Sony Xperia U (ST25i) vs T-Mobile Concord II
Side by side comparison between Sony Xperia U vs T-Mobile Concord II phones, differences, pros, cons and full specifications. What's the better?
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3.5"
LED
LED
480x854
5
MP
MP
0.3mp
512MB
RAM
RAM
Dual-core
1320
mAh
mAh
(Removable)
vs
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!
10 Advantages 
10 Advantages | 24 Common items in both devices |
| Plastic body, glass front |
| 60Hz |
| 16 million |
| (back) 5MP |
| LED flash |
| Only digital zoom |
| Autofocus |
| +17 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) | T-Mobile Concord II | |
| Model | Xperia U (ST25i) | Concord II |
| Other model names | Sony Xperia U ST25, Sony Kumquat | T-Mobile ZTE Concord 2 Z730, ZTE Z730 |
| Country or region available |  (Global, International) |  USA |
| Brand | Sony | T-Mobile |
| Release date | 5/7/2012, Announced: 2/1/2012 | 5/1/2014 |
| Depth | 12 millimeters (0.47 inches) | 11 millimeters (0.43 inches) |
| Size (width x height) | 54 x 112 millimeters (2.13 x 4.41 in) | 65 x 126 millimeters (2.56 x 4.96 in) |
| Weight | 110 grams (3.85 ounces) | 125 grams (4.38 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) | T-Mobile Concord II | |
| Display type | TFT LED-Backlit LCD | TFT LCD |
| Screen size | 3.5" inches | 4" inches |
| Screen-to-body ratio | ~55.8% (screen-to-body ratio) | ~55.6% (screen-to-body ratio) |
| Display resolution | 480x854 pixels (16:9) | 480x800 pixels |
| Touchscreen | Capacitive Multitouch 4-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 280 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Gorilla Glass 2 |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| System version | Android 2.3.7 Gingerbread | Android 4.3 Jelly Bean |
| Firmware update | Android 4.0.4 Ice Cream Sandwich ICS | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| Chipset | 32bit: ST-Ericsson NovaThor U8500 (45nm) | 32bit: Qualcomm Snapdragon 200 (MSM8210) (28nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Dual-core, 1 processor: 2x 1.2GHz ARM Cortex-A7 (Dual-core) |
| GPU graphical controller | ARM Mali-400 MP1 | Qualcomm Adreno 302 (400MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| RAM memory | 512MB LPDDR2 | 1GB LPDDR2 |
| Internal storage | 8GB (4GB available) | 4GB (1.49GB available) eMMC 4.5 |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 14.4/5.76 Mbps | 21/5.76 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 |
| 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, HSPA+ |
| 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) | T-Mobile Concord II | |
| Back camera (main camera) | 5 megapixels | 5 megapixels |
| Main camera resolution | 2592x1944 pixels | 2592x1944 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | HD (1280x720) |
| 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 (ST25i) | T-Mobile Concord II | |
| Front camera (secondary) | 0.3 megapixels | Not supported |
| Front camera resolution | 640x480 pixels | Not supported |
| 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 (ST25i) | T-Mobile Concord II | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 1 microphone |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263, H.264, WMV | MP4, H.264, H.263, 3GP |
| Audio formats | MP3, eAAC+, WMA, WAV | MP3, WAV, WMA, AAC+ |
🔌 Connectivity | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| 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 | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| Battery type | Li-Ion: lithium-ion (Removable) BA600 | LiPo: li-ion polymer (Removable) |
| Battery capacity | 1320 mAh | 1820 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 5.6 hours | 6 hours |
| Standby | 472 hours (19.7 days) | 250 hours (10.4 days) |
➕ Other features | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, 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 | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, Flash player | HTML, XHTML |
| 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 • LED notification • HAC M3/T3 • Java framework |
☢️ Radiation rate | ||
| Sony Xperia U (ST25i) | T-Mobile Concord II | |
| 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 |