| Secret codes Otium Z4 | 
| Root Otium Z4 | 
| Unlock Otium Z4 | 
| Firmware Otium Z4 | 
| Developer Mode Otium Z4 | 
| Bypass Lock Screen Otium Z4 | 
| Remove a Google account Otium Z4 | 
| Otium Z4 Factory Reset | 
| Screenshot Otium Z4 | 
| 
 OS: Android 4.4 KitKat CPU: Quad-Core (4x Cortex A7 1.3 GHz) RAM: 1GB 8GB, 1GB · 8GB Display: 5" inc Camera: 8 MP, ƒ/ 2.2, (wide), 1.40 µm Battery: 2700 mAh, Li-Ion, Removable  | 
| Hardware and OS Otium Z4 | |
| Operating system: | Android 4.4 KitKat | 
| Processor: | Quad-Core (4x Cortex A7 1.3 GHz) | 
| Chipset: | MediaTek MT6582 (28 nm) | 
| Internal memory: | 1GB 8GB, 1GB · 8GB | 
| GPU: | ARM Mali-400 MP2 | 
| Display Otium Z4 | |
| Type: | LCD IPS | 
| Size: | 5" inc | 
| Resolution: | 720 x 1280 px | 
| Display colors: | 16M | 
| Screen area: | cm2 | 
| Screen format: | 16:9 (height:width) | 
| Screen to body ratio: | 66% | 
| PPI /points per inch/: | 294 PPI | 
| Screen protection: | Scratch resistant | 
| Touchscreen: | capacitive touchscreen | 
| Connectivity Otium Z4 | |
| Network: | 2G / 3G / 4G / | 
| Network: | -2G - B2 (1900), B3 (1800), B5 (850), B8 (900) -3G - B1 (2100), B2 (1900), B5 (850), B8 (900) -4G - B1 (2100), B3 (1800), B7 (2600), B20 (800)  | 
| NFC: | No | 
| Edge: | Yes | 
| Bluetooth: | Bluetooth 4.0, A2DP | 
| SIM card: | Dual SIM, dual stand-by (Micro SIM Micro SIM) | 
| GPRS: | Yes | 
| GPS: | GPS, A-GPS | 
| Wi-Fi: | 802.11b, 802.11g, 802.11n,Wi-Fi Hotspot ,Wi-Fi Direct | 
| USB: | Yes, USB On-The-Go (OTG) | 
| Camera Otium Z4 | |
| Rear camera, main: | 8 MP, Single | 
| Camera specs: | 8 MP, ƒ/ 2.2, (wide), 1.40 µm | 
| Functions: | LED flash | 
| Video: | 1080p video | 
| Front camera, selfie: | 2 MP, Single | 
| Specifications: | 2 MP, ƒ/ | 
| Multimedia Otium Z4 | |
| Headphone jack: | Yes | 
| Radio: | Yes | 
| Design Otium Z4 | |
| Dimensions (HxWxD): | 144.3 x72.1 x 8.9 mm | 5.68 x 2.84 x 0.35 in | 
| Weight: | 145 g | 5.11 oz | 
| Colors: | Black, White | 
| Body build: | Plastic | 
| Battery Otium Z4 | |
| Battery: | 2700 mAh, Li-Ion, Removable | 
| Other features Otium Z4 | |
| Sensors: | Fingerprint (rear-mounted), Proximity, Accelerometer, compass , Infrared port | 
| Vicjcy | March 29, 2024 | |
| - Affordable price point
 - Long battery life - Removable battery - Expandable storage with microSD card slot - Dual SIM capability for using two phone numbers  | ||
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| Pcx-Lolcmy | May 03, 2024 | |
| Limited functionality, outdated features, lack of app compatibility, slow performance. | ||
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| KahZlwc | May 15, 2024 | |
| Good phone with decent features. | ||
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