| Hardware and OS | Infinix Smart HD 2021 | |
| Operating system | Android 10 (Go edition), XOS 6.2 | |
| Processor | Quad-core 1.8 GHz Cortex-A53 | |
| Chipset | Mediatek MT6761D Helio A20 (12 nm) | |
| Internal memory | 32GB 2GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| GPU | PowerVR GE8320 | |
| Display | Infinix Smart HD 2021 | other phones |
| Size | 6.1 inches, 91.3 cm2 | |
| Resolution | 720 x 1560 pixels, 19.5:9 ratio | |
| Type | IPS LCD, 500 nits (typ) | |
| Main Camera | Infinix Smart HD 2021 | other phones |
| Camera | 8 MP, f/2.0 | |
| Features | Dual-LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | Infinix Smart HD 2021 | other phones |
| Camera | 5 MP, f/2.0 | |
| Features | Dual-LED flash, HDR | |
| Video | 1080p@30fps | |
| Connectivity | Infinix Smart HD 2021 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | 1, 3, 5, 8, 38, 40, 41 | |
| Bluetooth | 5.0, A2DP, LE | |
| GPS | Yes, with A-GPS | |
| NFC | No | |
| Speed | HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps | |
| Technology | GSM / HSPA / LTE | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 a/b/g/n, hotspot | |
| Multimedia | Infinix Smart HD 2021 | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | FM radio | |
| Battery | Infinix Smart HD 2021 | other phones |
| Type | Li-Po 5000 mAh, non-removable | |
| Design | Infinix Smart HD 2021 | other phones |
| Body build | Glass front, plastic back, plastic frame | |
| Colors | Topaz Blue, Obsidian Black, Quartz Green | |
| Dimensions | 158.3 x 75.2 x 9.8 mm (6.23 x 2.96 x 0.39 in) | |
| Weight | 195 g (6.88 oz) | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Features | Infinix Smart HD 2021 | other phones |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | |
