LG Class (F620L) vs LG K51 (K500QM7)
Side by side comparison between LG Class vs LG K51 phones, differences, pros, cons and full specifications. What's the better?
,
5"
IPS
IPS
720x1280
13
MP
MP
8mp
2GB
RAM
RAM
Quad-core
2050
mAh
mAh
(Non removable)
vs
6.5"
IPS
IPS
720x1560
13
MP
MP
13mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? LG K51 (K500QM7)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
6 Advantages 
21 Advantages | 20 Common items in both devices |
| TFT IPS LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| Full HD (1920x1080) |
| +13 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Model | Class (F620L) | K51 (K500QM7) |
| Other model names | LG U+ LG Class, LG Zero F620L, LG-F620L, LGF620L | LG K51 Unlocked LMK500QM7AUSATN, LMK500QM7ABPTTN, LM-K500QM7 |
| Country or region available |  South Korea |  USA |
| Brand | LG | LG |
| Release date | 9/30/2015 | 5/1/2020 |
| Depth | 7.4 millimeters (0.29 inches) | 8.47 millimeters (0.33 inches) |
| Size (width x height) | 71.8 x 142 millimeters (2.83 x 5.59 in) | 77.92 x 166.96 millimeters (3.07 x 6.57 in) |
| Weight | 150 grams (5.25 ounces) | 204 grams (7.14 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5" inches | 6.5" inches |
| Screen-to-body ratio | ~67.6% (screen-to-body ratio) | ~79.7% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 720x1560 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 294 PPI | 264 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Panda King Glass |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| System version | Android 5.1.1 Lollipop | Android 10 |
| Firmware update | Android 6.0 Marshmallow | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Chipset | 64bit: Qualcomm Snapdragon 410 MSM8916 (28nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 306 450Mhz | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| RAM memory | 2GB LPDDR3 | 3GB LPDDR3 |
| Internal storage | 16GB (10GB available) eMMC 4.5 | 32GB (18GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDHC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 700/850/900/1800/2100/2600 (Bands 1,3,5,7,8,17) | LTE Cat6 (2, 4, 5, 12, 13, 25, 26, 66, 71) TD-LTE (41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Back camera (main camera) | 13 megapixels | (triple camera) 13 megapixels 5MP ultrawide f/2.21.12μm1/5"115° 2MP depth f/2.41.75μm1/5"85° |
| Main camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Front camera (secondary) | 8 megapixels | 13 megapixels |
| Front camera resolution | 3264x2448 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM (RDS) | Not supported |
| TV | Digital TV | Not supported |
| Video formats | MP4, H.264, H.263, XviD | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2050 mAh | 4000 mAh |
| Charger, watts | Wired charging | 10W (5V/2A) Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 10 hours | 21 hours |
| Standby | 340 hours (14.2 days) | 576 hours (24 days) |
➕ Other features | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Gold, Silver, Blue, Black • 2.5D curved glass screen • Body metal • KnockCode, KnockOn • T-DMB TV | • Colors: Titan gray • Google Assistant • DTS:X 3D sound surround • HAC M3/T3 |
☢️ Radiation rate | ||
| LG Class (F620L) | LG K51 (K500QM7) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |