Blu Dash 4.0 (D270 Dual) vs LG X400 (K121K)
Side by side comparison between Blu Dash 4.0 vs LG X400 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
5.3"
IPS
IPS
720x1280
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
2800
mAh
mAh
(Removable)
What's the better phone? LG X400 (K121K)
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!
2 Advantages 
24 Advantages | 20 Common items in both devices |
| Plastic body, glass front |
| 16 million |
| LED flash |
| Only digital zoom |
| 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 | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Model | Dash 4.0 (D270 Dual) | X400 (K121K) |
| Other model names | Blu Dash 4.0 Dual-SIM D270a, D270i | KT LG X400, LGM-K121K, LGMK121K (Korea Telecom) |
| Country or region available |  (Global, International) |  South Korea |
| Brand | Blu | LG |
| Release date | 1/1/2013 | 2/1/2017 |
| Depth | 11.8 millimeters (0.46 inches) | 8 millimeters (0.31 inches) |
| Size (width x height) | 63 x 124 millimeters (2.48 x 4.88 in) | 75.29 x 148.7 millimeters (2.96 x 5.85 in) |
| Weight | 128 grams (4.48 ounces) | 142 grams (4.97 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 4" inches | 5.3" inches |
| Screen-to-body ratio | ~58.3% (screen-to-body ratio) | ~69.2% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 277 PPI |
| Colors | 16 million | 16 million |
| 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 (D270 Dual) | LG X400 (K121K) | |
| System version | Android 4.0.4 Ice Cream Sandwich ICS | Android 7.0 Nougat |
| Firmware update | feature not registered | Android 8.0 Oreo |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Chipset | 32bit: Qualcomm Snapdragon S4 Play (MSM8225) (45nm) | 64bit: MediaTek MT6750 (28nm) |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A5 (Dual-core) | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 203 (320MHz) | ARM Mali-T860 MP2 520Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| RAM memory | 512MB LPDDR | 2GB LPDDR3 |
| Internal storage | 4GB (1.88GB available) eMMC 4.41 | 32GB (22GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 7.2/5.76 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Tri-Band 900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 900/1800/1900 |
| Primary 3G network | D270a: UMTS 850/1900 D270i: UMTS 850/2100 | UMTS 2100 |
| Primary 4G network | Not supported | LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS | Not supported |
📷 Camera | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Back camera (main camera) | 5 megapixels | 13 megapixels |
| Main camera resolution | 2592x1944 pixels | 4160x3120 pixels |
| Video recording (primary) | VGA (640x480) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | Not supported | 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 | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Front camera (secondary) | 0.3 megapixels | 5 megapixels |
| Front camera resolution | 640x480 pixels | 2560x1920 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.4 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/5" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 1 microphone | 2 microphones or more |
| Radio | FM | FM (RDS) |
| TV | Not supported | Digital TV |
| Video formats | MP4, DivX, XviD, H.264, WMV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, AAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 3.0 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1500 mAh | 2800 mAh |
| Charger, watts | 5W Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 8 hours | 9 hours |
| Standby | 340 hours (14.2 days) | 390 hours (16.3 days) |
➕ Other features | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (Swype), 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, Flash player | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White • Java framework | • Colors: Black, Gold • 2.5D Arc Glass screen • LG UX 5.0 • Wide-angle 120° front camera • KnockOn, Knock Code • DMB-TV (Korea) |
☢️ Radiation rate | ||
| Blu Dash 4.0 (D270 Dual) | LG X400 (K121K) | |
| 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 |