| Secret codes Ulefone S1 |
| Hard reset Ulefone S1 |
| Root Ulefone S1 |
| Unlock Ulefone S1 |
| Firmware Ulefone S1 |
| Developer Mode Ulefone S1 |
| Bypass Lock Screen Ulefone S1 |
| Remove a Google account Ulefone S1 |
| Ulefone S1 Factory Reset |
| Screenshot Ulefone S1 |
|
OS: Android 8.1 Oreo (Go edition) CPU: Quad-core 1.3 GHz Cortex-A7 Display: 5.5" inc Camera: 5 MP,
Dual |
| Hardware and OS Ulefone S1 | |
| Operating system: | Android 8.1 Oreo (Go edition) |
| Processor: | Quad-core 1.3 GHz Cortex-A7 |
| Chipset: | Mediatek MT6580 (28nm) |
| GPU: | Mali-400 |
| Internal memory: | 8GB 1GB RAM |
| External memory: | microSD, up to 64 GB (uses shared SIM slot) |
| Display Ulefone S1 | |
| Type: | IPS LCD |
| Size: | 5.5" inc |
| Resolution: | 480 x 960 px |
| Touchscreen: | capacitive touchscreen |
| Screen-to-Body Ratio: | 74.3% |
| Display area: | 78.1 cm2 |
| Display aspect ratio: | 18:9 (height:width) |
| Pixel Density: | 195 PPI |
| Colors: | 16M |
| Connectivity Ulefone S1 | |
| 2G Network: | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Wi-Fi: | Wi-Fi 802.11 b/g/n, hotspot |
| Network: | GSM / HSPA |
| SIM card: | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth: | 4.0, A2DP |
| Edge: | Yes |
| GPRS: | Yes |
| GPS: | Yes, with A-GPS |
| Speed: | HSPA 21.1/5.76 Mbps |
| USB: | microUSB 2.0 |
| Camera Ulefone S1 | |
| Main camera: | 5 MP, Dual |
| Specs: | 5 MP, f/2.2, (wide), AF -5 MP |
| Features: | LED flash, HDR |
| Video: | 720p@30fps |
| Selfie camera: | 2 MP, Single |
| Specs: | 2 MP |
| Multimedia Ulefone S1 | |
| 3.5 mm Jack: | Yes |
| Radio: | Stereo FM radio, RDS, recordin |
| Design Ulefone S1 | |
| Colors: | Gold, Black |
| Dimensions: | 148.6 x 70.7 x 9.6 mm |
| Weight: | 183 g |
| Battery Ulefone S1 | |
| Battery capacity: | 3000 mAh, Non-removable Li-Po |
| Other Ulefone S1 | |
| Release date: | 2018, August |
| Sensors: | Accelerometer, proximity |
 | Zidakls | April 11, 2024 |
| Affordable, long battery life, sleek design, dual SIM capability, expandable storage, FM radio, and basic features for communication. | ||
| Reply | ||
| Hlm-Bylypi | May 11, 2024 |
| Limited storage, low-resolution display, outdated processor, lack of modern features. | ||
| Reply | ||
| Bowiqu! | May 15, 2024 |
| Good phone for basic use. | ||
| Reply | ||
