Samsung Galaxy S25 Ultra vs Google Pixel 9a
87
out of 100
VS
67
out of 100
Here we compared two smartphones: the 6.9-inch Samsung Galaxy S25 Ultra (with Qualcomm Snapdragon 8 Elite) that was released on January 22, 2025, against the Google Pixel 9a, which is powered by Google Tensor G4 and came out 2 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 Samsung Galaxy S25 Ultra
- The rear camera has a 5x optical zoom
- 2.4x better performance in AnTuTu Benchmark (3128K versus 1321K)
- Has a 0.6 inch larger screen size
- Shows 42% longer battery life (28:43 vs 20:15 hours)
- Better camera quality (According to DxOMark rating)
- Has 50% more RAM: 12GB versus 8GB
- Newer Bluetooth version (v5.4)
- Supports higher wattage charging (45W versus 23W)
- Compatible with Wi-Fi 7 wireless networks
- Thinner bezels – 7.9% more screen real estate
- 18% higher pixel density (498 vs 422 PPI)
Reasons to consider the Google Pixel 9a
- Delivers 36% higher peak brightness (1927 against 1416 nits)
- Weighs 32 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 DeviceFacts Score
Value for money (Beta)
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | Dynamic AMOLED | POLED |
| Size | 6.9 inches | 6.3 inches |
| Resolution | 1440 x 3120 pixels | 1080 x 2424 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 498 ppi | 422 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (1-120 Hz) | Yes (60-120 Hz) |
| Max rated brightness | - | 2700 nits |
| Max rated brightness in HDR | 2600 nits | 1800 nits |
| HDR support | Yes, HDR10+ | Yes, HDR10+ |
| Touch sampling rate | 240 Hz | - |
| Screen protection | Corning Gorilla Armor 2 | Corning Gorilla Glass 3 |
| Screen-to-body ratio | 92.4% | 84.5% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming |
- DCI-P3 - Always-On Display |
| RGB color space | 97.7% | 98.2% |
| PWM | 240 Hz | 240 Hz |
| Response time | 1 ms | 1 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Screen space comparison
Galaxy S25 Ultra
6.9″ (19.5:9 ratio) = 18.1 in2
Pixel 9a
6.3″ (20:9 ratio) = 14.9 in2
~21% more screen space
Peak brightness test (auto)
Design and build
| Height | 162.8 mm (6.41 inches) | 154.7 mm (6.09 inches) |
| Width | 77.6 mm (3.06 inches) | 73.3 mm (2.89 inches) |
| Thickness | 8.2 mm (0.32 inches) | 8.9 mm (0.35 inches) |
| Weight | 218 g (7.69 oz) | 186 g (6.56 oz) |
| Waterproof | IP68 | IP68 |
| Advanced cooling | Vapor chamber | Vapor chamber |
| Rear material | Glass | Plastic |
| Frame material | Metal | Metal |
| Colors | Black, Silver, Gray, Blue | White, Black, Red, Purple |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
| Repairability | Good (3.23/5) | Good (3.53/5) |
| Drop resistance | Excellent (A) · 270 drops | Excellent (A) · 270 drops |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Elite | Google Tensor G4 |
| Max clock | 4470 MHz | 3100 MHz |
| CPU cores | 8 (2 + 6) | 8 (1 + 3 + 4) |
| Architecture | - 6 cores at 3.53 GHz: Oryon (Phoenix M) - 2 cores at 4.32 GHz: Oryon (Phoenix L) |
- 4 cores at 1.92 GHz: Cortex-A520 - 3 cores at 2.6 GHz: Cortex-A720 - 1 core at 3.1 GHz: Cortex-X4 |
| L3 cache | 8 MB | - |
| Manufacturing | TSMC | Samsung |
| Lithography process | 3 nanometers | 4 nanometers |
| Neural processor (NPU) | Hexagon | Yes |
| Graphics | Adreno 830 | Mali-G715 MP7 |
| GPU shading units | 1536 | 896 |
| GPU clock | 1100 MHz | 940 MHz |
| FLOPS | ~3379.2 GFLOPS | ~1684.4 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 26581 | 7784 |
| Single-core score | 3202 | 1677 |
| Multi-core score | 10347 | 4067 |
AnTuTu Benchmark 11
| CPU | 987646 | 445318 |
| GPU | 1190760 | 410687 |
| Memory | 362214 | 175537 |
| UX | 587932 | 289527 |
| Total score | 3128552 | 1321069 |
| Samples | [66 tests] | [7 tests] |
3DMark Steel Nomad Light
| Stability | 61% | 81% |
| Graphics test | 17 FPS | 8 FPS |
| Graphics score | 2272 | 1060 |
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 | 10570 |
| Video editing | 8625 | 7547 |
| Photo editing | 34425 | 21264 |
| Data manipulation | 17556 | 12988 |
| Writing score | 26844 | 16308 |
AnTuTu 11 Ranking List (#87th place)
Recent User Tests
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 |
Google Pixel 9a
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-08-21 (Leif) | AnTuTu 11 | 1590049 |
| 📘 2026-05-13 (kiriguap) | AnTuTu 11 | 1182042 |
| 📘 2026-03-09 (d1ldo) | AnTuTu 11 | 943849 |
