LG K4 LTE K121 vs LG K4 LTE K120e
| Vormgeving | Touchscreen | Touchscreen |
| Afmetingen | 131.90 x 66.70 x 8.90 mm | 131.90 x 66.70 x 8.90 mm |
| Gewicht | 120.00 g | 120.00 g |
| Schermgrootte | 4.50" | 4.50" |
| Scherm | Kleurrijk / TFT 480 x 854 px (4.50") 218 ppi | Kleurrijk / TFT 480 x 854 px (4.50") 218 ppi |
| Bescherming scherm |   | |
| Extra scherm | | |
| Secundaire bescherming scherm | | |
| Standaard batterij | Li-Ion 1940 mAhBuy powerbank | Li-Ion 1940 mAhBuy powerbank |
| Snel opladen van de batterij | | |
| Draadloos opladen van de batterij | | |
| Intern geheugen | 8 GB | 8 GB |
| RAM-geheugen | 1 GB | 1 GB |
| Geheugen kaarten |  microSD, microSDHC, microSDXC tot 32 GBBuy memory card | microSD, microSDHC, microSDXC tot 32 GBBuy memory card |
| Besturingssysteem | Android 5.1.1 Lollipop | Android 5.1.1 Lollipop |
| Processor | Qualcomm Snapdragon 210 MSM8909 | MediaTek MT6735M |
| CPU-klok | 1100 MHz | 1000 MHz |
| GPU | Adreno 304 | ARM Mali-T720 MP2 |
| Touchscreen | | |
| Dual SIM | | |
| SIM-kaarten standaard | SingleSIM(microSIM) | SingleSIM(microSIM) |
| Introductiedatum | I. kwartaal 2016 | I. kwartaal 2016 |
| Andere namen van deze telefoon | - | - |
| GSM standaard | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS standaard (3G) | 850 900 2100 | 850 900 2100 |
| LTE-standaard | FDD LTE: 2600, 1800, 800 | FDD LTE: 2600, 1800, 800 |
| CDMA standaard | | |
| TD-SCDMA-standaard | | |
| UMA standaard | | |
CAMERA'S - TERUG
| Eerste camera | | |
| Matrix | 5 Mpx | 5 Mpx |
| Schermresolutie | 2592x1944 px | 2592x1944 px |
| Optische zoom | | |
| Flitser | LED | LED |
| Dual-color LED-flitser | | |
| Videoresolutie | 1280x720 px |  |
| Extra | AF | AF |
CAMERA'S - VOORKANT
| Eerste camera | | |
| Matrix | 2 Mpx | 2 Mpx |
| Schermresolutie | 1920x1080 px | 1920x1080 px |
| Optische zoom | | |
| Flitser | | |
| Dual-color LED-flitser | | |
| Extra | FF | FF |
SENSORS
| Accelerometer | | |
| Nabijheid | | |
| Licht sensor | | |
| Magnetometer | | |
| Gyroscoop | | |
| Barometer | | |
| Altimeter | | |
| Gravity sensor | | |
| Hall-effect sensor | | |
| Iris scanner | | |
| Vingerafdrukscanner | | |
| Thermometer | | |
| Hygrometer | | |
Gegevens transmissie
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | 42.20 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | - |
| LTE UP | | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.0 LE | v4.1 |
| Perfil A2DP | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n |
| WiFi frequenties | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi-hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | |
| Video conferentie verbinding | | |
| Redirect | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Predictive text | T9 | T9 |
| Swype | | |
| E-mailclient | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| QWERTY toetsenbord | | |
| RSS reader | | |
Multimedia
| Radio | | |
| MP3 bediening | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Geluidsformaten | AAC, AAC+, AMR, FLAC, MIDI, OGG, PCM, WAV, eAAC+ | AAC, AAC+, AMR, FLAC, MIDI, OGG, PCM, WAV, eAAC+ |
| Ringtone polyfoon | | |
| Video beltonen | | |
| Beltoon componist | | |
| Spelletjes | | |
| Java | ART | ART |
| Videoverbinding | | |
| DVB-H televisie | | |
| TV aansluiting | | |
PIM EN EXTRA FUNCTIES
| Klok | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Valuta Converter | | |
| Organizer | | |
| Agenda | | |
| Vliegtuigstand | | |
| SyncML | | |
| Data en fax | | |
| Schermbeveiliging | | |
| Thema's | | |
| Verwisselbare cover | | |
| Voice picking | | |
| Speaker | | |
| Memorecorder | | |
| Trilalarm | | |