Side-by-side technical data
LG K40 vs LG W31
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Your pick: LG K40, ahead on Design & display, Performance & hardware and Connectivity. Unless Camera or Battery & charging decides it for you.
| Category | K40 | W31 |
|---|---|---|
| Design & display | 5.3 | 5.0 |
| Performance & hardware | 2.9 | 2.5 |
| Camera | 4.6 | 5.6 |
| Connectivity | 4.6 | 3.7 |
| Battery & charging | 2.2 | 3.5 |
Which one is for you?
LG K40, if you care about…
- Wi-Fi Standards
- Wi-Fi 802.11a/b/g/n/ac
- against Wi-Fi 802.11 b/g/n
- Bluetooth Version
- Bluetooth 5.0
- against Bluetooth 4.2
- RAM Type
- DDR4
- against LPDDR3
- Display Pixel Density
- 282 ppi
- against 269 ppi
LG W31, if you care about…
- Battery Capacity
- 4,000 mAh
- against 3,000 mAh
- RAM Capacity
- 4 GB
- against 3 GB
- Maximum Storage Capacity
- 128 GB
- against 32 GB
- Usable Surface
- 80.9 %
- against 76.2 %
Specification comparison
Performance
| Specification | K40 | W31 |
|---|---|---|
| Processor Model | MediaTek Helio P22 | MediaTek Helio P22 |
| Processor Process Size | 12 nm | 12 nm |
| Graphics GPU | PowerVR GE8322 | PowerVR GE8320 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 2 GHz | 2 GHz |
| Maximum Storage Capacity | 32 GB | 128 GB Best value |
| AnTuTu Score | — | 93,500 |
| Geekbench 6 Single-Core | 233 | 233 |
| Geekbench 6 Multi-Core | 723 | 723 |
| CPU Description | Octa-core, 2.0 GHz Cortex-A53 | 4x Cortex-A53 at 2.0 GHz + 4x Cortex-A53 at 1.5 GHz |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 3 GB | 4 GB Best value |
| RAM Type | DDR4 Best value | LPDDR3 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | v8 |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | 1.9531 TB | — |
Design
| Specification | K40 | W31 |
|---|---|---|
| Body Colors | Black, Blue, Grey | Blue |
| Body Thickness | 8.3 mm Best value | 8.4 mm |
| Body Width | 71.9 mm | 76.3 mm |
| Body Height | 153 mm | 166.2 mm |
| Weight | 144 g Best value | 173.6 g |
| Usable Surface | 76.2 % | 80.9 % Best value |
| Body Materials | Glass, Plastic | Plastic |
| Resistance Features | MIL-STD-810G | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | — | — |
Battery
| Specification | K40 | W31 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 3,000 mAh | 4,000 mAh Best value |
| Battery Type | Li-Ion | Li-Polymer |
| Fast Charge Power | — | 10 W |
| Battery Features | Battery Level Indicator, Rechargeable, Non-Removable | Non-Removable, Rechargeable, Battery Level Indicator |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | — | — |
| Standby time | — | — |
| Music playback time | — | — |
| Reverse wireless charging power | — | — |
Display
| Specification | K40 | W31 |
|---|---|---|
| Display Aspect Ratio | 18:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | — | — |
| Display Diagonal | 5.7″ | 6.52″ Best value |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,440 px | 1,600 px Best value |
| Display Pixel Density | 282 ppi Best value | 269 ppi |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | Always-On Display, Touchscreen | IPS LCD, Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless, Touchscreen |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | — | — |
Sensors
| Specification | K40 | W31 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Rear |
Sensor
| Specification | K40 | W31 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Proximity Sensor, Light Sensor |
Software
| Specification | K40 | W31 |
|---|---|---|
| Operating System | Android 8.1 | Android 10 |
| OS Family | Android | Android |
| OS Version | 8 | 10 Best value |
| OS Update Support | — | — |
| Direct OS Updates | No | No |
| Google Services | — | Yes |
| Web browser | — | — |
| Java (J2ME) | — | — |
| Widevine L1 | — | — |
Connectivity
| Specification | K40 | W31 |
|---|---|---|
| SIM Configurations | Single Nano-SIM, Dual Nano-SIM | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B7, 4G LTE B8, 4G LTE B20 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | GSM, HSPA, LTE, UMTS, 4G | GSM, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac Best value | Wi-Fi 802.11 b/g/n |
| Wi-Fi Features | Dual Band, Wi-Fi Direct, DLNA | Wi-Fi Hotspot, Wi-Fi Direct |
| Bluetooth Version | Bluetooth 5.0 Best value | Bluetooth 4.2 |
| Bluetooth Profiles | A2DP, LE | A2DP, LE |
| Navigation Systems | GPS, GLONASS | GPS, A-GPS, GLONASS Best value |
| Connectivity Features | 3.5 mm Audio Jack, NFC, microUSB, USB OTG, DLNA | 3.5 mm Audio Jack, FM Radio, Computer Sync, Infrared, OTA Sync, Tethering, VoLTE, USB Charging, USB Mass Storage, USB OTG |
| USB Version | USB 2.0 | microUSB |
| SAR American Head | — | 0.82 W/kg |
| SAR American Body | — | 0.316 W/kg |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
| Max. download speed | 300 Mbps Best value | 42.2 Mbps |
| Max. upload speed | 50 Mbps Best value | 5.76 Mbps |
Audio
| Specification | K40 | W31 |
|---|---|---|
| Microphone Count | 2 Best value | 1 |
| Audio Features | A2DP, LE, Loudspeaker | A2DP, LE, Loudspeaker |
| Alert types | — | — |
Technical
| Specification | K40 | W31 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | K40 | W31 |
|---|---|---|
| Built-in functions | — | — |
