| Secret codes Coolpad Cool 21 |
| Root Coolpad Cool 21 |
| Unlock Coolpad Cool 21 |
| Firmware Coolpad Cool 21 |
| Developer Mode Coolpad Cool 21 |
| Bypass Lock Screen Coolpad Cool 21 |
| Remove a Google account Coolpad Cool 21 |
| Coolpad Cool 21 Factory Reset |
| Screenshot Coolpad Cool 21 |
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OS: Android v11 CPU: MediaTek Helio G80 RAM: 6 GB Display: 6.52 inches Camera: 48 MP 8 MP 2 MP Battery: 4500 mAh |
| Hardware and OS Coolpad Cool 21 | |
| Operating system: | Android v11 |
| Processor: | MediaTek Helio G80 |
| RAM: | 6 GB |
| Internal Storage: | 128 GB |
| Display Coolpad Cool 21 | |
| Type: | IPS LCD |
| Size: | 6.52 inches |
| Resolution: | 720 x 1600 Pixels |
| Pixel Density: | 269 ppi |
| Touchscreen: | Yes, Capacitive Touchscreen, Multi-touch |
| Connectivity Coolpad Cool 21 | |
| Network support: | 4G , 3G, 2G |
| WI-FI: | Yes, Wi-Fi 802.11, b/g/n |
| Gps: | Yes, with A-GPS |
| Bluetooth: | Yes, v5.0 |
| Dual SIM: | Dual SIM, GSM GSM |
| SIM size: | SIM1: Nano, SIM2: Nano |
| USB connectivity: | Mass storage device, USB charging |
| Camera Coolpad Cool 21 | |
| Main camera: | 48 MP 8 MP 2 MP |
| Front camera: | 5 MP |
| Front camera resolution: | 5 MP |
| Camera features: | Digital Zoom, Auto Flash, Face detection, Touch to focus |
| Flash: | Yes, LED Flash |
| Autofocus: | Yes |
| Video recording: | Yes |
| Multimedia Coolpad Cool 21 | |
| Audio jack: | 3.5 MM |
| Loudspeaker: | Yes |
| Design Coolpad Cool 21 | |
| Height: | 164.3 mm |
| Width: | 75.66 mm |
| Thickness: | 8.65 mm |
| Weight: | 199.6 grams |
| Colours: | Earl Black, Secret Sea Blue, and Cocoa White |
| Battery Coolpad Cool 21 | |
| Capacity: | 4500 mAh |
| Type: | Li-Polymer |
| Other Coolpad Cool 21 | |
| Fingerprint sensor: | Yes |
| Fingerprint sensor position: | Side |
| Other sensors: | Accelerometer, Proximity |
| DabNacy | March 13, 2024 | |
| Feature phones are affordable, have a long battery life, durable, easy to use, have physical buttons, and can be a backup. | ||
| Reply | ||
| Bcxcpo-Xam | May 11, 2024 | |
| Limited features, outdated technology, small screen, low resolution, slow performance. | ||
| Reply | ||
| Gavlky | May 12, 2024 | |
| Good phone with solid features overall. | ||
| Reply | ||