Sony Xperia U (ST25a) vs Sony Ericsson Xperia Ray (ST18i)
Side by side comparison between Sony Xperia U vs Sony Ericsson Xperia Ray 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
4"
LED
LED
480x854
8
MP
MP
0.3mp
512MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
What's the better phone? Sony Ericsson Xperia Ray (ST18i)
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!
 4 Advantages Sony Xperia U (ST25a) | vs |  6 Advantages Sony Ericsson Xperia Ray (ST18i) |
| +1GHz 32bit Dual-core (45nm)14% More powerful processor, you can open your applications faster | vs | 1GHz 32bit Single-core |
| +8GB (4GB available)13 times More internal storage for applications and files | vs | 1GB (300MB available) |
| +280 PPI14% Crisper display of text, images and videos because it has more pixels per inch (ppi) | vs | 245 PPI |
| +(3G HSUPA) 14.4 Mbps100% Faster for surfing the internet and download files | vs | (3G HSUPA) 7.2 Mbps |
| Not supported | vs | +Until 32GB microSD, microSDHCAdvantage More external storage for files using memory cards |
| 110 grams (3.85 ounces) | vs | +100 grams (3.5 ounces)10% Lighter |
| 12 millimeters (0.47 inches) | vs | +9.4 millimeters (0.37 inches)28% Thinner |
| 3.5" | vs | +4"14% Larger screen |
| (back) 5MP | vs | +(back) 8MP59% Higher resolution main camera |
| 1320 mAh | vs | +1500 mAh14% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use |
| 29 Common items in both devices |
| 512MB LPDDR2 |
| Plastic body, glass front |
| TFT LED-Backlit LCD |
| 16 million |
| 480x854 pixels |
| LED flash |
| Only digital zoom |
| +22 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 (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Model | Xperia U (ST25a) | Xperia Ray (ST18i) |
| Other model names | Sony Xperia U ST25, Sony Kumquat | Sony Ericsson Xperia Ray ST18, SE Urushi |
| Country or region available |     (Latin America), Brazil, Canada, USA |  (Global, International) |
| Brand | Sony | Sony Ericsson |
| Release date | 5/7/2012 | 9/1/2011 |
| Depth | 12 millimeters (0.47 inches) | 9.4 millimeters (0.37 inches) |
| Size (width x height) | 54 x 112 millimeters (2.13 x 4.41 in) | 53 x 111 millimeters (2.09 x 4.37 in) |
| Weight | 110 grams (3.85 ounces) | 100 grams (3.5 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Display type | TFT LED-Backlit LCD | TFT LED-Backlit LCD |
| Screen size | 3.5" inches | 4" inches |
| Screen-to-body ratio | ~55.8% (screen-to-body ratio) | ~74.9% (screen-to-body ratio) |
| Display resolution | 480x854 pixels (16:9) | 480x854 pixels |
| Touchscreen | Capacitive Multitouch 4-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 280 PPI | 245 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Scratch-resistant glass |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| System version | Android 2.3.7 Gingerbread | Android 2.3.3 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 (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Chipset | 32bit: ST-Ericsson NovaThor U8500 (45nm) | 32bit: Qualcomm Snapdragon S2 MSM8255 (45nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Single-core, 1 processor: 1x 1GHz Scorpion (Single-core) |
| GPU graphical controller | ARM Mali-400 MP1 | Qualcomm Adreno 205 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| RAM memory | 512MB LPDDR2 | 512MB LPDDR2 |
| Internal storage | 8GB (4GB available) | 1GB (300MB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| 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 | 7.2/5.76 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 850/1900/2100 | UMTS 900/2100 |
| 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 (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Back camera (main camera) | 5 megapixels | 8 megapixels |
| Main camera resolution | 2592x1944 pixels | 3264x2448 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 |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Front camera (secondary) | 0.3 megapixels | 0.3 megapixels |
| Front camera resolution | 640x480 pixels | 640x480 pixels |
| Video recording (secondary) | VGA (640x480) | 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 | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263, H.264, WMV | MP4, H.264, H.263 |
| Audio formats | MP3, eAAC+, WMA, WAV | MP3, WAV |
🔌 Connectivity | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| 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 (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Battery type | Li-Ion: lithium-ion (Removable) BA600 | Li-Ion: lithium-ion (Removable) BA700 |
| 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 | 7 hours |
| Standby | 472 hours (19.7 days) | 440 hours (18.3 days) |
➕ Other features | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| 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, Gold, White, Pink • 4GB microSD included • Open ES 1.1 • Video stabilizer • PlayNow • Sony Mobile BRAVIA Engine • SE Timescape • Wi-Fi Mobile Hotspot • Java framework |
☢️ Radiation rate | ||
| Sony Xperia U (ST25a) | Sony Ericsson Xperia Ray (ST18i) | |
| 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 |