LG Harmony
| Type | Touch |
| Dimensions | 149.86 x 76.20 x 7.62 mm |
| Weight | 141.74 g |
| Display size | 5.30" |
| Display | Color / IPS TFT 16M colors 720 x 1280 px (5.30") 277 ppi |
| Display protection | |
| Additional display | |
| Protection of the secondary display | |
| Talk time (max.) | 2G: 840 min. (14.0 h) |
| Stand-by (max.) | 2G: 350 h. (14.6 days) |
| Standard battery | Li-Ion 2800 mAhBuy powerbank
|
| Quick battery charging | |
| Wireless battery charging | |
| Internal memory | 16 GB |
| End-user memory | 8.9 GB |
| RAM memory | 1.5 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 2000 GBBuy memory card |
| Operating system | Android 7.0 Nougat |
| Processor | Qualcomm Snapdragon 425 8917 |
| Processor clock | 1400 MHz |
| GPU | Adreno 308 @500 MHz |
| Touchscreen | |
| DualSIM | |
| SIM cards standard | SingleSIM(nanoSIM) |
| Announced | 4Q 2017 |
| Other names | LG-M257; M257 |
| GSM frequencies | 850 900 1800 1900 |
| UMTS | 850 1700 1900 |
| LTE standard | FDD LTE: 1900, 1700, 850, 700 |
| Standard 5G | |
| CDMA | |
| Standard TD-SCDMA | |
| UMA |
