| Hardware and OS | BLU G51s | |
| Operating System | Android v11 | |
| Processor | 1.6 GHz, Octa Core Processor | |
| Chipset | Unisonic 9863 | |
| Cores | ARM-Cortex A55 | |
| RAM | 2 GB | |
| Internal Memory | 32 GB | |
| Memory Card Slot | Yes, upto 64 GB | |
| Dual Sim | Yes | |
| Sim Size | Nano Nano SIM | |
| Sim Type | Dual Sim, GSM GSM | |
| Display | BLU G51s | other phones |
| Screen Size | 6.4 inches, 720 x 1600 pixels | |
| Display Type | Color IPS LCD screen (16M) | |
| Pixel Density | ~268 PPI | |
| Touch Screen | Yes, with Multitouch | |
| Features | 2.5D Curved Glass | |
| Connectivity | BLU G51s | other phones |
| 3G Network | Yes | |
| 4G Network | Yes | |
| Bluetooth | Yes, v4.2 | |
| EDGE | Yes | |
| GPRS | Yes | |
| GPS | Yes | |
| USB | Yes, USB-C | |
| USB Features | USB on-the-go, USB Charging | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | |
| Camera | BLU G51s | other phones |
| Main camera | 13 MP AI with autofocus | |
| Video Recording | 1080p | |
| Flash | Yes, LED | |
| Selfie camera | Punch Hole 8 MP | |
| Multimedia | BLU G51s | other phones |
| Headphone jack | Yes | |
| Email | Yes | |
| FM Radio | No | |
| Music | Yes | |
| Video | Yes | |
| Browser | Yes | |
| Java | No | |
| Design | BLU G51s | other phones |
| Dimensions | 162.4 x 77.5 x 9 mm | |
| Weight | 185 g | |
| Bezel less | Yes | |
| Battery | BLU G51s | other phones |
| Battery capacity | 4000 mAh | |
| Type | Non-Removable Battery | |
