LG K9 vs LG Aristo 2
| Type | Touch | Touch |
| Dimensions | 146.30 x 73.20 x 8.20 mm | 144.78 x 71.88 x 8.13 mm |
| Weight | 152.00 g | 138.91 g |
| Display size | 5.00" | 5.00" |
| Display | Color / IPS TFT 16M colors 720 x 1280 px (5.00") 294 ppi | Color / IPS TFT 16M colors 720 x 1280 px (5.00") 294 ppi |
| Display protection |   |  |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 480 min. (8.0 h) | 2G: 1025 min. (17.1 h) |
| Stand-by (max.) | 2G: 250 h. (10.4 days) | 2G: 344 h. (14.3 days) |
| Standard battery | Li-Ion 2500 mAhBuy powerbank
| Li-Ion 2410 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 16 GB | 16 GB |
| End-user memory |  | 9 GB |
| RAM memory | 2 GB | 2 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 2000 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card |
| Operating system | Android 7.1.2 Nougat | Android 7.1.2 Nougat |
| Processor | Qualcomm Snapdragon 210 MSM8909 | Qualcomm Snapdragon 425 8917 |
| Processor clock | 1300 MHz | 1400 MHz |
| GPU | Adreno 304 | Adreno 308 @500 MHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | |
| DualSIM mode | dual standby | nd |
| Announced | 1Q 2018 | 1Q 2018 |
| Other names | - | LM-X210 |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 1700 1900 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 800 | FDD LTE: 1900, 1700, 850, 700 |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 8 Mpx | 13 Mpx |
| Resolution | | 4160x3120 px |
| Optical zoom | | |
| Digital zoom | | 4x |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | | 1920x1080 px |
| Video formats | H.263, H.264, MPEG4 - 30 fps | MPEG4, H.263, H.264, VP8, VP9 |
| Additional | AF | AF |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | 5 Mpx | 5 Mpx |
| Resolution | | 2560x1920 px |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | H.263, H.264, MPEG4 - 30 fps | MPEG4, H.263, H.264, VP8, VP9 |
| Additional | FF | - |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.2 | v4.2 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 a/b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | XT9 |
| Swype | | |
| e-mail client | POP3, IMPA4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | z RDS | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, WAV, WMA, eAAC + | AAC, AAC+, AIFF, ALAC, AMR, FLAC, M4A, MP2, OGG, WAV, WMA, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |