Samsung Star Duos (GT-B7722) vs ZTE X990 (Messenger edition)
Side by side comparison between Samsung Star Duos vs ZTE X990 phones, differences, pros, cons and full specifications. What's the better?
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What's the better phone? Samsung Star Duos (GT-B7722)
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!
15 Advantages 
5 Advantages | 9 Common items in both devices |
| TFT LCD |
| 260 thousand |
| Only digital zoom |
| Resistive |
| Single |
| Li-Ion: lithium-ion (Removable) |
| 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 | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Change model | ||
| Model | Star Duos (GT-B7722) | X990 (Messenger edition) |
| Other model names | Samsung GT-B7722/H, Samsung B7722i Duos | ZTE X990 Messenger edition by SFR |
| Country or region available | feature not registered | feature not registered |
| Brand | Samsung | ZTE |
| Release date | 6/1/2010 | 3/1/2010 |
| Depth | 14.3 millimeters (0.56 inches) | 11.8 millimeters (0.46 inches) |
| Size (width x height) | 55.5 x 113.5 millimeters (2.19 x 4.47 in) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) |
| Weight | 112 grams (3.92 ounces) | 90 grams (3.15 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 3.2" inches | 2.4" inches |
| Screen-to-body ratio | ~46.3% (screen-to-body ratio) | ~27.5% (screen-to-body ratio) |
| Display resolution | 240x400 pixels | 320x240 pixels |
| Touchscreen | Resistive Single touch 1-point | Resistive Single touch 1-point |
| Pixel density (dot pitch) | 146 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 | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| System version | Proprietary OS | Windows Mobile 6.5 Professional Titanium |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Chipset | 32bit | feature not registered |
| CPU | Single-core, 1 processor: 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 | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| RAM memory | feature not registered | feature not registered |
| Internal storage | 270MB | 128MB (5MB available) |
| External storage | Until 16GB microSD, microSDHC (dedicated slot) | Until 8GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 3.6 Mbps | 0.236 Mbps |
| Network technology | 2G, 3G | 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 2100 | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA | GPRS, EDGE |
| Secondary 2G network | GSM 900/1800 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Back camera (main camera) | 5 megapixels | 2 megapixels |
| Main camera resolution | 2560x1920 pixels | 1600x1200 pixels |
| Video recording (primary) | QVGA (320x240) 30 fps | QCIF (176x144) |
| Flash | LED flash | 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 | Autofocus | Not supported |
| Touch focus | feature not registered | feature not registered |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | feature not registered |
| BSI sensor | feature not registered | feature not registered |
| HDR | feature not registered | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| 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 | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | feature not registered |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | via Micro-USB | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.1 + A2DP | 2.0 + A2DP |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | Not supported |
| DLNA | feature not registered | feature not registered |
| GPS | Not supported | Not supported |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | feature not registered |
🧭 Sensors | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Sensors | Accelerometer | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| 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 | 5.6 hours | 8 hours |
| Standby | 330 hours (13.8 days) | 480 hours (20 days) |
➕ Other features | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| Call control | Voice recorder | Voice recorder |
| Messaging | SMS, MMS, E-mail, Push 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 | HTML, XHTML | WAP, HTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Fixed QWERTY keyboard |
| Miscellaneous | • Colors: Black • SHP OS • Dolphin 1.0 browser • 3D Sound Technology • Java framework | • Colors: Black on white, Black on silver • Windows Live Messenger • Word, Excel, PowerPoint, OneNote, PDF viewer • Java framework |
☢️ Radiation rate | ||
| Samsung Star Duos (GT-B7722) | ZTE X990 (Messenger edition) | |
| 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 |