| Hardware and OS | BLU G40 | |
| Operating System | Android 11 (Go Edition) | |
| Processor | Quad-core (1x2.0 GHz Cortex-A75 & 3x1.8 GHz Cortex-A55) | |
| Chipset | UNISOC Tiger T310 (12 nm) | |
| RAM | 3GB 32GB | |
| Memory Card Slot | Yes, up to 128GB via microSD card | |
| GPU | PowerVR GE8300 | |
| Display | BLU G40 | other phones |
| Type | IPS LCD touchscreen / 16M colors | |
| Size | 6.0 inches, (75.2% screen-to-body ratio) | |
| Resolution | 720 x 1440 pixels, 18:9 ratio | |
| Connectivity | BLU G40 | other phones |
| 2G Network | GSM 850/900/1800/1900 | |
| 3G Network | HSDPA Bands 850 / 900 / 1700 / 1900 / 2100 | |
| 4G Network | LTE band B2 / B3 / B4 / B5 / B7 / B12 / B17 / B28 / B66 | |
| Technology | GSM / HSPA / LTE | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | |
| Bluetooth | Bluetooth 4.2, A2DP | |
| GPS | Yes, with A-GPS, GLONASS | |
| NFC | No | |
| USB | Micro USB 2.0 | |
| Wi-Fi | Wi-Fi 802.11 a/b/g, Wi-Fi Direct, hotspot | |
| Camera | BLU G40 | other phones |
| Main camera | Main: 13 MP, PDAF
Depth: QVGA AI lens | |
| Camera Features | Autofocus / HDR / LED flash | |
| Camera Type | Double Lenses | |
| Video Recording | 1080p@30fps | |
| Selfie camera | 8-megapixel front camera | |
| Video Resolution | 1080p@30fps | |
| Multimedia | BLU G40 | other phones |
| Headphone jack | Yes, 3.5mm audio jack | |
| Loudspeaker | Yes | |
| Design | BLU G40 | other phones |
| Body build | Plastic | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Dimensions | 163.4 x 78.8 x 10.75 mm | |
| Weight | 205 grams | |
| Battery | BLU G40 | other phones |
| Capacity | Non-removable Li-Pol 3000mAh battery | |
| Other features | BLU G40 | other phones |
| Colors | Black, Silver, Blue, Gold and Green | |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | |
