Side-by-side technical data
LG Harmony 4 vs LG K31
Comparison between LG Harmony 4 and LG K31: camera, battery, fast charging, display, performance and colors, side by side. More phones from LG.
The verdict
Your pick: LG K31, ahead on Design & display, Camera and Connectivity. Unless Performance & hardware or Battery & charging decides it for you.
| Category | Harmony 4 | K31 |
|---|---|---|
| Design & display | 4.9 | 5.4 |
| Performance & hardware | 2.4 | 1.9 |
| Camera | 3.8 | 4.3 |
| Connectivity | 3.3 | 4.0 |
| Battery & charging | 3.0 | 2.2 |
Which one is for you?
LG Harmony 4, if you care about…
- Battery Capacity
- 3,500 mAh
- against 3,000 mAh
- RAM Capacity
- 3 GB
- against 2 GB
- Wi-Fi Standards
- Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11a/b/g/n
- against Wi-Fi 802.11a/b/g/n
- RAM Type
- DDR4
- against LPDDR3
LG K31, if you care about…
- Display Pixel Density
- 295 ppi
- against 282 ppi
- Weight
- 146 g
- against 173 g
- SIM Configurations
- Dual Nano-SIM, Single Nano-SIM
- against Single Nano-SIM
- Microphone Count
- 2
- against 1
Specification comparison
Performance
| Specification | Harmony 4 | K31 |
|---|---|---|
| Processor Model | MediaTek Helio P22 | 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 GHz | 2 GHz |
| Maximum Storage Capacity | 32 GB | 32 GB |
| AnTuTu Score | 78,000 | 93,500 |
| Geekbench 6 Single-Core | 233 | 233 |
| Geekbench 6 Multi-Core | 723 | 723 |
| CPU Description | — | Octa-core Cortex-A53 CPU with four cores at 2.0 GHz and four cores at 1.5 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 3 GB Best value | 2 GB |
| RAM Type | DDR4 Best value | LPDDR3 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | v8 |
Design
| Specification | Harmony 4 | K31 |
|---|---|---|
| Body Colors | Grey | Grey, Silver |
| Body Thickness | 8.6 mm | 8.6 mm |
| Body Width | 74.2 mm | 71.1 mm |
| Body Height | 156.2 mm | 147.8 mm |
| Weight | 173 g | 146 g Best value |
| Usable Surface | — | 77.2 % |
| Body Materials | — | Plastic |
| Resistance Features | — | MIL-STD-810G |
Battery
| Specification | Harmony 4 | K31 |
|---|---|---|
| Battery Capacity | 3,500 mAh Best value | 3,000 mAh |
| Battery Type | Li-Ion | Li-Ion |
| Battery Features | Battery Level Indicator, Rechargeable, Non-Removable | Non-Removable, Rechargeable, Battery Level Indicator |
Display
| Specification | Harmony 4 | K31 |
|---|---|---|
| Display Aspect Ratio | 19.5:9 | 19:9 |
| Display Technology | IPS LCD | IPS LCD |
| Display Diagonal | 6.1″ Best value | 5.7″ |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,560 px Best value | 1,520 px |
| Display Pixel Density | 282 ppi | 295 ppi Best value |
| Display Features | Touchscreen | IPS LCD, Water Drop Notch, Scratch Resistant, Capacitive Touch, Multi-Touch |
Sensors
| Specification | Harmony 4 | K31 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Rear |
Sensor
| Specification | Harmony 4 | K31 |
|---|---|---|
| Sensor Features | Accelerometer, Compass, Fingerprint Sensor | Fingerprint Sensor, Accelerometer, Light Sensor, Proximity Sensor |
Software
| Specification | Harmony 4 | K31 |
|---|---|---|
| Operating System | Android 10 | Android 10 |
| OS Family | Android | Android |
| OS Version | 10 | 10 |
| Google Services | — | Yes |
Connectivity
| Specification | Harmony 4 | K31 |
|---|---|---|
| SIM Configurations | Single Nano-SIM | Dual Nano-SIM, Single Nano-SIM Best value |
| Cellular Bands | — | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 2G CDMA BC0, 2G CDMA BC1, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 3G UMTS B1, 3G UMTS B2, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B2, 4G LTE B4, 4G LTE B5, 4G LTE B12, 4G LTE B13, 4G LTE B25, 4G LTE B26, 4G LTE B41, 4G LTE B66, 4G LTE B71 |
| Cellular Technologies | LTE, 4G | GSM, CDMA, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 802.11a/b/g/n Best value | Wi-Fi 802.11a/b/g/n |
| Wi-Fi Features | — | Wi-Fi Direct, Wi-Fi Hotspot |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | — | A2DP, LE |
| Navigation Systems | GPS | GPS, A-GPS, GLONASS Best value |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, USB Type-C | 3.5 mm Audio Jack, microUSB, Computer Sync, OTA Sync, FM Radio, Tethering, VoLTE, USB Charging, USB Mass Storage |
| USB Version | USB Type-C | microUSB |
| SAR American Head | — | 0.61 W/kg |
| SAR American Body | — | 1.13 W/kg |
| Max. download speed | 300 Mbps | 300 Mbps |
| Max. upload speed | 150 Mbps | 150 Mbps |
Audio
| Specification | Harmony 4 | K31 |
|---|---|---|
| Microphone Count | 1 | 2 Best value |
| Audio Features | 3.5 mm Audio Jack | Loudspeaker, A2DP, LE |
Technical
| Specification | Harmony 4 | K31 |
|---|---|---|
| Model numbers | — | LM-K300Q, LMK300, LGL355DL |
