itel S25 Ultra vs itel RS4
Here we compared two budget smartphones: the 6.78-inch itel S25 Ultra (with Unisoc T620) that was released on November 9, 2024, against the itel RS4, which is powered by MediaTek Helio G99 Ultimate and came out 7 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Key differences
Reasons to consider the itel S25 Ultra
- Water-resistant body (IP64 classification)
- 46% higher pixel density (393 vs 269 PPI)
- More recent OS version: Android 14 versus 13
- AMOLED display (versus competitor's IPS LCD)
- The phone is 7 months newer
- Weighs 35 grams less
- Has a built-in infrared port
Reasons to consider the itel RS4
- Has 50% more RAM: 12GB versus 8GB
- Newer Bluetooth version (v5.1)
- Supports higher wattage charging (45W versus 18W)
- 27% better performance in AnTuTu Benchmark (422K versus 332K)
- More energy-efficient CPU – Helio G99 Ultimate
- Stereo speakers
- 47% faster in single-core GeekBench 6 test: 729 and 497 points
- Includes a 3.5 mm headphone audio jack port
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.
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | AMOLED | IPS LCD |
| Size | 6.78 inches | 6.56 inches |
| Resolution | 1080 x 2436 pixels | 720 x 1612 pixels |
| Aspect ratio | 20.5:9 | 20:9 |
| PPI | 393 ppi | 269 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes | Yes (60-120 Hz) |
| Max rated brightness | 1400 nits | 1300 nits |
| HDR support | No | No |
| Touch sampling rate | - | 240 Hz |
| Screen protection | Corning Gorilla Glass 7i | Tempered glass |
| Screen-to-body ratio | 89.1% | 84.2% |
| Display features | - DCI-P3 - Always-On Display | - |
Design and build
| Height | 164.2 mm (6.46 inches) | 163.5 mm (6.44 inches) |
| Width | 74.6 mm (2.94 inches) | 75.5 mm (2.97 inches) |
| Thickness | 6.9 mm (0.27 inches) | 8.15 mm (0.32 inches) |
| Weight | 163 g (5.75 oz) | 198 g (6.98 oz) |
| Waterproof | IP64 | No |
| Rear material | Plastic | Plastic |
| Frame material | Plastic | Plastic |
| Colors | Black, Gray, Purple | White, Black |
| Fingerprint scanner | Yes, in-display | Yes, in-button |
Screen-to-body ratio
Performance
| Chipset | Unisoc T620 | MediaTek Helio G99 Ultimate |
| Max clock | 2200 MHz | 2200 MHz |
| CPU cores | 8 (2 + 6) | 8 (2 + 6) |
| Architecture | - 6 cores at 1.8 GHz: Cortex-A55 - 2 cores at 2.2 GHz: Cortex-A75 | - 6 cores at 2 GHz: Cortex-A55 - 2 cores at 2.2 GHz: Cortex-A76 |
| Manufacturing | TSMC | TSMC |
| Lithography process | 12 nanometers | 6 nanometers |
| Neural processor (NPU) | No | Yes |
| Graphics | Mali-G57 MP1 | Mali-G57 MP2 |
| GPU shading units | 32 | 64 |
| GPU clock | 850 MHz | 1000 MHz |
| FLOPS | ~54.4 GFLOPS | ~128 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| Geekbench Compute (GPU) | 599 | - |
| Single-core score | 497 | 729 |
| Multi-core score | 1541 | 1896 |
AnTuTu Benchmark 10
| CPU | 101047 | 134949 |
| GPU | 30281 | 65531 |
| Memory | 116778 | 112452 |
| UX | 84809 | 109957 |
| Total score | 332915 | 422889 |
| Samples | Less than 3 | Less than 3 |
Memory
| RAM size | 8 GB | 8, 12 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 2133 MHz | 2133 MHz |
| Channels | 2 | 2 |
| Storage size | 128, 256, 512 GB | 128, 256 GB |
| Storage type | UFS 2.2 | UFS 2.2 |
| Memory card | - | MicroSD |
Software
| Operating system | Android 14 | Android 13 |
| ROM | itel OS 14.5 | itel OS 13 |
Battery
| Capacity | 5000 mAh | 5000 mAh |
| Max charge power | 18 W | 45 W |
| Battery type | Li-Po | Li-Po |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | - |
| Fast charging | Yes | Yes (80% in 30 min) |
| Full charging time | - | 1:13 hr |
Main camera
| Matrix | 50 megapixels | 50 megapixels |
| Zoom | Digital | Digital |
| Flash | LED | LED |
| Stabilization | Digital | Digital |
| 8K video recording | No | No |
| 4K video recording | No | No |
| 1080p video recording | Up to 30FPS | Up to 30FPS |
| Lenses | 1) Standard: 50 MP 2) Macro 3) Depth | 1) Standard: 50 MP |
| Camera features | - Bokeh mode - Pro mode | - Bokeh mode |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/1.6 | f/1.6 |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
| Stabilization | No | - |
Selfie camera
| Megapixels | 32 megapixels | 8 megapixels |
| Aperture | f/2.2 | - |
| Focal length | 22 mm | - |
| Autofocus | No | No |
| Stabilization | Digital | No |
| Video resolution | 1080p (Full HD) at 30 FPS | 1080p (Full HD) at 30 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 5 (802.11 a/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 | 5.1 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 2 |
| USB features | - Charging - USB-Storage mode - OTG | - Charging - USB-Storage mode |
| DisplayPort | No | No |
| GPS | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Galileo |
| NFC* | Yes | Yes |
| Infrared port | Yes | 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 |
| 5G support | No | No |
Sound
| Speakers | Mono | Stereo |
| Headphone audio jack | No | Yes |
| FM radio | No | - |
| Dolby Atmos | No | No |
Other
| Category | Budget | Budget |
| Announced | November 2024 | April 2024 |
| Release date | November 2024 | April 2024 |
| Launch price | $140 | $110 |
| Configurations | - 8 / 128 GB - 8 / 256 GB - 8 / 512 GB | - 8 / 128 GB - 8 / 256 GB - 12 / 256 GB |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint | - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 18 W | Yes, 45 W |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

