Blu Dash 4.0 (D271 Dual) vs Positivo P28
Side by side comparison between Blu Dash 4.0 vs Positivo P28 phones, differences, pros, cons and full specifications. What's the better?
,
4"
TFT
TFT
480x800
5
MP
MP
0.3mp
512MB
RAM
RAM
Dual-core
1500
mAh
mAh
(Removable)
vs
What's the better phone? Blu Dash 4.0 (D271 Dual)
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!
25 Advantages 
1 Advantage | 9 Common items in both devices |
| TFT LCD |
| LED flash |
| Only digital zoom |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| 2 slots (Dual-SIM) |
| 3.5mm jack |
| +2 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 | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Model | Dash 4.0 (D271 Dual) | Positivo P28 |
| Other model names | Blu Dash 4.0 Dual-SIM D271a, D271i | Positivo P28 Dual-Chip |
| Country or region available |  (Global, International) |  Brazil |
| Brand | Blu | Positivo |
| Release date | 9/1/2013, Announced: 1/1/2013 | 2/29/2016 |
| Depth | 11.8 millimeters (0.46 inches) | 12 millimeters (0.47 inches) |
| Size (width x height) | 63 x 124 millimeters (2.48 x 4.88 in) | 56.5 x 128 millimeters (2.22 x 5.04 in) |
| Weight | 134 grams (4.69 ounces) | 90 grams (3.15 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4" inches | 2.8" inches |
| Screen-to-body ratio | ~58.3% (screen-to-body ratio) | ~33.6% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 240x320 pixels |
| Touchscreen | Capacitive Multitouch | Not supported |
| Pixel density (dot pitch) | 233 PPI | 143 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| System version | Android 4.2.1 Jelly Bean | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Chipset | 32bit: Qualcomm Snapdragon S4 Play (MSM8225) (45nm) | 32bit |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A5 (Dual-core) | Single-core, 1 processor: 1x 260MHz |
| GPU graphical controller | Qualcomm Adreno 203 (320MHz) | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| RAM memory | 512MB LPDDR | 32MB |
| Internal storage | 4GB (1.88GB available) eMMC 4.41 | 24MB |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Until 8GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| 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) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 21/5.76 Mbps | 0.048 Mbps |
| Network technology | 2G, 3G | 2G |
| 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 | D271a: UMTS 850/1900 D271i: UMTS 850/2100 | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS |
| 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, EDGE | GPRS |
📷 Camera | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Back camera (main camera) | 5 megapixels | 0.3 megapixels |
| Main camera resolution | 2592x1944 pixels | 640x480 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | QVGA (320x240) 15 fps |
| 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 | Not supported | Not supported |
| Touch focus | Supported | Not supported |
| Image stabilization | EIS: Digital stabilization | Not supported |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| 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 | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 1 microphone | Not supported |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, DivX, XviD, H.264, WMV | MP4, H.263 |
| Audio formats | MP3, WAV, WMA, AAC | MP3, WAV |
🔌 Connectivity | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| USB | MicroUSB 2.0 | Mini-USB 2.0 (Mini-B) |
| 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 hotspot | Not supported |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | Not supported |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Not supported |
| Vibrating alert | Supported | Not supported |
🔋 Battery | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1500 mAh | 850 mAh |
| Charger, watts | 5W Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 8 hours | feature not registered |
| Standby | 340 hours (14.2 days) | feature not registered |
➕ Other features | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (Swype), MMS, E-mail, Push mail | SMS, MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic |
| Web browser | HTML, XHTML, HTML5, Flash player | HTML, XHTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White Java framework | • Colors: Black |
☢️ Radiation rate | ||
| Blu Dash 4.0 (D271 Dual) | Positivo P28 | |
| 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 |