Sony Xperia U (ST25i) vs Sony Ericsson Xperia X2
Side by side comparison between Sony Xperia U vs Sony Ericsson Xperia X2 phones, differences, pros, cons and full specifications. What's the better?
,
3.5"
LED
LED
480x854
5
MP
MP
0.3mp
512MB
RAM
RAM
Dual-core
1320
mAh
mAh
(Removable)
vs
3.2"
TFT
TFT
480x800
8
MP
MP
0.3mp
256MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
What's the better phone? Sony Xperia U (ST25i)
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!
18 Advantages 
5 Advantages | 17 Common items in both devices |
| LED flash |
| Only digital zoom |
| Autofocus |
| (front) 0.3MP |
| 3G HSUPA |
| Accelerometer |
| Ambient light sensor |
| +10 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 | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Model | Xperia U (ST25i) | Xperia X2 |
| Other model names | Sony Xperia U ST25, Sony Kumquat | Sony Ericsson Xperia X2i, X2a, SE Vulcan |
| Country or region available |  (Global, International) | feature not registered |
| Brand | Sony | Sony Ericsson |
| Release date | 5/7/2012, Announced: 2/1/2012 | 1/5/2010 |
| Depth | 12 millimeters (0.47 inches) | 16 millimeters (0.63 inches) |
| Size (width x height) | 54 x 112 millimeters (2.13 x 4.41 in) | 54 x 110 millimeters (2.13 x 4.33 in) |
| Weight | 110 grams (3.85 ounces) | 155 grams (5.43 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Display type | TFT LED-Backlit LCD | TFT LCD |
| Screen size | 3.5" inches | 3.2" inches |
| Screen-to-body ratio | ~55.8% (screen-to-body ratio) | ~49.1% (screen-to-body ratio) |
| Display resolution | 480x854 pixels (16:9) | 480x800 pixels |
| Touchscreen | Capacitive Multitouch 4-points | Resistive Single touch 1-point |
| Pixel density (dot pitch) | 280 PPI | 292 PPI |
| Colors | 16 million | 65 thousand |
| Scratch-resistant glass | Scratch-resistant glass | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| System version | Android 2.3.7 Gingerbread | Windows Mobile 6.5 Professional Titanium |
| Firmware update | Android 4.0.4 Ice Cream Sandwich ICS | Windows Mobile 6.5.3 Professional |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Chipset | 32bit: ST-Ericsson NovaThor U8500 (45nm) | 32bit: Qualcomm MSM7200A |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Single-core, 1 processor: 1x 528MHz ARM1136EJ-S (Single-core) |
| GPU graphical controller | ARM Mali-400 MP1 | Qualcomm Adreno 130 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| RAM memory | 512MB LPDDR2 | 256MB LPDDR |
| Internal storage | 8GB (4GB available) | 512MB (110MB available) |
| External storage | Not supported | Until 16GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| 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 | 14.4/5.76 Mbps | 7.2/2 Mbps |
| Network technology | 2G, 3G | 2G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 900/2100 | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA | CSD, 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 | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Back camera (main camera) | 5 megapixels | 8 megapixels |
| Main camera resolution | 2592x1944 pixels | 3264x2448 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | WVGA (800x480) 30 fps |
| Flash | LED flash | 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 | Autofocus | Autofocus |
| Touch focus | Supported | feature not registered |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | 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 | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Front camera (secondary) | 0.3 megapixels | 0.3 megapixels |
| Front camera resolution | 640x480 pixels | 640x480 pixels |
| Video recording (secondary) | VGA (640x480) | QVGA (320x240) |
| 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 | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263, H.264, WMV | MP4, Xvid, H.264, H.263, WMV9 |
| Audio formats | MP3, eAAC+, WMA, WAV | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Proprietary TV-out |
| Bluetooth | 2.1 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g [wifi3] (2.4GHz) |
| DLNA | Supported | feature not registered |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Battery type | Li-Ion: lithium-ion (Removable) BA600 | LiPo: li-ion polymer (Removable) BST-41 |
| Battery capacity | 1320 mAh | 1500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 5.6 hours | 6 hours |
| Standby | 472 hours (19.7 days) | 640 hours (26.7 days) |
➕ Other features | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, Flash player | feature not registered |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Retractable QWERTY keyboard |
| Miscellaneous | • 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 | • Colors: Elegant Black, Modern Silver • 4GB SanDisk microSD included • Touch focus • DLNA • Pocket Office • Stereo FM via software update • Videocall functionality via software update Java framework |
☢️ Radiation rate | ||
| Sony Xperia U (ST25i) | Sony Ericsson Xperia X2 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.09W/kg (head), 0.93W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 1.62W/kg (head) | feature not registered |