📱 Model features |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Model | Zenfone 8 (128GB/8GB) | Zenfone Max Pro M2 (ZB631KL 128GB) |
| Other model names | Asus Zenfone 8 (ZS590KS, ZS590KS-2A007EU) | Asus Zenfone Max Pro M2 ZB631KL (6GB RAM), X01BDA |
| Country or region available | 
(Global, International) |
(Global, International) |
| Brand | Asus | Asus |
| Release date | 5/12/2021 | 12/1/2018 |
| Depth | 8.9 millimeters (0.35 inches) | 8.5 millimeters (0.33 inches) |
| Size (width x height) | 68.5 x 148 millimeters (2.7 x 5.83 in) | 75.5 x 157.9 millimeters (2.97 x 6.22 in) |
| Weight | 169 grams (5.92 ounces) | 175 grams (6.13 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
🤖 Operating System |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| System version | Android 11 | Android 8.1 Oreo |
| Firmware update | feature not registered | Android 9.0 Pie |
| User Interface | feature not registered | feature not registered |
⚙️ Processor |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Chipset | 64bit - Qualcomm Snapdragon 888 (SM8350) (5nm) | 64bit - Qualcomm Snapdragon 660 SDM660 (14nm) |
| CPU | Octa-Core, 3 processors:
2.84GHz Single-Core Kryo 680
2.42GHz Triple-Core Kryo 680
1.8GHz Quad-Core Kryo 680 | Octa-Core, 2 processors:
2.2GHz Quad-Core Kryo 260 Gold
1.8GHz Quad-Core Kryo 260 Silver |
| GPU graphical controller | Qualcomm Adreno 660 (840MHz) | Qualcomm Adreno 512 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| RAM memory | 8GB LPDDR5 | 6GB LPDDR4 |
| Internal storage | 128GB (107GB available)
UFS 3.1 | 128GB (110GB available)
eMCP |
| External storage | Not supported | Until 1TB microSD, microSDXC
(dedicated slot) |
📲 Display |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 5.9" inches | 6.26" inches |
| Screen-to-body ratio | ~82.9% (screen-to-body ratio) | ~82% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x2280 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 446 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Gorilla Glass 6 |
| Display features | 120Hz, 700nits[typ], 1100nits[peak]
HDR10+ | feature not registered |
📶 Mobile networks |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card
(dedicated slot) |
| SIM card | 2 slots (Dual-SIM)
nano-SIM (4FF) | 2 slots (Dual-SIM)
nano-SIM (4FF) |
| Maximum download/upload | 2000/1024 Mbps | 400/75 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G |
| Frequency, bands | Expand band detailsCollapse details |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 800/850/900/1700/1900/2100 | UMTS 850/900/2100 |
| Primary 4G network | LTE Cat20
VoLTE
America version:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 66, 71)
TD-LTE (34, 38, 39, 40, 41, 42)
Global version:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28)
TD-LTE (34, 38, 39, 40, 41, 42) | LTE Cat13/5
VoLTE
Global version;
LTE (Bands 1, 3, 5, 7, 8, 20)
TD-LTE (Bands 40)
America version:
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 28)
TD-LTE (Bands 38, 41) |
| Primary 5G network | America version:
SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 25, 38, 40, 66, 71, 77, 78)
Global version:
SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 800/850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE |
📷 Camera |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Back camera (main camera) | (dual camera)
64 megapixels
12MP ultrawidef/2.2112°14mm1/2.55"1.4µmPDAF | (dual camera)
12 megapixels
5MP depthf/2.4 |
| Main camera resolution | 10120x6328 pixels | 4000x3000 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash on both cameras |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 27mm lens |
| Sensor size | 1/1.73" inches | 1/2.9" inches |
| Pixel size | 0.8µm pixel | 1.25µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (4-axis): Optical stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Front camera (secondary) | 12 megapixels | 13 megapixels |
| Front camera resolution | 4000x3000 pixels | 4128x3096 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.5 (aperture) | f/2.0 (aperture) |
| Focal length | 28mm lens | 26mm lens |
| Sensor size | 1/2.93" inches | 1/3.1" inches |
| Pixel size | 1.22µm pixel | 1.12µm pixel |
🔉 Sound and multimedia |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.2 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax wifi6/6E (2.4Ghz, 5Ghz, 6Ghz) + MIMO
WiFi Direct, hotspot | 802.11 b/g/n (2.4Ghz)
WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Sensors | Accelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Hall effect
Proximity sensor | Accelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Battery type | LiPo: Li-Ion polymer (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 4000 mAh | 5000 mAh |
| Charger, watts | 30W Fast battery charging
Reverse charging USB between devices
Quick Charge 4
USB Power Delivery 3.0 | 10W (5V/2A) Standard charging |
| Talk time autonomy | feature not registered | 45 hours (1.9 days) |
| Standby | feature not registered | 833.3 hours (34.7 days) |
➕ Other features |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | - Colors: Obsidian Black, Horizon Silver
- ZenUI 8
- Always-on display
- 32-bit/384kHz audio | - Colors: Blue, Titanium
- Display: 19:9, 450nits
- Touch glove display
- Sony IMX486 sensor back camera
- NXP sound amplifier |
☢️ Radiation rate |
| Asus Zenfone 8 (128GB/8GB) | Asus Zenfone Max Pro M2 (ZB631KL 128GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |