Samsung Rex 70 (S3802) vs Blu Studio Energy (D810U)
Side by side comparison between Samsung Rex 70 vs Blu Studio Energy phones, differences, pros, cons and full specifications. What's the better?
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What's the better phone? Blu Studio Energy (D810U)
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!
1 Advantage 
24 Advantages | 12 Common items in both devices |
| Only digital zoom |
| Capacitive |
| Multitouch |
| Proximity sensor |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| Vibrating alert |
| +5 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 | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Change model | ||
| Model | Rex 70 (S3802) | Studio Energy (D810U) |
| Other model names | Samsung Rex 70 Duos S3802 for India market | BLU Studio Energy Dual Sim, BLU D810U |
| Country or region available |  India |  USA |
| Brand | Samsung | Blu |
| Release date | 3/1/2013 | 1/1/2015 |
| Depth | 12 millimeters (0.47 inches) | 10.4 millimeters (0.41 inches) |
| Size (width x height) | 57.2 x 104.9 millimeters (2.25 x 4.13 in) | 71.5 x 144.5 millimeters (2.81 x 5.69 in) |
| Weight | 89 grams (3.12 ounces) | 180 grams (6.3 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 3" inches | 5" inches |
| Screen-to-body ratio | ~46.4% (screen-to-body ratio) | ~66.7% (screen-to-body ratio) |
| Display resolution | 240x320 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 133 PPI | 294 PPI |
| Colors | 65 thousand | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| System version | Proprietary OS | Android 4.4.2 KitKat |
| Firmware update | feature not registered | Android 5.0.2 Lollipop |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Chipset | 32bit | 32bit: MediaTek MT6582 |
| CPU | Single-core, 1 processor: Single-core XMM 2250m (Single-core) | Quad-core, 1 processor: 4x 1.3GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | feature not registered | ARM Mali-400 MP2 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| RAM memory | feature not registered | 1GB LPDDR2 |
| Internal storage | 10MB | 8GB (4GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 64GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 0.236 Mbps | 21/5.76 Mbps |
| Network technology | 2G | 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 | Not supported | UMTS 850/1700/1900 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS | GPRS, EDGE |
📷 Camera | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Back camera (main camera) | 2 megapixels | 8 megapixels |
| Main camera resolution | 1600x1200 pixels | 3264x2448 pixels |
| Video recording (primary) | Supported | Full HD (1920x1080) 30 fps |
| Flash | Not supported | 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 | Not supported | Autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Face detection, Smile detection |
| BSI sensor | feature not registered | Not supported |
| HDR | feature not registered | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Front camera (secondary) | Not supported | 2 megapixels |
| Front camera resolution | Not supported | 1600x1200 pixels |
| Video recording (secondary) | Not supported | HD (1280x720) |
| 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 | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | Not supported |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263 | MP4, H.264, H.263, DivX, XviD, WMV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, AAC+ |
🔌 Connectivity | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 3.0 | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | feature not registered | Not supported |
| GPS | Not supported | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Sensors | Proximity sensor | Accelerometer Ambient light sensor Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1000 mAh | 5000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 13 hours | 33 hours (1.4 days) |
| Standby | 490 hours (20.4 days) | 1080 hours (45 days) |
➕ Other features | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| Call control | Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS, MMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | feature not registered | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: White, Gray, Blue • Samsung TouchWiz UI • ChatON • Opera browser • Facebook, Twitter, YouTube • Java framework | • Colors: Black, White, Gold • Screen protector included • BLU Infinite View technology |
☢️ Radiation rate | ||
| Samsung Rex 70 (S3802) | Blu Studio Energy (D810U) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |