 21582 |
| Video editing | - | 8625 |
| Photo editing | - | 34425 |
| Data manipulation | - | 17556 |
| Writing score | - | 26844 |
AnTuTu 11 Ranking List (#87th place)
Recent User Tests
Xiaomi Redmi A2
No benchmark results yet
Samsung Galaxy S25 Ultra
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-10-09 (IceBaer) | AnTuTu 12 | 3395994 |
| 📘 2026-10-04 (Gun park) | AnTuTu 12 | 3085318 |
| 📘 2026-10-04 (potatowan) | Geekbench 7 CPU | 2791 / 10180 |
| 📘 2026-10-03 (Apple Slayer) | AnTuTu 12 | 3529678 |
| 📘 2026-10-02 (potatowan) | AnTuTu 12 | 3590956 |
Memory
| RAM size | 2 GB | 12 GB |
| Memory type | LPDDR4X | LPDDR5X |
| Memory clock | 1600 MHz | 5300 MHz |
| Channels | 2 | 4 |
| Storage size | 32 GB | 256 GB |
| Storage type | eMMC 5.1 | UFS 4.0 |
| Memory card | MicroSD | No |
| Memory card max size | Up to 512 GB | - |
Software
| Operating system | Android 12 | Android 15 (Can be upgraded to Android 17) |
| ROM | MIUI 14 | One UI 9.0 |
| OS size | - | 30.4 GB |
| OS updates | - | 7 years |
| Security updates | - | 7 years |
Battery
| Capacity | 5000 mAh | 5000 mAh |
| Max charge power | 10 W | 45 W |
| Battery type | Li-Ion | Li-Ion |
| Replaceable | No | No |
| Wireless charging | No | Yes (25 W) |
| Reverse charging | No | Yes, (wireless) |
| Bypass charging | - | Yes |
| Fast charging | No | Yes (72% in 30 min) |
| Full charging time | 2:43 hr | 0:59 hr |
| Battery cycles | - | 2000 cycles |
| Web browsing | - | 11:10 hr |
| Watching video | - | 19:32 hr |
| Gaming | - | 06:22 hr |
| Standby | - | 132 hr |
General battery life
Smartphones With Long Battery Life (#69th place)
Main camera
| Matrix | 8 megapixels | 200 megapixels |
| Image resolution | 3264 x 2448 | 16320 x 12240 |
| Zoom | Digital | Optical, 5x |
| Flash | LED | LED |
| Stabilization | Digital | Optical |
| 8K video recording | No | Up to 30FPS |
| 4K video recording | No | Up to 120FPS |
| 1080p video recording | Up to 30FPS | Up to 240FPS |
| Slow motion | No | 240 FPS (1080p) |
| Angle of widest lens | - | 120° |
| Lenses | 1) Standard: 8 MP 2) Depth: 0.08 MP |
1) Standard: 200 MP 2) Telephoto: 50 MP 3) Telephoto: 10 MP 4) Ultrawide: 50 MP |
| Camera features | - Bokeh mode | - Bokeh mode - Pro mode - RAW support |
| Image resolution | 8 MP | 200 MP |
| Aperture | f/2.0 | f/1.7 |
| Focal length | - | 23 mm |
| Sensor | - | Samsung ISOCELL S5KHP2 |
| Sensor size | - | 1/1.3" (≈ 0.77 inch) |
| Pixel size | - | 0.6 micron |
| Autofocus | Phase autofocus | Laser autofocus |
| Stabilization | Digital | Optical |
| Image resolution | - | 50 MP |
| Aperture | - | f/3.4 |
| Focal length | - | 111 mm |
| Sensor | - | Sony IMX854 |
| Sensor size | - | 1/2.52" (≈ 0.4 inch) |
| Pixel size | - | 0.7 micron |
| Stabilization | - | Optical |
| Image resolution | - | 50 MP |
| Aperture | - | f/1.9 |
| Focal length | - | 13 mm |
| Sensor | - | Samsung ISOCELL S5KJN3 |
| Sensor size | - | 1/2.5" (≈ 0.4 inch) |
| Pixel size | - | 0.7 micron |
| Stabilization | - | Digital |
DxOMark main camera tests
Photo quality
Video quality
Generic main camera score
| Bokeh | - | 165 |
| Preview | - | 81 |
| Zoom | - | 137 |
| Samples | - | Photo samples of Samsung Galaxy S25 Ultra from DxOMark |
Selfie camera
| Megapixels | 5 megapixels | 12 megapixels |
| Image resolution | 2592 x 1944 | 4000 x 3000 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | - | 26 mm |
| Sensor | CMOS | Samsung S5K3LU |
| Sensor size | - | 1/3.2" (≈ 0.31 inch) |
| Pixel size | - | 1.12 micron |
| Autofocus | No | Phase autofocus (Dual Pixel) |
| Stabilization | Digital | Digital |
| Video resolution | 1080p (Full HD) at 30 FPS | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 4 (802.11 a/b/g/n) | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) |
| Wi-Fi features | - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 5.4 |
| Bluetooth features | LE | LE |
| USB type | Micro USB | USB Type-C |
| USB version | 2 | 3.2 |
| USB features | - Charging - USB-Storage mode |
- Charging - USB-Storage mode - OTG |
| DisplayPort | - | Yes, DP 1.2 |
| GPS | GPS, GLONASS, Galileo | GPS, GLONASS, Beidou, Galileo, QZSS |
| NFC* | No | Yes |
| Infrared port | No | No |
| Number of SIM* | 2 | 1 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | No | Yes |
| Hybrid slot | No | No |
| LTE Cat* | 4 | - |
| 5G support | No | Yes |
Sound
| Speakers | Mono | Stereo |
| Headphone audio jack | Yes | No |
| FM radio | Yes | No |
| Dolby Atmos | No | Yes |
Speakers test
Max loudness
Other
| Category | Budget | Flagship |
| Announced | March 2023 | January 2025 |
| Release date | March 2023 | February 2025 |
| Launch price (MSRP) | $115 | $1299 |
| Successor | - Xiaomi Redmi A4 5G | - Samsung Galaxy S26 Ultra |
| SAR (head) | - | 1.25 W/kg |
| SAR (body) | - | 1.42 W/kg |
| Sensors | - Accelerometer | - Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 10 W | Not included |
Further details
Notes on Galaxy S25 Ultra:
- Supports up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. version has 1.
- Uses Grade 5 titanium and Corning Gorilla Armor 2 glass on both sides.
*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 S25 Ultra is definitely a better buy.
Cast your vote
Total votes: 10
