Sony Xperia U (ST25i) vs Quantum You 2
Side by side comparison between Sony Xperia U vs Quantum You 2 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
5.5"
IPS
IPS
720x1440
13
MP
MP
8mp
1GB
RAM
RAM
Quad-core
3000
mAh
mAh
(Removable)
What's the better phone? Quantum You 2
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!
5 Advantages 
22 Advantages | 21 Common items in both devices |
| Plastic body, glass front |
| 60Hz |
| 16 million |
| Only digital zoom |
| Autofocus |
| EIS: Digital stabilization |
| HD (1280x720) |
| +14 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) | Quantum You 2 | |
| Model | Xperia U (ST25i) | You 2 |
| Other model names | Sony Xperia U ST25, Sony Kumquat | Positivo Quantum You 2 QE83 (Android Go) |
| Country or region available |  (Global, International) |  Brazil |
| Brand | Sony | Quantum |
| Release date | 5/7/2012, Announced: 2/1/2012 | 7/1/2018 |
| Depth | 12 millimeters (0.47 inches) | 10 millimeters (0.39 inches) |
| Size (width x height) | 54 x 112 millimeters (2.13 x 4.41 in) | 72 x 148 millimeters (2.83 x 5.83 in) |
| Weight | 110 grams (3.85 ounces) | 150 grams (5.25 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) | Quantum You 2 | |
| Display type | TFT LED-Backlit LCD | TFT IPS LCD |
| Screen size | 3.5" inches | 5.5" inches |
| Screen-to-body ratio | ~55.8% (screen-to-body ratio) | ~73.3% (screen-to-body ratio) |
| Display resolution | 480x854 pixels (16:9) | 720x1440 pixels (18:9) |
| Touchscreen | Capacitive Multitouch 4-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 280 PPI | 293 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | 2.5D glass |
🤖 Operating System | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| System version | Android 2.3.7 Gingerbread | Android 8.1 Oreo |
| Firmware update | Android 4.0.4 Ice Cream Sandwich ICS | feature not registered |
| User Interface | feature not registered | Android Go Edition |
⚙️ Processor | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| Chipset | 32bit: ST-Ericsson NovaThor U8500 (45nm) | 64bit: MediaTek MT6737 (28nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Quad-core, 1 processor: 4x 1.3GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-400 MP1 | ARM Mali-T720 MP1 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| RAM memory | 512MB LPDDR2 | 1GB LPDDR3 |
| Internal storage | 8GB (4GB available) | 16GB (11GB available) eMMC 5.0 |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF) |
| Maximum Download / Upload | 14.4/5.76 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G |
| 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 | LTE Cat4 (1, 3, 4, 7, 28) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/1900/2100 |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
📷 Camera | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| Back camera (main camera) | 5 megapixels | 13 megapixels |
| Main camera resolution | 2592x1944 pixels | 4128x3096 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | HD (1280x720) 30 fps |
| Flash | LED flash | LED flash on both cameras |
| 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 | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| Front camera (secondary) | 0.3 megapixels | 8 megapixels |
| Front camera resolution | 640x480 pixels | 3264x2448 pixels |
| Video recording (secondary) | VGA (640x480) | HD (1280x720) |
| Front flash | Not supported | LED |
| 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) | Quantum You 2 | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263, H.264, WMV | MP4, H.264, H.263, XviD |
| Audio formats | MP3, eAAC+, WMA, WAV | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| 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 a/b/g/n [wifi4] (2.4GHz, 5GHz) 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) | Quantum You 2 | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| Battery type | Li-Ion: lithium-ion (Removable) BA600 | LiPo: li-ion polymer (Removable) |
| Battery capacity | 1320 mAh | 3000 mAh |
| Charger, watts | Wired charging | 5W Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 5.6 hours | feature not registered |
| Standby | 472 hours (19.7 days) | feature not registered |
➕ Other features | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| 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 | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, Flash player | HTML, XHTML, HTML5 |
| 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, Red, Gold • Screen protector included |
☢️ Radiation rate | ||
| Sony Xperia U (ST25i) | Quantum You 2 | |
| 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 |