Samsung Galaxy S20 Ultra 5G (SM-G988U) vs LG K31 (K300QM6)
Side by side comparison between Samsung Galaxy S20 Ultra 5G vs LG K31 phones, differences, pros, cons and full specifications. What's the better?
,
6.9"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
5.7"
IPS
IPS
720x1520
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S20 Ultra 5G (SM-G988U)
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!
37 Advantages 
4 Advantages | 15 Common items in both devices |
| Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC |
| 16 million |
| LED flash |
| PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus |
| HDR photo/video on both cameras / HDR photo on both cameras |
| f/1.8 (aperture) |
| Capacitive |
| +8 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 | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Model | Galaxy S20 Ultra 5G (SM-G988U) | K31 (K300QM6) |
| Other model names | Galaxy S20 Ultra 5G (Snapdragon, 12GB RAM) - US Carriers | LG K31 (Spectrum Mobile), LMK300QM6ARCHSV, LM-K300QM6 |
| Country or region available |  USA | USA |
| Brand | Samsung | LG |
| Release date | 3/6/2020, Announced: 2/11/2020 | 8/21/2020 |
| Depth | 8.8 millimeters (0.35 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 76 x 166.9 millimeters (2.99 x 6.57 in) | 71.12 x 147.83 millimeters (2.8 x 5.82 in) |
| Weight | 222 grams (7.77 ounces) | 146 grams (5.11 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Display type | Dynamic AMOLED | TFT IPS LCD |
| Screen size | 6.9" inches | 5.7" inches |
| Screen-to-body ratio | ~90.6% (screen-to-body ratio) | ~77.1% (screen-to-body ratio) |
| Display resolution | 1440x3200 pixels (20:9) | 720x1520 pixels (19:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 509 PPI | 295 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 6 | Panda King Glass |
| Refresh rate | 120Hz | 60Hz |
| Display features | HDR10+ Always-On Display 120Hz@FHD 60Hz@QHD | Not supported |
🤖 Operating System | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| System version | Android 10 | Android 10 |
| Firmware update | Android 13 | feature not registered |
| User Interface | One UI 2.5 / 3.1 / 4.1 / 5.0 | feature not registered |
⚙️ Processor | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Chipset | 64bit: Qualcomm Snapdragon 865 (SM8250) (7nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Octa-core, 3 processors: 1x 2.84GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (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 650 (250-587MHz) | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | AnTuTu: 415976 (v7), 514485 (v8) Geekbench: 12191 (v4.4), 2697 (v5.1) GFXBench: 21fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| RAM memory | 12GB LPDDR5 | 2GB LPDDR3 |
| Internal storage | 128GB (104GB available) UFS 3.0 | 32GB (17GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 5000/1024 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 850/900/1700/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE | LTE Cat4 (2, 4, 5, 12, 13, 66) |
| Primary 5G network | SA/NSA/Sub6 (2, 5, 41, 66, 71) mmWave (260, 261) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
📷 Camera | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Back camera (main camera) | (quad camera) 108 megapixels 48MP periscope telephoto f/3.5103mm1/2.0"0.8µmPDAFOIS4x-optical-zoom10x-hybrid-zoom 12MP ultrawide f/2.213mm1.4µmSuper-Steady-video 0.3MP TOF 3D f/1.0 | (dual camera) 13 megapixels 5MP ultrawide f/2.2120°1/5.0"1.12µm |
| Main camera resolution | 12000x9000 pixels | 4128x3096 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 27mm lens |
| Sensor size | 1/1.33" inches | 1/3.1" inches |
| Pixel size | 0.8µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus on both cameras | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo on both cameras |
| Camera extras | 4K@60fps 1080p@240fps 720p@960fps | feature not registered |
📸 Front camera | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Front camera (secondary) | 40 megapixels | 5 megapixels |
| Front camera resolution | 7296x5472 pixels | 2560x1920 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | 26mm lens | 24mm lens |
| Sensor size | feature not registered | 1/5" inches |
| Pixel size | 0.7µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor | Accelerometer Fingerprint sensor (rear-mounted) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 5000 mAh | 3000 mAh |
| Charger, watts | 45W Wired fast charging USB Power Delivery 3.0 | Wired charging |
| Inductive / wireless charging | 15W Qi wireless charging (Qi/PMA) 9W Reverse wireless charging | Not supported |
| Talk time autonomy | feature not registered | 11 hours |
| Standby | feature not registered | 528 hours (22 days) |
➕ Other features | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| 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: Cosmic Black, Cosmic Grey, Cloud White • Ultrasonic fingerprint sensor • Bixby • Samsung DeX • Samsung Pay (MST, NFC) | • Colors: Silver • LG UX 9.1 |
☢️ Radiation rate | ||
| Galaxy S20 Ultra 5G (SM-G988U) | LG K31 (K300QM6) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.94W/kg (head), 0.95W/kg (body) | 0.61W/kg (head), 1.13W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |