T-Mobile myTouch 4G vs LG K40 (X420EM)
Side by side comparison between T-Mobile myTouch 4G vs LG K40 phones, differences, pros, cons and full specifications. What's the better?
,
3.8"
SLCD
SLCD
480x800
5
MP
MP
0.3mp
768MB
RAM
RAM
Single-core
1400
mAh
mAh
(Removable)
vs
5.7"
IPS
IPS
720x1440
16
MP
MP
8mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
What's the better phone? LG K40 (X420EM)
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 | 14 Common items in both devices |
| 16 million |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| +7 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 | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Change model | ||
| Model | myTouch 4G | K40 (X420EM) |
| Other model names | T-Mobile myTouch HD, T-Mobile myTouch 4G, HTC Glacier | LG K40 LMX420EM NFC Single-sim, LM-X420EM, LG-LMX420EM |
| Country or region available |  USA |  (Europe) |
| Brand | T-Mobile | LG |
| Release date | 11/4/2010 | 3/31/2019 |
| Depth | 10.2 millimeters (0.4 inches) | 8.3 millimeters (0.33 inches) |
| Size (width x height) | 61 x 121.9 millimeters (2.4 x 4.8 in) | 71.9 x 153 millimeters (2.83 x 6.02 in) |
| Weight | 153 grams (5.36 ounces) | 145 grams (5.08 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Display type | TFT Super LCD | TFT IPS LCD |
| Screen size | 3.8" inches | 5.7" inches |
| Screen-to-body ratio | ~55.3% (screen-to-body ratio) | ~76.2% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 720x1440 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 246 PPI | 282 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| System version | Android 2.2 Froyo | Android 8.1 Oreo |
| Firmware update | Android 2.3.4 Gingerbread | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Chipset | 32bit: Qualcomm Snapdragon S2 MSM8255 | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Single-core, 1 processor: 1x 1GHz Scorpion (Single-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 205 | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| RAM memory | 768MB LPDDR | 2GB LPDDR3 |
| Internal storage | 4GB (1.2GB available) | 32GB (20GB available) eMMC 5.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 14.4/5.76 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 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 900/1700/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | Not supported | LTE Cat6 (Bands 1, 3, 5, 7, 8, 20) TD-LTE (Bands 38) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Back camera (main camera) | 5 megapixels | 16 megapixels |
| Main camera resolution | 2560x1920 pixels | 4608x3456 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash 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 | 1/3" inches |
| Pixel size | feature not registered | 1µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | feature not registered | Supported |
| Image stabilization | feature not registered | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection | Face detection, Smile detection |
| BSI sensor | feature not registered | Not supported |
| HDR | feature not registered | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Front camera (secondary) | 0.3 megapixels | 8 megapixels |
| Front camera resolution | 640x480 pixels | 3264x2448 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | 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 | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| 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 | 2.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | feature not registered | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 1400 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 10 hours | 8 hours |
| Standby | 432 hours (18 days) | 100 hours (4.2 days) |
➕ Other features | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| 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, Flash player | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • 8GB microSD included • HTC Sense UI • Optical trackpad • DLNA • WiFi hotspot Java framework | • Colors: Black, Moroccan Blue, Platinum Gray • 18:9 ratio FullVision display • LED notification • DTS-X Surround sound |
☢️ Radiation rate | ||
| T-Mobile myTouch 4G | LG K40 (X420EM) | |
| 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 |