Quantum Sky vs Sony Xperia U (ST25i)
Side by side comparison between Quantum Sky vs Sony Xperia U phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
13
MP
MP
16mp
4GB
RAM
RAM
Octa-core
4010
mAh
mAh
(Non 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? Quantum Sky
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!
26 Advantages 
4 Advantages | 20 Common items in both devices |
| 60Hz |
| 16 million |
| Only digital zoom |
| Autofocus |
| EIS: Digital stabilization |
| Capacitive |
| Multitouch |
| +13 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 | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Change model | ||
| Model | Quantum Sky | Xperia U (ST25i) |
| Other model names | Positivo Quantum Sky 4G 64GB, Quantum Sky QX1 | Sony Xperia U ST25, Sony Kumquat |
| Country or region available |  Brazil |  (Global, International) |
| Brand | Quantum | Sony |
| Release date | 8/29/2017 | 5/7/2012, Announced: 2/1/2012 |
| Depth | 8.3 millimeters (0.33 inches) | 12 millimeters (0.47 inches) |
| Size (width x height) | 76.5 x 154.5 millimeters (3.01 x 6.08 in) | 54 x 112 millimeters (2.13 x 4.41 in) |
| Weight | 182 grams (6.37 ounces) | 110 grams (3.85 ounces) |
| Build, materials | Aluminum body, glass front, aluminum back with plastic ends | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Display type | TFT IPS LCD | TFT LED-Backlit LCD |
| Screen size | 5.5" inches | 3.5" inches |
| Screen-to-body ratio | ~70.6% (screen-to-body ratio) | ~55.8% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 480x854 pixels (16:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 4-points |
| Pixel density (dot pitch) | 401 PPI | 280 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Scratch-resistant glass |
| Refresh rate | 60Hz | 60Hz |
| Display features | 2.5D glass | Not supported |
🤖 Operating System | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| System version | Android 7.0 Nougat | Android 2.3.7 Gingerbread |
| Firmware update | feature not registered | Android 4.0.4 Ice Cream Sandwich ICS |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Chipset | 64bit: MediaTek Helio P10 (MT6755) (28nm) | 32bit: ST-Ericsson NovaThor U8500 (45nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.2GHz ARM Cortex-A53 (Quad-core) | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) |
| GPU graphical controller | ARM Mali-T860 MP2 (700MHz) | ARM Mali-400 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| RAM memory | 4GB LPDDR3 | 512MB LPDDR2 |
| Internal storage | 64GB (53GB available) eMMC 5.1 | 8GB (4GB available) |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Not supported |
📶 Mobile networks | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 300/50 Mbps | 14.4/5.76 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Tri-Band 850/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/1900/2100 | UMTS 900/2100 |
| Primary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 28) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA |
| Secondary 2G network | GSM 850/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Back camera (main camera) | 13 megapixels | 5 megapixels |
| Main camera resolution | 4128x3096 pixels | 2592x1944 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | HD (1280x720) 30 fps |
| Flash | LED flash on both cameras | LED flash |
| Focal aperture | f/2.0 (aperture) | 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 | HDR photo on both cameras | Not supported |
| Camera extras | Sony IMX258 (back) Samsung S5K3P3 (front) | feature not registered |
📸 Front camera | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Front camera (secondary) | 16 megapixels | 0.3 megapixels |
| Front camera resolution | 4608x3456 pixels | 640x480 pixels |
| Video recording (secondary) | HD (1280x720) | VGA (640x480) |
| Front flash | LED | Not supported |
| Focal aperture | f/2.0 (aperture) | 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 | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263 | MP4, H.263, H.264, WMV |
| Audio formats | MP3, WAV, OGG, eAAC+, FLAC | MP3, eAAC+, WMA, WAV |
🔌 Connectivity | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| 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 | 4.0 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Pedometer Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) BA600 |
| Battery capacity | 4010 mAh | 1320 mAh |
| Charger, watts | 10W Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 28 hours (1.2 days) | 5.6 hours |
| Standby | feature not registered | 472 hours (19.7 days) |
➕ Other features | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| Call control | Voice dialing, Voice recorder | 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, HTML5 | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Silver, Gold • Screen protector included • Silicon case included | • 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 | ||
| Quantum Sky | Sony Xperia U (ST25i) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.09W/kg (head), 0.93W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 1.62W/kg (head) |