Xiaomi Redmi Note 9 Pro (128GB) vs Samsung Galaxy M31 (SM-M315F/DS 128GB/8GB)
Side by side comparison between Xiaomi Redmi Note 9 Pro vs Samsung Galaxy M31 phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
IPS
IPS
1080x2400
64
MP
MP
16mp
6GB
RAM
RAM
Octa-core
5020
mAh
mAh
(Non removable)
vs
6.4"
AMOLED
AMOLED
1080x2340
64
MP
MP
32mp
8GB
RAM
RAM
Octa-core
6000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy M31 (SM-M315F/DS 128GB/8GB)
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!
9 Advantages 
9 Advantages | 37 Common items in both devices |
| 128GB (106GB available) / 128GB (108GB available) |
| UFS 2.1 |
| Until 512GB microSD, microSDXC / Until 1TB microSD, microSDXC |
| Plastic body, glass front/back / Plastic body, glass front |
| 60Hz |
| 16 million |
| LED flash |
| +30 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 | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Model | Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) |
| Other model names | Xiaomi Note 9 Pro (M2003J6B2G Global version) 6GB RAM | Galaxy M315F/Dual-Sim (128GB + 8GB RAM) |
| Country or region available |  (Global, International) |  India |
| Brand | Xiaomi | Samsung |
| Release date | 5/5/2020, Announced: 4/30/2020 | 3/5/2020, Announced: 2/25/2020 |
| Depth | 8.8 millimeters (0.35 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 76.68 x 165.75 millimeters (3.02 x 6.53 in) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) |
| Weight | 209 grams (7.32 ounces) | 191 grams (6.69 ounces) |
| Build, materials | Plastic body, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.67" inches | 6.4" inches |
| Screen-to-body ratio | ~84.5% (screen-to-body ratio) | ~84.1% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass 3 |
| Refresh rate | 60Hz | 60Hz |
| Display features | 450nits[typ] | 420nits[peak] |
🤖 Operating System | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| System version | Android 10 | Android 10 |
| Firmware update | Android 11 | Android 11 |
| User Interface | MIUI 11 / 12 | feature not registered |
⚙️ Processor | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 720G (SM7125) (8nm) | 64bit: Samsung Exynos 9611 (10nm) |
| CPU | Octa-core, 2 processors: 2x 2.3GHz Kryo 465 Gold (Dual-core) 6x 1.8GHz Kryo 465 Silver (Hexa-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 618 (750MHz) | ARM Mali-G72 MP3 (850MHz) |
| Performance (benchmark) | AnTuTu: 279625 (v8) Geekbench: 1785 (v5.1) GFXBench: 15fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| RAM memory | 6GB LPDDR4X | 8GB LPDDR4X |
| Internal storage | 128GB (106GB available) UFS 2.1 | 128GB (108GB available) UFS 2.1 |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| 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 | 800/150 Mbps | 600/150 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| 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, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE |
📷 Camera | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Back camera (main camera) | (quad camera) 64 megapixels 8MP ultrawide f/2.213mm1/4"1.12µm119° 5MP macro f/2.41/5"1.12µmAF 2MP depth f/2.4 | (quad camera) 64 megapixels 8MP ultrawide f/2.212mm1/4.0"1.12µm 5MP macro f/2.425mm1/5.0"1.12µm 5MP depth f/2.2 |
| Main camera resolution | 10120x6328 pixels | 10120x6328 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.9 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm (lens) | 26mm (lens) |
| Sensor size | 1/1.72" inches | 1/1.72" inches |
| Pixel size | 0.8µm pixel | 0.8µm pixel |
| 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 | Supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | 4K@30fps 1080p@30/60fps 1080p@120fps (slow motion) 720p@960fps (slow motion) | feature not registered |
📸 Front camera | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Front camera (secondary) | 16 megapixels | 32 megapixels |
| Front camera resolution | 4608x3456 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.5 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | 1/3.06" inches | 1/2.8" inches |
| Pixel size | 1µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM (RDS) |
| 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 | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 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 [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5020 mAh | 6000 mAh |
| Charger, watts | 30W Wired fast charging | 15W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| 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: Tropical Green, Glacier White, Interstellar Gray • 33W charger (30W phone support) | • Colors: Ocean Blue, Space Black, Red • One UI 2.0, 3.1 |
☢️ Radiation rate | ||
| Redmi Note 9 Pro (128GB) | Galaxy M31 (SM-M315F/DS 128GB/8GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.87W/kg (head), 0.71W/kg (body) | 0.52W/kg (head), 0.69W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.66W/kg (head), 1.02W/kg (body) | 0.482W/kg (head), 1.127W/kg (body) |