NGM Droid Duo vs ZTE X990D (Dual-sim)
Side by side comparison between NGM Droid Duo vs ZTE X990 phones, differences, pros, cons and full specifications. What's the better?
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What's the better phone? NGM Droid Duo
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!
10 Advantages 
4 Advantages | 14 Common items in both devices |
| TFT LCD |
| 260 thousand |
| Only digital zoom |
| 2G EDGE |
| 0.236 Mbps |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| +7 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 | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Change model | ||
| Model | Droid Duo | X990D (Dual-sim) |
| Other model names | New Generation Mobile NGM Droid Duo Dual Sim | ZTE X990 Dual-sim |
| Country or region available | feature not registered | feature not registered |
| Brand | NGM | ZTE |
| Release date | 9/1/2011 | 5/1/2010 |
| Depth | 17 millimeters (0.67 inches) | 11.8 millimeters (0.46 inches) |
| Size (width x height) | 56 x 112 millimeters (2.2 x 4.41 in) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) |
| Weight | 120 grams (4.2 ounces) | 95 grams (3.33 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 3" inches | 2.4" inches |
| Screen-to-body ratio | ~40.8% (screen-to-body ratio) | ~27.5% (screen-to-body ratio) |
| Display resolution | 240x400 pixels | 320x240 pixels |
| Touchscreen | Resistive Single touch 1-point | Not supported |
| Pixel density (dot pitch) | 155 PPI | 167 PPI |
| Colors | 260 thousand | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| System version | Android 1.6 Donut | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Chipset | 32bit | feature not registered |
| CPU | Single-core, 1 processor: Single-core Marvell (Single-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | feature not registered | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| RAM memory | feature not registered | feature not registered |
| Internal storage | 10MB | 128MB (50MB available) |
| External storage | Until 16GB microSD, microSDHC (dedicated slot) | Until 8GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Dual-SIM | Dual-SIM Active - Call active on both sim cards (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 0.236 Mbps | 0.236 Mbps |
| Network technology | 2G | 2G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Tri-Band 900/1800/1900 | Dual-Band 900/1800 |
| Primary 2G network | GSM 900/1800/1900 | GSM 900/1800 |
| Primary 3G network | Not supported | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE | GPRS, EDGE |
| Secondary 2G network | GSM 900/1800/1900 | GSM 900/1800 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS |
📷 Camera | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Back camera (main camera) | 5 megapixels | 2 megapixels |
| Main camera resolution | 2592x1944 pixels | 1600x1200 pixels |
| Video recording (primary) | VGA (640x480) | QCIF (176x144) |
| 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 |
| Autofocus | Not supported | Not supported |
| Touch focus | Not supported | feature not registered |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Not supported | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | Not supported | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Front camera (secondary) | Not supported | Not supported |
| Front camera resolution | Not supported | Not supported |
| Video recording (secondary) | Not supported | Not supported |
| 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 | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | feature not registered |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263 | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, AAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| 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 | 2.0 + A2DP |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | Not supported |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS | Not supported |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Sensors | Not supported | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1200 mAh | 900 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 5 hours | 8 hours |
| Standby | 200 hours (8.3 days) | 500 hours (20.8 days) |
➕ Other features | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| Call control | Voice recorder | Voice recorder |
| Messaging | SMS, MMS, E-mail | SMS, MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | WAP, HTML | WAP, HTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Fixed QWERTY keyboard |
| Miscellaneous | • Colors: Black • 1GB microSD included | • Colors: Black, White Java framework |
☢️ Radiation rate | ||
| NGM Droid Duo | ZTE X990D (Dual-sim) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.402W/kg (body) | feature not registered |