| Local Name | Zenfone 8 |
| Additional Information | Also known as Asus Zenfone 8z |
| Technology | GSM / HSPA / LTE / 5G |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 - International | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 34, 38, 39, 40, 41, 42, 66, 71 - USA |
| 3G Bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat20 2000/150 Mbps, 5G |
| Announced | 2021, May 12 |
| Status | Available. Released 2021, May 13 |
| Dimensions | 148 x 68.5 x 8.9 mm (5.83 x 2.70 x 0.35 in) |
| Weight | 169 g (5.96 oz) |
| Build | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass 3), aluminum frame |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Body | IP68 dust/water resistant (up to 1.5m for 30 min) |
| Display Type | Li-Po 4000 mAh, non-removable |
| Screen Size | 5.9 inches, 84.0 cm2 (~82.9% screen-to-body ratio) |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~446 ppi density) |
| Protection | Corning Gorilla Glass Victus | Always-on display |
| OS | Android 11, upgradable to Android 13 |
| Chipset | Qualcomm SM8350 Snapdragon 888 5G (5 nm) |
| CPU | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) |
| GPU | Adreno 660 |
| Card Slot | No |
| Internal Memory | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 256GB 16GB RAM | UFS 3.1 |
| Camera Features | LED flash, HDR, panorama |
| Video | 4K@30fps, 1080p@30/60fps |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm Jack | Yes |
| Sound | 32-bit/384kHz audio |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct |
| Bluetooth | 5.2, A2DP, LE, aptX HD, aptX Adaptive |
| NFC | Yes |
| Radio | FM radio (market/region dependent) |
| USB | USB Type-C 2.0, OTG |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Colors | Obsidian Black, Horizon Silver |