| Secret codes Micromax Bolt D321 | 
| Hard reset Micromax Bolt D321 | 
| Root Micromax Bolt D321 | 
| Unlock Micromax Bolt D321 | 
| Firmware Micromax Bolt D321 | 
| Developer Mode Micromax Bolt D321 | 
| Bypass Lock Screen Micromax Bolt D321 | 
| Remove a Google account Micromax Bolt D321 | 
| Micromax Bolt D321 Factory Reset | 
| Bypass FRP Micromax Bolt D321 | 
| Screenshot Micromax Bolt D321 | 
 
| OS: Android 4.4.2 (KitKat) CPU: Dual-core 1.3 GHz Cortex-A7 Display: 5" inc Camera: 5 MP, 
 Single | 
| Hardware and OS Micromax Bolt D321 | |
| Operating system: | Android 4.4.2 (KitKat) | 
| Processor: | Dual-core 1.3 GHz Cortex-A7 | 
| Chipset: | Mediatek MT6572 (28 nm) | 
| GPU: | Mali-400 | 
| Internal memory: | 4 GB, 512 MB RAM | 
| External memory: | microSD, up to 32 GB | 
| Display Micromax Bolt D321 | |
| Size: | 5" inc | 
| Resolution: | 480 x 854 px | 
| Touchscreen: | capacitive touchscreen | 
| Display area: | 68.9 cm2 | 
| Display aspect ratio: | 16:9 (height:width) | 
| Pixel Density: | 196 PPI | 
| Colors: | 16M | 
| Connectivity Micromax Bolt D321 | |
| 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 | 
| 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 Micromax Bolt D321 | |
| Main camera: | 5 MP, Single | 
| Specs: | 5 MP | 
| Features: | LED flash | 
| Video: | Yes | 
| Selfie camera: | 2 MP, Single | 
| Specs: | 2 MP | 
| Multimedia Micromax Bolt D321 | |
| 3.5 mm Jack: | Yes | 
| Radio: | FM radio | 
| Design Micromax Bolt D321 | |
| Colors: | Black, White | 
| Battery Micromax Bolt D321 | |
| Battery capacity: | 1800 mAh, Removable Li-Ion | 
| Battery life: | Stand by time- Up to 300 h (3G) Talking time- Up to 7 h (3G) | 
| Other Micromax Bolt D321 | |
| SAR: | SAR - 0.51 W/kg (head), 0.84 W/kg (body) | 
| Release date: | 2015, February | 
| Sensors: | Accelerometer, proximity | 
|  | Vimaci-Kcx | March 20, 2024 | 
| Affordable, long battery life, durable, easy to use, good for basic communication, compact size, supports dual SIM cards. | ||
| Reply | ||
|  | Pilasa|| | May 02, 2024 | 
| Limited storage and RAM, outdated operating system, low-resolution display. | ||
| Reply | ||
|  | Visuwjk | May 06, 2024 | 
| Decent phone, outdated operating system. | ||
| Reply | ||