Sony Xperia U (ST25i) vs Blu R2 (3G)
Side by side comparison between Sony Xperia U vs Blu R2 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
5.2"
IPS
IPS
720x1280
8
MP
MP
8mp
1GB
RAM
RAM
Quad-core
3000
mAh
mAh
(Non removable)
What's the better phone? Blu R2 (3G)
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 | 19 Common items in both devices |
| 8GB (4GB available) |
| 16 million |
| Only digital zoom |
| Autofocus |
| EIS: Digital stabilization |
| Capacitive |
| Multitouch |
| +12 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) | Blu R2 (3G) | |
| Model | Xperia U (ST25i) | Blu R2 (3G) |
| Other model names | Sony Xperia U ST25, Sony Kumquat | Blu R2 1GB/8GB, Blu R2 R010P, Blu R010P |
| Country or region available |  (Global, International) |    (Latin America), Canada, USA |
| Brand | Sony | Blu |
| Release date | 5/7/2012, Announced: 2/1/2012 | 7/1/2017 |
| Depth | 12 millimeters (0.47 inches) | 9.6 millimeters (0.38 inches) |
| Size (width x height) | 54 x 112 millimeters (2.13 x 4.41 in) | 74.3 x 150.3 millimeters (2.93 x 5.92 in) |
| Weight | 110 grams (3.85 ounces) | 156 grams (5.46 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| Display type | TFT LED-Backlit LCD | TFT IPS LCD |
| Screen size | 3.5" inches | 5.2" inches |
| Screen-to-body ratio | ~55.8% (screen-to-body ratio) | ~66.8% (screen-to-body ratio) |
| Display resolution | 480x854 pixels (16:9) | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch 4-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 280 PPI | 282 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| System version | Android 2.3.7 Gingerbread | Android 7.0 Nougat |
| 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) | Blu R2 (3G) | |
| Chipset | 32bit: ST-Ericsson NovaThor U8500 (45nm) | 32bit: MediaTek MT6580 (28nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core) | Quad-core, 1 processor: 4x 1.3GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | ARM Mali-400 MP1 | ARM Mali-400 MP1 500Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| RAM memory | 512MB LPDDR2 | 1GB LPDDR3 |
| Internal storage | 8GB (4GB available) | 8GB (4GB available) |
| External storage | Not supported | Until 64GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| 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) |
| 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 850/900/1700/1900/2100 |
| 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, HSPA+ |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| Back camera (main camera) | 5 megapixels | 8 megapixels |
| Main camera resolution | 2592x1944 pixels | 3264x2448 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | Dual-LED on both cameras |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| 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) | Blu R2 (3G) | |
| 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 | Dual-LED |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| 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) | Blu R2 (3G) | |
| Loudspeaker | Supported | Supported |
| 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.265, H.264, H.263 |
| Audio formats | MP3, eAAC+, WMA, WAV | MP3, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| 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) |
| 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) | Blu R2 (3G) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| Battery type | Li-Ion: lithium-ion (Removable) BA600 | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1320 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 5.6 hours | 16 hours |
| Standby | 472 hours (19.7 days) | 625 hours (26 days) |
➕ Other features | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| 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, 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, Silver, Rose gold, Gold • Aluminum body • 2.5D curved glass screen • Screen protector included • Silicon Case included • WiFi hotspot |
☢️ Radiation rate | ||
| Sony Xperia U (ST25i) | Blu R2 (3G) | |
| 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 |