ZTE X990 (Messenger edition) vs Samsung Galaxy Ace Duos (GT-S6802B)
Side by side comparison between ZTE X990 vs Samsung Galaxy Ace Duos phones, differences, pros, cons and full specifications. What's the better?
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What's the better phone? Samsung Galaxy Ace Duos (GT-S6802B)
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!
2 Advantages 
20 Advantages | 9 Common items in both devices |
| TFT LCD |
| Only digital zoom |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| Vibrating alert |
| 3.5mm jack |
| FM (RDS) |
| +2 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 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Model | X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) |
| Other model names | ZTE X990 Messenger edition by SFR | Samsung Galaxy Ace Duos S6802 Dual-Sim |
| Country or region available | feature not registered |   (Latin America), Brazil |
| Brand | ZTE | Samsung |
| Release date | 3/1/2010 | 6/1/2012 |
| Depth | 11.8 millimeters (0.46 inches) | 11.5 millimeters (0.45 inches) |
| Size (width x height) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) | 61.5 x 112.74 millimeters (2.42 x 4.44 in) |
| Weight | 90 grams (3.15 ounces) | 122 grams (4.27 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 2.4" inches | 3.5" inches |
| Screen-to-body ratio | ~27.5% (screen-to-body ratio) | ~52.6% (screen-to-body ratio) |
| Display resolution | 320x240 pixels | 320x480 pixels |
| Touchscreen | Resistive Single touch 1-point | Capacitive Multitouch |
| Pixel density (dot pitch) | 167 PPI | 165 PPI |
| Colors | 260 thousand | 16 million |
| 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 | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| System version | Windows Mobile 6.5 Professional Titanium | Android 2.3.6 Gingerbread |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Chipset | feature not registered | 32bit: Broadcom BCM21553 (65nm) |
| CPU | Single-core, 1 processor: Single-core | Single-core, 1 processor: 1x 832MHz ARM1136 (Single-core) |
| GPU graphical controller | feature not registered | VideoCore IV |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| RAM memory | feature not registered | 512MB |
| Internal storage | 128MB (5MB available) | 4GB (3GB available) |
| External storage | Until 8GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 0.236 Mbps | 7.2 Mbps |
| Network technology | 2G | 2G, 3G |
| 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 850/2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA |
| 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 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Back camera (main camera) | 2 megapixels | 5 megapixels |
| Main camera resolution | 1600x1200 pixels | 2560x1920 pixels |
| Video recording (primary) | QCIF (176x144) | VGA (640x480) 30 fps |
| 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 | Autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | Not supported |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Not supported |
| HDR | feature not registered | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| 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 | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | Not supported |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| 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 | 3.0 + A2DP |
| WiFi | Not supported | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | feature not registered | Not supported |
| GPS | Not supported | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Sensors | Not supported | Accelerometer Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) EB464358VU |
| Battery capacity | 900 mAh | 1300 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 8 hours | 6.5 hours |
| Standby | 480 hours (20 days) | 410 hours (17.1 days) |
➕ Other features | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| Call control | Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS, MMS, E-mail | SMS (Swype), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | WAP, HTML | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Fixed QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Black on white, Black on silver • Windows Live Messenger • Word, Excel, PowerPoint, OneNote, PDF viewer • Java framework | • Colors: White, Black • Samsung TouchWiz UX UI • WiFi hotspot • Java framework |
☢️ Radiation rate | ||
| ZTE X990 (Messenger edition) | Galaxy Ace Duos (GT-S6802B) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.607W/kg (head), 0.768W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.764W/kg (head), 0.915W/kg (body) |