The verdict
Neither runs away with it: each wins something.
| Category | K51S | W31 |
|---|---|---|
| Design & display | 5.1 | 5.0 |
| Performance & hardware | 2.7 | 2.5 |
| Camera | 4.0 | 5.6 |
| Connectivity | 4.7 | 3.7 |
| Battery & charging | 3.8 | 3.5 |
Which one is for you?
LG K51S, if you care about…
- AnTuTu Score
- 103,115
- against 93,500
- 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…
- RAM Capacity
- 4 GB
- against 3 GB
- Maximum Storage Capacity
- 128 GB
- against 64 GB
- Weight
- 173.6 g
- against 194.5 g
- Geekbench 6 Single-Core
- 233
- against 164
Specification comparison
Performance
| Specification | K51S | W31 |
|---|---|---|
| Processor Model | MediaTek Helio P35 | MediaTek Helio P22 |
| Processor Process Size | 12 nm | 12 nm |
| Graphics GPU | PowerVR GE8320 | PowerVR GE8320 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 2.3 GHz Best value | 2 GHz |
| Maximum Storage Capacity | 64 GB | 128 GB Best value |
| AnTuTu Score | 103,115 Best value | 93,500 |
| Geekbench 6 Single-Core | 164 | 233 Best value |
| Geekbench 6 Multi-Core | 744 Best value | 723 |
| CPU Description | Octa-core processor with four 2.3 GHz Cortex-A53 cores and four 1.8 GHz Cortex-A53 cores. | 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 | v8 |
Design
| Specification | K51S | W31 |
|---|---|---|
| Body Colors | Titanium, Pink, Blue, Red, Grey | Blue |
| Body Thickness | 8.3 mm Best value | 8.4 mm |
| Body Width | 76.7 mm | 76.3 mm |
| Body Height | 165.2 mm | 166.2 mm |
| Weight | 194.5 g | 173.6 g Best value |
| Usable Surface | 84 % Best value | 80.9 % |
| Body Materials | Polycarbonate | Plastic |
| Resistance Features | MIL-STD-810G | — |
Battery
| Specification | K51S | W31 |
|---|---|---|
| Battery Capacity | 4,000 mAh | 4,000 mAh |
| Battery Type | Li-Polymer | Li-Polymer |
| Fast Charge Power | — | 10 W |
| Battery Features | Non-Removable, Rechargeable, Battery Level Indicator | Non-Removable, Rechargeable, Battery Level Indicator |
Display
| Specification | K51S | W31 |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Display Diagonal | 6.55″ Best value | 6.52″ |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,600 px | 1,600 px |
| Display Pixel Density | 282 ppi Best value | 269 ppi |
| Display Features | IPS LCD, Scratch Resistant, Hole-Punch Notch, Capacitive Touch, Multi-Touch, Frameless, Touchscreen | IPS LCD, Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless, Touchscreen |
Sensors
| Specification | K51S | W31 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Rear |
Sensor
| Specification | K51S | W31 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Light Sensor | Fingerprint Sensor, Accelerometer, Proximity Sensor, Light Sensor |
Software
| Specification | K51S | W31 |
|---|---|---|
| Operating System | Android 9 | Android 10 |
| OS Family | Android | Android |
| OS Version | 9 | 10 Best value |
| Google Services | Yes | Yes |
Connectivity
| Specification | K51S | W31 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38 | 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, UMTS, LTE, 4G | GSM, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n) | Wi-Fi 802.11 b/g/n |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, 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, A-GPS, GLONASS, BeiDou Best value | GPS, A-GPS, GLONASS |
| Connectivity Features | 3.5 mm Audio Jack, NFC, USB Charging, USB Mass Storage, USB OTG, USB Type-C, Computer Sync, OTA Sync, Tethering, 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 | 0.68 W/kg Best value | 0.82 W/kg |
| SAR American Body | 0.92 W/kg | 0.316 W/kg Best value |
| SAR (EU) head | 0.501 W/kg | — |
| SAR (EU) body | 1.335 W/kg | — |
| Max. download speed | 300 Mbps Best value | 42.2 Mbps |
| Max. upload speed | 50 Mbps Best value | 5.76 Mbps |
Audio
| Specification | K51S | W31 |
|---|---|---|
| Microphone Count | 1 | 1 |
| Audio Features | A2DP, LE, Loudspeaker | A2DP, LE, Loudspeaker |
Technical
| Specification | K51S | W31 |
|---|---|---|
| Model numbers | LMK510EMW, LM-K510EMW, LM-K510 | LMK315IM, LM-K315, LM-K315IM |
