ZTE X990 (Messenger edition) vs Sony Xperia U (ST25a)
Side by side comparison between ZTE X990 vs Sony Xperia U phones, differences, pros, cons and full specifications. What's the better?
,
vs
3.5"
LED
LED
480x854
5
MP
MP
0.3mp
512MB
RAM
RAM
Dual-core
1320
mAh
mAh
(Removable)
What's the better phone? Sony Xperia U (ST25a)
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 
23 Advantages | 8 Common items in both devices |
| Only digital zoom |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| Vibrating alert |
| 3.5mm jack |
| FM (RDS) |
| MicroUSB 2.0 / MicroUSB 2.0, USB OTG On-The-Go |
| + 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) | Sony Xperia U (ST25a) | |
| Model | X990 (Messenger edition) | Xperia U (ST25a) |
| Other model names | ZTE X990 Messenger edition by SFR | Sony Xperia U ST25, Sony Kumquat |
| Country or region available | feature not registered |     (Latin America), Brazil, Canada, USA |
| Brand | ZTE | Sony |
| Release date | 3/1/2010 | 5/7/2012 |
| Depth | 11.8 millimeters (0.46 inches) | 12 millimeters (0.47 inches) |
| Size (width x height) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) | 54 x 112 millimeters (2.13 x 4.41 in) |
| Weight | 90 grams (3.15 ounces) | 110 grams (3.85 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| Display type | TFT LCD | TFT LED-Backlit LCD |
| Screen size | 2.4" inches | 3.5" inches |
| Screen-to-body ratio | ~27.5% (screen-to-body ratio) | ~55.8% (screen-to-body ratio) |
| Display resolution | 320x240 pixels | 480x854 pixels (16:9) |
| Touchscreen | Resistive Single touch 1-point | Capacitive Multitouch 4-points |
| Pixel density (dot pitch) | 167 PPI | 280 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Not supported | Scratch-resistant glass |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| System version | Windows Mobile 6.5 Professional Titanium | Android 2.3.7 Gingerbread |
| Firmware update | feature not registered | Android 4.0.4 Ice Cream Sandwich ICS |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| Chipset | feature not registered | 32bit: ST-Ericsson NovaThor U8500 (45nm) |
| CPU | Single-core, 1 processor: Single-core | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) |
| GPU graphical controller | feature not registered | ARM Mali-400 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| RAM memory | feature not registered | 512MB LPDDR2 |
| Internal storage | 128MB (5MB available) | 8GB (4GB available) |
| External storage | Until 8GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| 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 | 14.4/5.76 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 850/1900/2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA |
| 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 (Messenger edition) | Sony Xperia U (ST25a) | |
| Back camera (main camera) | 2 megapixels | 5 megapixels |
| Main camera resolution | 1600x1200 pixels | 2592x1944 pixels |
| Video recording (primary) | QCIF (176x144) | HD (1280x720) 30 fps |
| Flash | Not supported | 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 | EIS: Digital stabilization |
| 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) | Sony Xperia U (ST25a) | |
| Front camera (secondary) | Not supported | 0.3 megapixels |
| Front camera resolution | Not supported | 640x480 pixels |
| Video recording (secondary) | Not supported | VGA (640x480) |
| 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) | Sony Xperia U (ST25a) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | 2 microphones or more |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.263, H.264, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, eAAC+, WMA, WAV |
🔌 Connectivity | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.0 + A2DP | 2.1 + A2DP |
| WiFi | Not supported | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | feature not registered | Supported |
| GPS | Not supported | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| Sensors | Not supported | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) BA600 |
| Battery capacity | 900 mAh | 1320 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 8 hours | 5.6 hours |
| Standby | 480 hours (20 days) | 472 hours (19.7 days) |
➕ Other features | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| Call control | Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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, 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: Black, White • Exchangeable bottom caps: White, Black, Pink, Yellow • Sony Reality Display • Sony Mobile BRAVIA Engine • xLoud • 3D surround sound • WiFi hotspot Java framework |
☢️ Radiation rate | ||
| ZTE X990 (Messenger edition) | Sony Xperia U (ST25a) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.09W/kg (head), 0.93W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 1.62W/kg (head) |