Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) vs Xiaomi 12S Ultra (256GB/12GB)
Side by side comparison between Asus Zenfone Max Pro (M2) vs Xiaomi 12S Ultra phones, differences, pros, cons and full specifications. What's the better?
,
6.26"
IPS
IPS
1080x2280
12
MP
MP
13mp
6GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.73"
AMOLED
AMOLED
1440x3200
50
MP
MP
32mp
12GB
RAM
RAM
Octa-core
4860
mAh
mAh
(Non removable)
What's the better phone? Xiaomi 12S Ultra (256GB/12GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
9 Advantages 
31 Advantages | 21 Common items in both devices |
| PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus |
| BSI sensor |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Compass |
| +14 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Model | Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | 12S Ultra (256GB/12GB) |
| Other model names | Asus Zenfone Max Pro M2 ZB631KL (6GB RAM), X01BDA | 小米12S Ultra 5G (2203121C) 12GB RAM |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Asus | Xiaomi |
| Release date | 12/1/2018 | 7/9/2022, Announced: 7/4/2022 |
| Depth | 8.5 millimeters (0.33 inches) | 9 millimeters (0.35 inches) |
| Size (width x height) | 75.5 x 157.9 millimeters (2.97 x 6.22 in) | 74.97 x 163.17 millimeters (2.95 x 6.42 in) |
| Weight | 175 grams (6.13 ounces) | 225 grams (7.88 ounces) |
| Build, materials | Plastic body, glass front | Aluminum frame, glass front, leather back |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Display type | TFT IPS LCD | AMOLED |
| Screen size | 6.26" inches | 6.73" inches |
| Screen-to-body ratio | ~82% (screen-to-body ratio) | ~89.4% (screen-to-body ratio) |
| Display resolution | 1080x2280 pixels (19:9) | 1440x3200 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 403 PPI | 521 PPI |
| Colors | 16 million | 1 billion |
| Scratch-resistant glass | Gorilla Glass 6 | Gorilla Glass Victus |
| Refresh rate | 60Hz | 120Hz |
| Display features | 450nits[typ] | 1000nits[typ], 1500nits[peak] Dolby Vision/HDR10+ |
🤖 Operating System | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| System version | Android 8.1 Oreo | Android 12 |
| Firmware update | Android 9.0 Pie | Android 13 |
| User Interface | ZenUI | MIUI 13 / 14 |
⚙️ Processor | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 (SDM660) (14nm) | 64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Octa-core, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 512 (650MHz) | Qualcomm Adreno 730 (818MHz) |
| Performance (benchmark) | AnTuTu: 124039 (v7) Geekbench: 5169 (v4.4) GFXBench: 7.6fps (ES 3.1 onscreen) | AnTuTu: 1039412 (v9) Geekbench: 4300 (v5.1) GFXBench: 51fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| RAM memory | 6GB LPDDR4 | 12GB LPDDR5 |
| Internal storage | 64GB (51GB available) eMMC 5.1 | 256GB (218GB available) UFS 3.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 400/75 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/2100 | CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat13 VoLTE Global version; LTE (1, 3, 5, 7, 8, 20) TD-LTE (40) America version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 28) TD-LTE (38, 41) | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE |
| Primary 5G network | Not supported | SA/NSA (1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/2100 | UMTS 800/850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat13 VoLTE Global version; LTE (1, 3, 5, 7, 8, 20) TD-LTE (40) America version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 28) TD-LTE (38, 41) | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Back camera (main camera) | (dual camera) 12 megapixels 5MP depth f/2.4 | (quad camera) 50 megapixels 48MP periscope telephoto f/4.1120mm1/2"0.8µmPDAFOIS5x-optical-zoom 48MP ultrawide f/2.213mm128°1/2"0.8µmDual-PixelPDAF 0.3MP TOF 3D depth |
| Main camera resolution | 4000x3000 pixels | 8160x6120 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 24 fps |
| Flash | LED flash on both cameras | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.9 (aperture) |
| Focal length | 27mm (lens) | 23mm (lens) |
| Sensor size | 1/2.9" inches | 1/1" inches |
| Pixel size | 1.25µm pixel | 1.6µm pixel |
| Autofocus | PDAF: phase detection autofocus | LDAF/PDAF: laser/phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo only main camera | HDR photo/video on both cameras |
| Camera extras | 1080p@30/60fps Sony IMX486 sensor | 4K@60fps 1080p@480fps Sony IMX989 Leica optics |
📸 Front camera | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Front camera (secondary) | 13 megapixels | 32 megapixels |
| Front camera resolution | 4128x3096 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | LED | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.4 (aperture) |
| Focal length | 26mm (lens) | 25mm (lens) |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1.12µm pixel | 0.7µm pixel |
🔉 Sound and multimedia | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Loudspeaker | Supported NXP amplifier | Stereo sound 24-bit/192kHz Tuned by Harman Kardon |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| 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 Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Micro-B USB MHL | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.2 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
| NFC | Supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 4860 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | 67W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 |
| Inductive / wireless charging | Not supported | 50W Qi wireless charging 10W Reverse wireless charging |
| Talk time autonomy | 45 hours (1.9 days) | feature not registered |
| Standby | 833.3 hours (34.7 days) | feature not registered |
➕ Other features | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| 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: Blue, Titanium • Touch glove display | • Colors: Black, Dark Green |
☢️ Radiation rate | ||
| Asus Zenfone Max Pro M2 (ZB631KL 64GB/6GB) | Xiaomi 12S Ultra (256GB/12GB) | |
| 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 |