ZTE X990 (Single-sim) vs Lenovo Vibe Z2 Pro (K920)
Side by side comparison between ZTE X990 vs Lenovo Vibe Z2 Pro phones, differences, pros, cons and full specifications. What's the better?
,
vs
6"
IPS
IPS
1440x2560
16
MP
MP
5mp
3GB
RAM
RAM
Quad-core
4000
mAh
mAh
(Non removable)
What's the better phone? Lenovo Vibe Z2 Pro (K920)
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!
3 Advantages 
25 Advantages | 4 Common items in both devices |
| Only digital zoom |
| 3.5mm jack |
| FM (RDS) / FM |
| 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 | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Model | X990 (Single-sim) | Vibe Z2 Pro (K920) |
| Other model names | ZTE X990 Single-sim | Phablet Lenovo K920 Vibe Z2 Pro LTE-A |
| Country or region available | feature not registered | feature not registered |
| Brand | ZTE | Lenovo |
| Release date | 5/1/2010 | 9/1/2014 |
| Depth | 11.8 millimeters (0.46 inches) | 7.7 millimeters (0.3 inches) |
| Size (width x height) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) | 81.3 x 156 millimeters (3.2 x 6.14 in) |
| Weight | 95 grams (3.33 ounces) | 179 grams (6.27 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 2.4" inches | 6" inches |
| Screen-to-body ratio | ~27.5% (screen-to-body ratio) | ~78.3% (screen-to-body ratio) |
| Display resolution | 320x240 pixels | 1440x2560 pixels |
| Touchscreen | Not supported | Capacitive Multitouch |
| Pixel density (dot pitch) | 167 PPI | 490 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| System version | Proprietary OS | Android 4.4.2 KitKat |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Chipset | feature not registered | 32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm) |
| CPU | Single-core, 1 processor: Single-core | Quad-core, 1 processor: 4x 2.5GHz Krait 400 (Quad-core) |
| GPU graphical controller | feature not registered | Qualcomm Adreno 330 578Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| RAM memory | feature not registered | 3GB LPDDR3 |
| Internal storage | 128MB (50MB available) | 32GB |
| External storage | Until 8GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 0.236 Mbps | 150/50 Mbps |
| Network technology | 2G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Dual-Band 900/1800 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 900/1800 | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE 800/850/900/1800/2100/2600 |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Back camera (main camera) | 2 megapixels | 16 megapixels |
| Main camera resolution | 1600x1200 pixels | 4608x3456 pixels |
| Video recording (primary) | QCIF (176x144) | 4K UHD (3840x2160) 30 fps |
| Flash | Not supported | Dual-LED flash |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Supported |
| HDR | feature not registered | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Front camera (secondary) | Not supported | 5 megapixels |
| Front camera resolution | Not supported | 2592x1944 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | 2 microphones or more |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.0 + A2DP | 4.0 + A2DP |
| WiFi | Not supported | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) |
| DLNA | feature not registered | Not supported |
| GPS | Not supported | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Sensors | Not supported | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 900 mAh | 4000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 8 hours | 45 hours (1.9 days) |
| Standby | 500 hours (20.8 days) | 940 hours (39.2 days) |
➕ Other features | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| Call control | Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS, MMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | WAP, HTML | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Fixed QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Black, White on orange • Java framework | • Colors: Black, White, Gold • WiFi hotspot • Java framework |
☢️ Radiation rate | ||
| ZTE X990 (Single-sim) | Lenovo Vibe Z2 Pro (K920) | |
| 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 |