Asus Zenfone Max Pro M2 (ZB631KL 128GB) vs ZTE X990 (Single-sim)
Side by side comparison between Asus Zenfone Max Pro (M2) vs ZTE X990 phones, differences, pros, cons and full specifications. What's the better?
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6.26"
IPS
IPS
1080x2280
12
MP
MP
13mp
6GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
What's the better phone? Asus Zenfone Max Pro M2 (ZB631KL 128GB)
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!
27 Advantages 
2 Advantages | 6 Common items in both devices |
| Only digital zoom |
| Hands-free calling |
| Vibrating alert |
| 3.5mm jack |
| FM / FM (RDS) |
| MicroUSB 2.0, USB OTG On-The-Go / MicroUSB 2.0 |
| + 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 128GB) | ZTE X990 (Single-sim) | |
| Model | Zenfone Max Pro M2 (ZB631KL 128GB) | X990 (Single-sim) |
| Other model names | Asus Zenfone Max Pro M2 ZB631KL (6GB RAM), X01BDA | ZTE X990 Single-sim |
| Country or region available |  (Global, International) | feature not registered |
| Brand | Asus | ZTE |
| Release date | 12/1/2018 | 5/1/2010 |
| Depth | 8.5 millimeters (0.33 inches) | 11.8 millimeters (0.46 inches) |
| Size (width x height) | 75.5 x 157.9 millimeters (2.97 x 6.22 in) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) |
| Weight | 175 grams (6.13 ounces) | 95 grams (3.33 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 6.26" inches | 2.4" inches |
| Screen-to-body ratio | ~82% (screen-to-body ratio) | ~27.5% (screen-to-body ratio) |
| Display resolution | 1080x2280 pixels (19:9) | 320x240 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Not supported |
| Pixel density (dot pitch) | 403 PPI | 167 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Gorilla Glass 6 | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | 450nits[typ] | feature not registered |
🤖 Operating System | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| System version | Android 8.1 Oreo | Proprietary OS |
| Firmware update | Android 9.0 Pie | feature not registered |
| User Interface | ZenUI | feature not registered |
⚙️ Processor | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 (SDM660) (14nm) | feature not registered |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | Qualcomm Adreno 512 (650MHz) | feature not registered |
| Performance (benchmark) | AnTuTu: 124039 (v7) Geekbench: 5169 (v4.4) GFXBench: 7.6fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| RAM memory | 6GB LPDDR4 | feature not registered |
| Internal storage | 128GB (110GB available) eMMC 5.1 | 128MB (50MB available) |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 8GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 400/75 Mbps | 0.236 Mbps |
| Network technology | 2G, 3G, 4G | 2G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Dual-Band 900/1800 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 900/1800 |
| Primary 3G network | UMTS 850/900/2100 | Not supported |
| 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) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/2100 | Not supported |
| 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) | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
📷 Camera | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Back camera (main camera) | (dual camera) 12 megapixels 5MP depth f/2.4 | 2 megapixels |
| Main camera resolution | 4000x3000 pixels | 1600x1200 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | QCIF (176x144) |
| Flash | LED flash on both cameras | Not supported |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/2.9" inches | feature not registered |
| Pixel size | 1.25µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | feature not registered |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Supported | feature not registered |
| HDR | HDR photo only main camera | feature not registered |
| Camera extras | 1080p@30/60fps Sony IMX486 sensor | feature not registered |
📸 Front camera | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Front camera (secondary) | 13 megapixels | Not supported |
| Front camera resolution | 4128x3096 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | LED | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | 26mm (lens) | feature not registered |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Loudspeaker | Supported NXP amplifier | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro-B USB MHL | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 2.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | Not supported |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | Not supported |
| NFC | Supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 5000 mAh | 900 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 45 hours (1.9 days) | 8 hours |
| Standby | 833.3 hours (34.7 days) | 500 hours (20.8 days) |
➕ Other features | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | WAP, HTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Fixed QWERTY keyboard |
| Miscellaneous | • Colors: Blue, Titanium • Touch glove display | • Colors: Black, White on orange • Java framework |
☢️ Radiation rate | ||
| Asus Zenfone Max Pro M2 (ZB631KL 128GB) | ZTE X990 (Single-sim) | |
| 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 |