Sony Xperia U (ST25i) vs Sony Xperia U (ST25a)
Side by side comparison between Sony Xperia U (ST25i) vs Sony Xperia U (ST25a) 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
3.5"
LED
LED
480x854
5
MP
MP
0.3mp
512MB
RAM
RAM
Dual-core
1320
mAh
mAh
(Removable)
What's the better phone?
The comparison did not identify relevant items because the devices are similar. Check the table below to identify other different features (network frequencies, region and others).
| 40 Common items in both devices |
| 1GHz 32bit Dual-core (45nm) |
| 512MB LPDDR2 |
| 8GB (4GB available) |
| 110 grams (3.85 ounces) |
| 12 millimeters (0.47 inches) |
| Plastic body, glass front |
| TFT LED-Backlit LCD |
| +33 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 Xperia U (ST25a) | |
| Model | Xperia U (ST25i) | Xperia U (ST25a) |
| Other model names | Sony Xperia U ST25, Sony Kumquat | Sony Xperia U ST25, Sony Kumquat |
| Country or region available |  (Global, International) |     (Latin America), Brazil, Canada, USA |
| Brand | Sony | Sony |
| Release date | 5/7/2012, Announced: 2/1/2012 | 5/7/2012 |
| Depth | 12 millimeters (0.47 inches) | 12 millimeters (0.47 inches) |
| Size (width x height) | 54 x 112 millimeters (2.13 x 4.41 in) | 54 x 112 millimeters (2.13 x 4.41 in) |
| Weight | 110 grams (3.85 ounces) | 110 grams (3.85 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| Display type | TFT LED-Backlit LCD | TFT LED-Backlit LCD |
| Screen size | 3.5" inches | 3.5" inches |
| Screen-to-body ratio | ~55.8% (screen-to-body ratio) | ~55.8% (screen-to-body ratio) |
| Display resolution | 480x854 pixels (16:9) | 480x854 pixels (16:9) |
| Touchscreen | Capacitive Multitouch 4-points | Capacitive Multitouch 4-points |
| Pixel density (dot pitch) | 280 PPI | 280 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Scratch-resistant glass |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| System version | Android 2.3.7 Gingerbread | Android 2.3.7 Gingerbread |
| Firmware update | Android 4.0.4 Ice Cream Sandwich ICS | Android 4.0.4 Ice Cream Sandwich ICS |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| Chipset | 32bit: ST-Ericsson NovaThor U8500 (45nm) | 32bit: ST-Ericsson NovaThor U8500 (45nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) |
| GPU graphical controller | ARM Mali-400 MP1 | ARM Mali-400 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| RAM memory | 512MB LPDDR2 | 512MB LPDDR2 |
| Internal storage | 8GB (4GB available) | 8GB (4GB available) |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Sony Xperia U (ST25i) | 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 | 14.4/5.76 Mbps | 14.4/5.76 Mbps |
| Network technology | 2G, 3G | 2G, 3G |
| 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 | UMTS 850/1900/2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA | 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 Xperia U (ST25a) | |
| Back camera (main camera) | 5 megapixels | 5 megapixels |
| Main camera resolution | 2592x1944 pixels | 2592x1944 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | HD (1280x720) 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 | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| Front camera (secondary) | 0.3 megapixels | 0.3 megapixels |
| Front camera resolution | 640x480 pixels | 640x480 pixels |
| Video recording (secondary) | VGA (640x480) | 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 | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263, H.264, WMV | MP4, H.263, H.264, WMV |
| Audio formats | MP3, eAAC+, WMA, WAV | MP3, eAAC+, WMA, WAV |
🔌 Connectivity | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.1 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Supported | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| Battery type | Li-Ion: lithium-ion (Removable) BA600 | Li-Ion: lithium-ion (Removable) BA600 |
| Battery capacity | 1320 mAh | 1320 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 5.6 hours | 5.6 hours |
| Standby | 472 hours (19.7 days) | 472 hours (19.7 days) |
➕ Other features | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| 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 | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| 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: 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 | ||
| Sony Xperia U (ST25i) | Sony Xperia U (ST25a) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.09W/kg (head), 0.93W/kg (body) | 1.09W/kg (head), 0.93W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 1.62W/kg (head) | 1.62W/kg (head) |