| 📘 2026-01-03 (Joy) | AnTuTu 11 | 1487240 |
| 📘 2025-11-11 (VLAD) | AnTuTu 11 | 1507185 |
Memory
| RAM size | 12 GB | 8 GB |
| Memory type | LPDDR5X | LPDDR5X |
| Memory clock | 5300 MHz | 4200 MHz |
| Channels | 4 | 4 |
| Storage size | 256 GB | 128 GB |
| Storage type | UFS 4.0 | UFS 3.1 |
| Memory card | No | No |
Software
| Operating system | Android 15 (Can be upgraded to Android 17) | Android 15 (Can be upgraded to Android 17) |
| ROM | One UI 9.0 | Stock Android |
| OS size | 30.4 GB | 14 GB |
| OS updates | 7 years | 7 years |
| Security updates | 7 years | 7 years |
Battery
| Capacity | 5000 mAh | 5100 mAh |
| Max charge power | 45 W | 23 W |
| Battery type | Li-Ion | Li-Po |
| Replaceable | No | No |
| Wireless charging | Yes (25 W) | Yes (7.5 W) |
| Reverse charging | Yes, (wireless) | No |
| Bypass charging | Yes | No |
| Fast charging | Yes (72% in 30 min) | Yes (47% in 30 min) |
| Full charging time | 0:59 hr | 1:41 hr |
| Battery cycles | 2000 cycles | 1000 cycles |
| Web browsing | 11:10 hr | 08:20 hr |
| Watching video | 19:32 hr | 12:40 hr |
| Gaming | 06:22 hr | 06:06 hr |
| Standby | 132 hr | 91 hr |
General battery life
Smartphones With Long Battery Life (#69th place)
Main camera
| Matrix | 200 megapixels | 48 megapixels |
| Image resolution | 16320 x 12240 | 8000 x 6000 |
| Zoom | Optical, 5x | Digital |
| Flash | LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 30FPS | No |
| 4K video recording | Up to 120FPS | Up to 60FPS |
| 1080p video recording | Up to 240FPS | Up to 60FPS |
| Slow motion | 240 FPS (1080p) | 240 FPS (1080p) |
| Angle of widest lens | 120° | 120° |
| Lenses | 1) Standard: 200 MP 2) Telephoto: 50 MP 3) Telephoto: 10 MP 4) Ultrawide: 50 MP |
1) Standard: 48 MP 2) Ultrawide: 13 MP |
| Camera features | - Bokeh mode - Pro mode - RAW support |
- Bokeh mode - Pro mode - RAW support |
| Image resolution | 200 MP | 48 MP |
| Aperture | f/1.7 | f/1.7 |
| Focal length | 23 mm | 25 mm |
| Sensor | Samsung ISOCELL S5KHP2 | Samsung GN8 |
| Sensor size | 1/1.3" (≈ 0.77 inch) | 1/2" (≈ 0.5 inch) |
| Pixel size | 0.6 micron | 0.8 micron |
| Autofocus | Laser autofocus | Phase autofocus (Dual Pixel) |
| Stabilization | Optical | 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 | 13 MP |
| Aperture | f/1.9 | f/2.2 |
| Focal length | 13 mm | 16 mm |
| Sensor | Samsung ISOCELL S5KJN3 | Sony IMX712 |
| Sensor size | 1/2.5" (≈ 0.4 inch) | 1/3.06" (≈ 0.33 inch) |
| Pixel size | 0.7 micron | 1.12 micron |
| Stabilization | Digital | Digital |
DxOMark main camera tests
Photo quality
Video quality
Generic main camera score
| Bokeh | 165 | 145 |
| Preview | 81 | - |
| Zoom | 137 | 99 |
| Samples | Photo samples of Samsung Galaxy S25 Ultra from DxOMark | Photo samples of Google Pixel 9a from DxOMark |
Selfie camera
| Megapixels | 12 megapixels | 13 megapixels |
| Image resolution | 4000 x 3000 | 4032 x 3024 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | 20 mm |
| Sensor | Samsung S5K3LU | CMOS |
| Sensor size | 1/3.2" (≈ 0.31 inch) | 1/3.1" (≈ 0.32 inch) |
| Pixel size | 1.12 micron | 1.12 micron |
| Autofocus | Phase autofocus (Dual Pixel) | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 30 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 6E (802.11 a/b/g/n/ac/ax) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - 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 | 5.4 | 5.3 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.2 |
| USB features | - Charging - USB-Storage mode - OTG |
- Charging - USB-Storage mode - OTG |
| DisplayPort | Yes, DP 1.2 | Yes |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS | GPS, GLONASS, Galileo |
| NFC* | Yes | Yes |
| Infrared port | No | No |
| Number of SIM* | 1 | 1 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | Yes | Yes |
| Hybrid slot | No | No |
| 5G support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | No |
Speakers test
Max loudness
Other
| Category | Flagship | Mid-range |
| Announced | January 2025 | March 2025 |
| Release date | February 2025 | April 2025 |
| Launch price (MSRP) | $1299 | $499 |
| Successor | - Samsung Galaxy S26 Ultra | - Google Pixel 10a |
| SAR (head) | 1.25 W/kg | 0.99 W/kg |
| SAR (body) | 1.42 W/kg | 1.39 W/kg |
| Sensors | - Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Not included | 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: 4