LG Optimus Black (P970) vs Blu Dash 4.0 (D271 Dual)
Side by side comparison between LG Optimus Black vs Blu Dash 4.0 phones, differences, pros, cons and full specifications. What's the better?
,
4"
IPS
IPS
480x800
5
MP
MP
2mp
512MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
vs
4"
TFT
TFT
480x800
5
MP
MP
0.3mp
512MB
RAM
RAM
Dual-core
1500
mAh
mAh
(Removable)
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!
8 Advantages 
9 Advantages | 28 Common items in both devices |
| 512MB LPDDR |
| Plastic body, glass front |
| 60Hz |
| 16 million |
| 480x800 pixels |
| 233 PPI |
| 4" |
| +21 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 | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Change model | ||
| Model | Optimus Black (P970) | Dash 4.0 (D271 Dual) |
| Other model names | LG Optimus P970H, LG Ignite, LG Schwarz | Blu Dash 4.0 Dual-SIM D271a, D271i |
| Country or region available |    (Global, International), Germany, USA | (Global, International) |
| Brand | LG | Blu |
| Release date | 5/9/2011 | 9/1/2013, Announced: 1/1/2013 |
| Depth | 9.2 millimeters (0.36 inches) | 11.8 millimeters (0.46 inches) |
| Size (width x height) | 64 x 122 millimeters (2.52 x 4.8 in) | 63 x 124 millimeters (2.48 x 4.88 in) |
| Weight | 109 grams (3.82 ounces) | 134 grams (4.69 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Display type | TFT NOVA IPS | TFT LCD |
| Screen size | 4" inches | 4" inches |
| Screen-to-body ratio | ~58.3% (screen-to-body ratio) | ~58.3% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| System version | Android 2.2.1 Froyo | Android 4.2.1 Jelly Bean |
| Firmware update | Android 4.0.4 Ice Cream Sandwich ICS | feature not registered |
| User Interface | Optimus 2.0 Gesture UI | feature not registered |
⚙️ Processor | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Chipset | 32bit: Texas Instruments OMAP 3630 (45nm) | 32bit: Qualcomm Snapdragon S4 Play (MSM8225) (45nm) |
| CPU | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A5 (Dual-core) |
| GPU graphical controller | PowerVR SGX530 MP1 | Qualcomm Adreno 203 (320MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| RAM memory | 512MB LPDDR | 512MB LPDDR |
| Internal storage | 2GB (1GB available) | 4GB (1.88GB available) eMMC 4.41 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 64GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| 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) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 7.2/5.76 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 | D271a: UMTS 850/1900 D271i: UMTS 850/2100 |
| 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 | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Back camera (main camera) | 5 megapixels | 5 megapixels |
| Main camera resolution | 2592x1944 pixels | 2592x1944 pixels |
| Video recording (primary) | HD (1280x720) 24 fps | HD (1280x720) 30 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 | Autofocus | Not supported |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Front camera (secondary) | 2 megapixels | 0.3 megapixels |
| Front camera resolution | 1600x1200 pixels | 640x480 pixels |
| Video recording (secondary) | Not supported | VGA (640x480) |
| 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 | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 1 microphone | 1 microphone |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, DivX, Xvid, H.264, H.263, WMV | MP4, DivX, XviD, H.264, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, AAC |
🔌 Connectivity | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| USB | MicroUSB 2.0 | 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) WiFi hotspot | 802.11 b/g/n [wifi4] (2.4GHz) 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 | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Battery type | Li-Ion: lithium-ion (Removable) BL-44JN | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1500 mAh | 1500 mAh |
| Charger, watts | Wired charging | 5W Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 6 hours | 8 hours |
| Standby | 350 hours (14.6 days) | 340 hours (14.2 days) |
➕ Other features | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, Pink, Silver, White, Brown Java framework | • Colors: Black, White Java framework |
☢️ Radiation rate | ||
| LG Optimus Black (P970) | Blu Dash 4.0 (D271 Dual) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 1.27W/kg (head), 1.43W/kg (body) | feature not registered |