ZTE X990 (Single-sim) vs Samsung SGH-D820
Side by side comparison between ZTE X990 vs Samsung SGH-D820 phones, differences, pros, cons and full specifications. What's the better?
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What's the better phone? ZTE X990 (Single-sim)
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 
5 Advantages | 10 Common items in both devices |
| TFT LCD |
| 260 thousand |
| 320x240 pixels |
| Only digital zoom |
| Proprietary OS |
| 2G EDGE |
| Li-Ion: lithium-ion (Removable) |
| +3 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) | Samsung SGH-D820 | |
| Model | X990 (Single-sim) | Samsung SGH-D820 |
| Other model names | ZTE X990 Single-sim | Samsung D820, Samsung SGH-D820 |
| Country or region available | feature not registered |  (Global, International) |
| Brand | ZTE | Samsung |
| Release date | 5/1/2010 | 10/1/2005 |
| Depth | 11.8 millimeters (0.46 inches) | 15.2 millimeters (0.6 inches) |
| Size (width x height) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) | 51 x 95 millimeters (2.01 x 3.74 in) |
| Weight | 95 grams (3.33 ounces) | 99 grams (3.47 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 2.4" inches | 2.1" inches |
| Screen-to-body ratio | ~27.5% (screen-to-body ratio) | ~28.2% (screen-to-body ratio) |
| Display resolution | 320x240 pixels | 240x320 pixels |
| Touchscreen | Not supported | Not supported |
| Pixel density (dot pitch) | 167 PPI | 190 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 | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| System version | Proprietary OS | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| Chipset | feature not registered | 16bit |
| 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 | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| RAM memory | feature not registered | SDRAM |
| Internal storage | 128MB (50MB available) | 128MB (73MB available) |
| External storage | Until 8GB microSD, microSDHC (dedicated slot) | Until 2GB microSD (dedicated slot) |
📶 Mobile networks | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 0.236 Mbps | 0.384 Mbps |
| Network technology | 2G | 2G |
| 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 | 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 | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| Back camera (main camera) | 2 megapixels | 1.3 megapixels |
| Main camera resolution | 1600x1200 pixels | 1280x1024 pixels |
| Video recording (primary) | QCIF (176x144) | CIF (352x288) 13 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 | Not supported |
| Touch focus | feature not registered | Not supported |
| Image stabilization | feature not registered | Not supported |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Not supported |
| 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 (Single-sim) | Samsung SGH-D820 | |
| 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 (Single-sim) | Samsung SGH-D820 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | Not supported |
| Radio | FM (RDS) | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | 3GPP |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| USB | MicroUSB 2.0 | USB 1.1 proprietary connector |
| Audio output | 3.5mm jack | 2.5mm jack |
| TV output | Not supported | Proprietary TV-out |
| Bluetooth | 2.0 + A2DP | 1.2 |
| WiFi | Not supported | Not supported |
| DLNA | feature not registered | Not supported |
| GPS | Not supported | Not supported |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| Sensors | Not supported | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 900 mAh | 800 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 8 hours | 3 hours |
| Standby | 500 hours (20.8 days) | 180 hours (7.5 days) |
➕ Other features | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| Call control | Voice recorder | Voice recorder |
| Messaging | SMS, MMS, E-mail | SMS (T9), MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic |
| Web browser | WAP, HTML | WAP, HTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Fixed QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Black, White on orange Java framework | • Colors: Noir Black, Blue Black, Charcoal Gray • Picsel viewer • SyncML Java framework |
☢️ Radiation rate | ||
| ZTE X990 (Single-sim) | Samsung SGH-D820 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.36W/kg (head), 0.41W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.7W/kg (head) |