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- S25 Ultra vs A3x
itel S25 Ultra vs OPPO A3x
What S25 Ultra does better (14) and where A3x wins (7) — every spec side by side.
Dimensions
Size comparison
S25 UltraA3x
| S25 Ultra | A3x | Difference | |
|---|---|---|---|
| Height | 164.2 mm | 165.7 mm | −1.5 mm |
| Width | 74.6 mm | 76 mm | −1.4 mm |
| Thickness | 6.9 mm | 7.7 mm | −0.8 mm |
| Weight | 163 g | 187 g | −24 g |
Drawn to the same scale from the official dimensions (front and side).
Why is S25 Ultra better than A3x?
- Main camera50 MP vs 8 MP6.2×
- RAM8 GB vs 4 GB2×
- Storage (max)512 GB vs 128 GB4×
- OLED panelYes · A3x: No
- NFCYes · A3x: No
- Pixel density393 ppi vs 264 ppi+49%
- Selfie camera32 MP vs 5 MP6.4×
- Peak brightness1,400 nits vs 1,000 nits+40%
- Storage (base)128 GB vs 64 GB2×
- Weight163 g vs 187 g+15%
- Resolution (width)1,080 px vs 720 px+50%
- Main camera aperturef/1.6 vs f/2+25%
Why is A3x better than S25 Ultra?
- Wired charging18 W vs 45 W2.5×
- 5GNo · S25 Ultra: Yes
- Process12 nm vs 6 nm2×
- 3.5 mm headphone jackNo · S25 Ultra: Yes
- CPU frequency2.2 GHz vs 2.4 GHz+9%
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
- Bluetooth5 vs 5.3+6%
Specifications
Side by side
| Design | ||
| Weight | 163 g | 187 g |
| Thickness | 6.9 mm | 7.7 mm |
| Height | 164.2 mm | 165.7 mm |
| Width | 74.6 mm | 76 mm |
| Frame | Plastic | — |
| Back | Plastic | — |
| Ingress protection | IP64 | IP54 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Glass protection | Corning Gorilla Glass 7i | Panda glass |
| Colours | Bromo Black, Meteor Titanium, Komodo Ocean | Sparkle Black, Starlight White, Starry Purple |
| Display | ||
| Screen size | 6.8″ | 6.7″ |
| Panel | AMOLED | IPS LCD |
| OLED panel | Yes | No |
| Resolution (width) | 1,080 px | 720 px |
| Resolution (height) | 2,436 px | 1,604 px |
| Pixel density | 393 ppi | 264 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,400 nits | 1,000 nits |
| Screen-to-body ratio | 89.1% | 85.2% |
| Performance | ||
| Chipset | Unisoc T620 | Mediatek Dimensity 6300 |
| Chip maker | Unisoc | MediaTek |
| Process | 12 nm | 6 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.2 GHz | 2.4 GHz |
| GPU | Mali-G57 | Mali-G57 MC2 |
| AnTuTu score | 452,545 | — |
| Geekbench 6 (multi-core) | 1,541 | — |
| Memory | ||
| RAM | 8 GB | 4 GB |
| Storage (max) | 512 GB | 128 GB |
| Storage (base) | 128 GB | 64 GB |
| Storage type | UFS 2.2 | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 50 MP | 8 MP |
| Main camera aperture | f/1.6 | f/2 |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 32 MP | 5 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,100 mAh |
| Battery type | Li-Po | — |
| Wired charging | 18 W | 45 W |
| Charged in 30 min | — | 50% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | 5 | 5.3 |
| NFC | Yes | No |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Infrared port | Yes | — |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | No | Yes |
| Fingerprint sensor | Under display | Side |
| Sensors | Fingerprint (under display, optical), unspecified sensors | Fingerprint (side-mounted), accelerometer, proximity, compass |
| SAR (head) | — | 1.05 W/kg |
| Software | ||
| OS at launch | Android 14 | Android 14 |
| Platform | Android | Android |
| Interface | itel OS 14.5 | ColorOS 14 |
| Major OS updates promised | 2 | — |
