Physical features | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Model | Galaxy M31 (SM-M315F/DSN 128GB) | K8 Note (32GB) |
Other model names | Galaxy M315F/Dual-Sim NFC (128GB + 6GB RAM) | Lenovo K8 Note XT1902-3 3GB RAM, M2CB2 |
Country or region available |          South Africa, Angola, Saudi Arabia, United Arab Emirates, Morocco, Mozambique, Russia, Turkey, Ukraine |  (Global, International) |
Brand | Samsung | Lenovo |
Release date | March, 2020 | August, 2017 |
Depth | 8.9 millimeters (0.35 inches) | 8.5 millimeters (0.33 inches) |
Size (width x height) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) | 75.9 x 154.5 millimeters (2.99 x 6.08 in) |
Weight | 191 grams (6.69 ounces) | 180 grams (6.3 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Internal antenna | Internal antenna |
Build, materials | Plastic body, glass front | feature not registered |
Protection against water and others | Not supported | Water splash resistant (don't immerse) |
System (OS) | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Operating system | Android 10 | Android 7.1.1 Nougat |
Firmware update | feature not registered | Android 8.0 Oreo |
Hardware | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Chipset | 64bit - Samsung Exynos 9 Octa 9611 (10nm) | 64bit - MediaTek MT6797D Helio X23 (20nm) |
CPU processor | Octa-Core, 2 processors: 2.3Ghz Quad-Core ARM Cortex-A73 1.7Ghz Quad-Core ARM Cortex-A53 | Deca-Core, 3 processors: 2.3Ghz Dual-Core ARM Cortex-A72 1.85Ghz Quad-Core ARM Cortex-A53 1.4Ghz Quad-Core ARM Cortex-A53 |
GPU graphical controller | ARM Mali-G72 MP3 | ARM Mali-T880 MP4 800Mhz |
RAM memory | 6GB LPDDR4X | 3GB LPDDR3 |
Internal storage | 128GB (108GB available) UFS 2.1 | 32GB (22GB available) |
External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
Display | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Display type | Super AMOLED | TFT IPS LCD |
Screen size | 6.4" inches | 5.5" inches |
Screen-to-body ratio | ~84.1% (screen-to-body ratio) | ~71.1% (screen-to-body ratio) |
Display resolution | 1080x2340 pixels (19.5:9) | 1080x1920 pixels |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 403 PPI | 401 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 3 |
Display features | 60Hz | feature not registered |
Mobile networks | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
Maximum download/upload | 600/150 Mbps | 150/50 Mbps |
Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
Frequency, bands | Expand band detailsCollapse details |
GSM Mhz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/2100 |
Primary 4G network | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | LTE Cat4 (Bands 1,3,5,7,8) TD-LTE (Bands 40) |
Primary 5G network | Not supported | Not supported |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Secondary 3G network | Not supported | Not supported |
Secondary 4G network | Not supported | Not supported |
Secondary data network | GPRS, EDGE | GPRS, EDGE |
Calling | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
Speakerphone | Supported | Supported |
Video calling | Supported | Supported |
Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
Camera | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Back camera (main camera) | (quad camera) 64 megapixels 8MP ultrawidef/2.212mm1/4.0"1.12µm 5MP macrof/2.425mm1/5.0"1.12µm 5MP depthf/2.2 | (dual camera) 13 megapixels 5MP depthf/1.2 |
Main camera resolution | 10120x6328 pixels | 4128x3096 pixels |
Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | Dual-LED on main camera and LED on front camera |
Focal aperture | f/1.8 (aperture) | f/1.7 (aperture) |
Focal length | 26mm lens | feature not registered |
Sensor size | 1/1.72" inches | feature not registered |
Pixel size | 0.8µm pixel | feature not registered |
Autofocus | PDAF: phase detection 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 on both cameras | HDR photo on both cameras |
2ª camera | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Front camera (secondary) | 32 megapixels | 13 megapixels |
Front camera resolution | 6528x4896 pixels | 4128x3096 pixels |
Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
Front flash | Not supported | LED |
Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
Focal length | 26mm lens | feature not registered |
Sensor size | 1/2.8" inches | feature not registered |
Pixel size | 0.8µm pixel | feature not registered |
Multimedia | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Radio | FM (RDS) | FM |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, OGG, eAAC+, FLAC |
Connectivity | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
TV output | Not supported | Not supported |
Audio output | 3.5mm jack | 3.5mm jack |
Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO | 802.11 b/g/n (2.4Ghz) |
DLNA | Not supported | Not supported |
NFC | Supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
Infrared port | Not supported | Not supported |
Other functions | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Active noise cancellation | Supported | Supported |
Vibrating alert | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
Sensors | Accelerometer Compass Ambient Light sensor Gyroscope Face unlock Fingerprint sensor (rear-mounted)
| Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope Fingerprint sensor
|
Other features | - Colors: Ocean Blue, Space Black, Red - One UI 2.0 - WiFi direct, hotspot | - Colors: Venom Black, Fine Gold - Aluminum body - 2.5D glass screen - USB OTG On-The-Go - Dolby Atmos audio - Fast battery charging (Turbo Charge) - WiFi direct, hotspot - Splash Resistant |
Power supply | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
Battery | LiPo: Li-Ion polymer (Non removable) | LiPo: Li-Ion polymer (Non removable) |
Battery capacity | 6000 mAh | 4000 mAh |
Charger, watts | 15W Fast battery charging | Standard charging |
Talk time autonomy | feature not registered | 1500 minutes | 25 hours | 1 days |
Standby | feature not registered | 22680 minutes | 378 hours | 15.8 days |
Radiation rate | Samsung Galaxy M31 (SM-M315F/DSN 128GB) | Lenovo K8 Note (32GB) |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | 0.482W/kg (head) | 1.127W/kg (body) | feature not registered |