LG Q9 vs LG Stylo 4 vs LG Q7 vs LG Stylo 3 Plus comparison
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| key specs |
| Display | 6.10-inch | 6.20-inch | 5.50-inch | 5.70-inch |
| Processor | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 450 | 1.5GHz octa-core | Qualcomm Snapdragon 435 |
| Front Camera | 8-megapixel | 5-megapixel | 8-megapixel | 5-megapixel |
| Rear Camera | 16-megapixel | 13-megapixel | 13-megapixel | 13-megapixel |
| RAM | 4GB | 2GB | 3GB | 2GB |
| Storage | 32GB | 32GB | 32GB | 32GB |
| Battery Capacity | 3000mAh | 3300mAh | 3000mAh | 3080mAh |
| OS | Android 8.1 Oreo | Android 8.1 | Android 8.1 | Android 7.0 |
| Resolution | 1440x3120 pixels | 1080x2160 pixels | 1080x2160 pixels | 1080x1920 pixels |
| general |
| Brand | LG | LG | LG | LG |
| Model | Q9 | Stylo 4 | Q7 | Stylo 3 Plus |
| Release date | January 1, 2019 | June 1, 2018 | May 1, 2018 | May 1, 2017 |
| Launched in India | No | - | Yes | - |
| Form factor | Touchscreen | Touchscreen | Touchscreen | Touchscreen |
| Dimensions (mm) | 153.20 x 71.90 x 7.90 | - | 143.80 x 69.30 x 8.40 | - |
| Weight (g) | 159.00 | 172.00 | 145.00 | - |
| Battery capacity (mAh) | 3000 | 3300 | 3000 | 3080 |
| Fast charging | Quick Charge 3.0 | - | - | - |
| Colours | Carmine Red, Aurora Black, Moroccan Blue | Black | Aurora Black, Moroccan Blue, Lavender Violet | - |
| IP rating | - | - | IP68 | - |
| Removable battery | - | - | - | No |
| display |
| Screen size (inches) | 6.10 | 6.20 | 5.50 | 5.70 |
| Touchscreen | Yes | Yes | Yes | Yes |
| Resolution | 1440x3120 pixels | 1080x2160 pixels | 1080x2160 pixels | 1080x1920 pixels |
| Aspect ratio | 19.5:9 | 18:9 | 18:9 | - |
| Pixels per inch (PPI) | 564 | - | 442 | - |
| hardware |
| Processor | 2.4GHz quad-core | 1.8GHz octa-core | 1.5GHz octa-core | 1.4GHz octa-core |
| Processor make | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 450 | - | Qualcomm Snapdragon 435 |
| RAM | 4GB | 2GB | 3GB | 2GB |
| Internal storage | 32GB | 32GB | 32GB | 32GB |
| Expandable storage | Yes | Yes | Yes | Yes |
| Expandable storage type | microSD | microSD | microSD | microSD |
| Expandable storage up to (GB) | 2000 | 2000 | 2000 | 256 |
| camera |
| Rear camera | 16-megapixel (f/2.2) | 13-megapixel (f/2.4) | 13-megapixel | 13-megapixel |
| Rear flash | LED | LED | LED | Yes |
| Front camera | 8-megapixel (f/1.9) | 5-megapixel | 8-megapixel | 5-megapixel |
| Rear autofocus | - | Phase detection autofocus | Phase detection autofocus | - |
| software |
| Operating system | Android 8.1 Oreo | Android 8.1 | Android 8.1 | Android 7.0 |
| connectivity |
| Wi-Fi | Yes | Yes | Yes | Yes |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 802.11 a/b/n/ac | 802.11 b/g/n | 802.11 a/b/g/n |
| GPS | Yes | Yes | Yes | Yes |
| Bluetooth | Yes, v 5.00 | Yes, v 4.20 | Yes, v 4.20 | Yes, v 4.20 |
| NFC | Yes | Yes | Yes | Yes |
| USB Type-C | Yes | - | - | - |
| FM | Yes | - | - | No |
| Headphones | - | 3.5mm | - | 3.5mm |
| Wi-Fi Direct | - | Yes | - | Yes |
| Infrared | - | - | - | No |
| USB OTG | - | - | - | Yes |
| Number of SIMs | - | - | - | 1 |
| Mobile High-Definition Link (MHL) | - | - | - | No |
| sensors |
| Fingerprint sensor | Yes | - | Yes | - |
| Proximity sensor | Yes | - | Yes | Yes |
| Accelerometer | Yes | - | Yes | Yes |
| Ambient light sensor | Yes | - | Yes | Yes |
| Face unlock | - | - | Yes | - |
| Compass/ Magnetometer | - | - | - | No |
| Gyroscope | - | - | - | Yes |
| Barometer | - | - | - | No |
| Temperature sensor | - | - | - | No |
| sim 1 |
| SIM Type | - | - | - | Nano-SIM |
| GSM/CDMA | - | - | - | GSM |
| 3G | - | - | - | No |
| 4G/ LTE | - | - | - | No |