Apple Watch (42mm) vs LG K40 (X420HM)
Side by side comparison between Apple Watch vs LG K40 devices, differences, pros, cons and full specifications. What's the better?
,
1.54"
AMOLED
AMOLED
312x390
N/A
512MB
RAM
RAM
Single-core
205
mAh
mAh
(Non 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 device? LG K40 (X420HM)
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!
9 Advantages 
23 Advantages | 6 Common items in both devices |
| 16 million |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Li-Ion: lithium-ion (Non removable) |
| + 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 | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Model | Watch (42mm) | K40 (X420HM) |
| Other model names | Apple Watch 1st gen (2015) A1554 Stainless Steel | LG K40 LMX420HM, LM-X420HM, LG-LMX420HM |
| Country or region available |  (Global, International) |   (Latin America), Colombia |
| Brand | Apple | LG |
| Release date | 4/24/2015 | 3/31/2019 |
| Depth | 10.5 millimeters (0.41 inches) | 8.3 millimeters (0.33 inches) |
| Size (width x height) | 35.9 x 42 millimeters (1.41 x 1.65 in) | 71.9 x 153 millimeters (2.83 x 6.02 in) |
| Weight | 101 grams (3.54 ounces) | 150 grams (5.25 ounces) |
| Build, materials | Stainless steel body, glass front, ceramic back | Plastic body, glass front |
| Protection against water and others | IPX7 certified: water resistant up to 1 meter and 30min | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Display type | AMOLED | TFT IPS LCD |
| Screen size | 1.54" inches | 5.7" inches |
| Screen-to-body ratio | ~49.5% (screen-to-body ratio) | ~76.2% (screen-to-body ratio) |
| Display resolution | 312x390 pixels | 720x1440 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 324 PPI | 282 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Sapphire Glass | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| System version | WatchOS 1.0 | Android 8.1 Oreo |
| Firmware update | WatchOS 4.0 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Chipset | 32bit: Apple S1 (28nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Single-core, 1 processor: 1x 520MHz ARM Cortex-A7 (Single-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | PowerVR SGX543 | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| RAM memory | 512MB LPDDR | 2GB LPDDR3 |
| Internal storage | 8GB (6GB available) | 32GB (20GB available) eMMC 5.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | Not supported | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | feature not registered | 300/50 Mbps |
| Network technology | feature not registered | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Not supported | Quad-Band 850/900/1800/1900 |
| Primary 2G network | Not supported | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat6 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 28, 66) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, 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 | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Back camera (main camera) | Not supported | 16 megapixels |
| Main camera resolution | Not supported | 4608x3456 pixels |
| Video recording (primary) | Not supported | Full HD (1920x1080) 30 fps |
| Flash | Not supported | 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 | Not supported | PDAF: phase detection autofocus |
| Touch focus | Not supported | Supported |
| Image stabilization | Not supported | EIS: Digital stabilization |
| Zoom | Not supported | Only digital zoom |
| Face/smile detection | Not supported | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Front camera (secondary) | Not supported | 8 megapixels |
| Front camera resolution | Not supported | 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 | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| USB | Not supported | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | Not supported | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + 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 | Not supported | Not supported |
| GPS | Not supported | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Sensors | Accelerometer Ambient light sensor Gyroscope Heart rate Pedometer | Accelerometer Ambient light sensor Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 205 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Magnetic charging (dock) | feature not registered |
| Talk time autonomy | 3 hours | 8 hours |
| Standby | 18 hours | 100 hours (4.2 days) |
➕ Other features | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| Call control | Not supported | Voice dialing, Voice recorder |
| Messaging | SMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | feature not registered | Polyphonic and customized |
| Web browser | Not supported | HTML, XHTML, HTML5 |
| Antenna | Not supported | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Watch colors: Silver, Space gray • Watch bands: White, Black, Blue, Pink, Brown, Gray, Steel • Band material: Leather, Stainless steel, Fluoroelastomer plastic • iOS 8.2 or higher compatible • Digital Crown • MagSafe charging | • Colors: Black, Moroccan Blue, Platinum Gray • 18:9 ratio FullVision display • LED notification • DTS-X Surround sound |
☢️ Radiation rate | ||
| Apple Watch (42mm) | LG K40 (X420HM) | |
| 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 |