Side-by-side technical data
itel S25 Ultra vs Oppo A6i
Comparison between itel S25 Ultra and Oppo A6i: camera, battery, fast charging, display, performance and colors, side by side. More phones from itel and Oppo.
The verdict
Your pick: Oppo A6i, ahead on Performance & hardware, Connectivity and Battery & charging. Unless Design & display decides it for you.
| Category | S25 Ultra | A6i |
|---|---|---|
| Design & display | 7.7 | 6.0 |
| Performance & hardware | 4.4 | 4.8 |
| Camera | 4.1 | 3.8 |
| Connectivity | 5.3 | 5.6 |
| Battery & charging | 5.4 | 6.5 |
Which one is for you?
itel S25 Ultra, if you care about…
- RAM Capacity
- 8 GB
- against 6 GB
- Display Technology
- AMOLED
- against IPS LCD
- Maximum Storage Capacity
- 512 GB
- against 128 GB
- Peak Display Brightness
- 1,400 nits
- against 1,000 nits
Oppo A6i, if you care about…
- Battery Capacity
- 6,000 mAh
- against 5,000 mAh
- AnTuTu Score
- 415,000
- against 328,000
- Fast Charge Power
- 45 W
- against 18 W
- OS Version
- 15
- against 14
Specification comparison
Performance
| Specification | S25 Ultra | A6i |
|---|---|---|
| Processor Model | Unisoc T620 | MediaTek Dimensity 6300 |
| Processor Process Size | 12 nm | 6 nm Best value |
| Graphics GPU | Mali-G57 MP1 | Mali-G57 MC2 |
| Storage Type | UFS 2.2 | UFS 2.2 |
| Maximum CPU Clock | 2.2 GHz | 2.4 GHz Best value |
| Maximum Storage Capacity | 512 GB Best value | 128 GB |
| AnTuTu Score | 328,000 | 415,000 Best value |
| Geekbench 6 Single-Core | 497 | — |
| Geekbench 6 Multi-Core | 1,541 | — |
| CPU Description | Octa-core CPU with 2 Cortex-A75 cores at 2.2 GHz and 6 Cortex-A55 cores at up to 1.8 GHz. | 2×2.4 GHz ARM Cortex-A76 + 6×2.0 GHz ARM Cortex-A55 |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 8 GB Best value | 6 GB |
| RAM Type | LPDDR4X | LPDDR4X |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v10 | v10 |
Design
| Specification | S25 Ultra | A6i |
|---|---|---|
| Body Colors | Black, Titanium, Blue, Grey, Cyan | Black, White |
| Body Thickness | 6.9 mm Best value | 8 mm |
| Body Width | 76.4 mm | 76.2 mm |
| Body Height | 164.2 mm | 165.7 mm |
| Weight | 163 g Best value | 194 g |
| Usable Surface | — | 87 % |
| Body Materials | Titanium Best value | Plastic |
| Resistance Features | IP64 | IP64 |
Battery
| Specification | S25 Ultra | A6i |
|---|---|---|
| Battery Capacity | 5,000 mAh | 6,000 mAh Best value |
| Battery Type | Li-Polymer | Li-Ion |
| Fast Charge Power | 18 W | 45 W Best value |
| Battery Features | Fast Charging, Bypass Charging, Non-Removable, Battery Level Indicator, Rechargeable | Fast Charging, Non-Removable |
Display
| Specification | S25 Ultra | A6i |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | AMOLED Best value | IPS LCD |
| Peak Display Brightness | 1,400 nits Best value | 1,000 nits |
| Display Diagonal | 6.78″ Best value | 6.67″ |
| Display Horizontal Resolution | 1,080 px Best value | 720 px |
| Display Vertical Resolution | 2,436 px Best value | 1,604 px |
| Display Pixel Density | 393 ppi Best value | 264 ppi |
| Display Refresh Rate | 120 Hz | 120 Hz |
| Touch Sampling Rate | 1,500 Hz | — |
| Display Contrast Ratio | 5,000,000 :1 | — |
| Display Features | Gorilla Glass 7i, Hole-Punch Notch, 2160Hz PWM, DCI-P3, 10-Bit Panel, Dual-Edge Display, Capacitive Touch, Multi-Touch, Frameless, Always-On Display | Hole-Punch Notch, 120Hz, DCI-P3, Curved Glass, Capacitive Touch, Multi-Touch, Frameless |
Sensors
| Specification | S25 Ultra | A6i |
|---|---|---|
| Fingerprint Sensor Placement | Under Display | Side |
Sensor
| Specification | S25 Ultra | A6i |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Compass, Gyroscope, Light Sensor, Proximity Sensor | Fingerprint Sensor, Accelerometer, Compass, Gyroscope, Light Sensor, Proximity Sensor |
Software
| Specification | S25 Ultra | A6i |
|---|---|---|
| Operating System | Android 14 | Android 15 |
| OS Family | Android | Android |
| OS Version | 14 | 15 Best value |
| OS Update Support | 7 years | — |
| Google Services | Yes Best value | No |
Connectivity
| Specification | S25 Ultra | A6i |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby, Dual SIM | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B38, 4G LTE B40, 4G LTE B41 | 2G CDMA BC0, 2G CDMA B3, 2G CDMA B5, 2G CDMA B8, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B28B, 4G LTE B34, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 5G NR n1, 5G NR n5, 5G NR n8, 5G NR n28a, 5G NR n41, 5G NR n77, 5G NR n78 |
| Cellular Technologies | GSM, HSPA, UMTS, LTE | UMTS, CDMA, LTE, 5G Best value |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g, Wi-Fi 802.11 b/g/n, Wi-Fi 5 (802.11ac) | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE | A2DP, EDR, LE, aptX, SBC, AAC |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, QZSS, Galileo Best value |
| Connectivity Features | Infrared, NFC, USB Type-C, USB 2.0, USB Charging, USB Mass Storage, USB Host 2.0, Computer Sync, OTA Sync, Tethering | 3.5 mm Audio Jack, Computer Sync, OTA Sync, Tethering, VoLTE, USB Charging, USB Mass Storage, USB Host 2.0, USB OTG, USB Type-C |
| USB Version | USB 2.0 | — |
| Max. download speed | 300 Mbps | — |
| Max. upload speed | 150 Mbps | — |
Audio
| Specification | S25 Ultra | A6i |
|---|---|---|
| Audio Features | DTS, DTS:X, Noise-Cancellation Microphone, Stereo Speakers | Stereo Speakers, A2DP, EDR, LE, aptX, SBC, AAC |
Technical
| Specification | S25 Ultra | A6i |
|---|---|---|
| Model numbers | S686LN | — |
