Side-by-side technical data
Xiaomi Mi 9 vs Samsung Galaxy M31
Comparison between Xiaomi Mi 9 and Samsung Galaxy M31: camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi and Samsung.
The verdict
Neither runs away with it: each wins something.
| Category | Mi 9 | Galaxy M31 |
|---|---|---|
| Design & display | 6.7 | 6.1 |
| Performance & hardware | 5.5 | 3.8 |
| Camera | 5.6 | 5.8 |
| Connectivity | 5.4 | 5.8 |
| Battery & charging | 4.1 | 5.8 |
Which one is for you?
Xiaomi Mi 9, if you care about…
- AnTuTu Score
- 372,006
- against 180,011
- Maximum Storage Capacity
- 256 GB
- against 128 GB
- Weight
- 173 g
- against 191 g
- Fast Charge Power
- 27 W
- against 15 W
Samsung Galaxy M31, if you care about…
- Battery Capacity
- 6,000 mAh
- against 3,300 mAh
- Expandable Storage
- Yes
- against No
- OS Version
- 10
- against 9
Specification comparison
Performance
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Processor Model | Qualcomm Snapdragon 855 | Samsung Exynos 9611 |
| Processor Process Size | 7 nm Best value | 10 nm |
| Graphics GPU | Qualcomm Adreno 640 | Mali-G72 MP3 |
| Storage Type | UFS 2.1 | UFS 2.1 |
| Maximum CPU Clock | 2.84 GHz Best value | 2.3 GHz |
| Maximum Storage Capacity | 256 GB Best value | 128 GB |
| AnTuTu Score | 372,006 Best value | 180,011 |
| CPU Description | Octa-core: 1 × 2.84 GHz Kryo 485, 3 × 2.42 GHz Kryo 485, and 4 × 1.78 GHz Kryo 485 | Octa-core CPU with four Cortex-A73 cores at 2.3 GHz and four Cortex-A53 cores at 1.7 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 8 GB | 8 GB |
| RAM Type | DDR4 | LPDDR4X |
| Expandable Storage | No | Yes Best value |
| AnTuTu version | v7 | v8 |
Design
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Body Colors | Lavender, Blue, Black | Blue, Black, Red |
| Body Thickness | 7.6 mm Best value | 8.9 mm |
| Body Width | 74.7 mm | 75.1 mm |
| Body Height | 157.5 mm | 159.2 mm |
| Weight | 173 g Best value | 191 g |
| Usable Surface | 85.2 % Best value | 84.1 % |
| Body Materials | Glass, Aluminium Alloy Best value | Glass, Plastic |
Battery
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Battery Capacity | 3,300 mAh | 6,000 mAh Best value |
| Battery Type | Li-Po | Li-Polymer |
| Fast Charge Power | 27 W Best value | 15 W |
| Battery Features | Fast Charging, Wireless Charging, Battery Level Indicator, Rechargeable | Non-Removable, Fast Charging, Rechargeable, Battery Level Indicator |
| Wireless charging power | 20 W | — |
Display
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Display Aspect Ratio | 19.5:9 | 19.5:9 |
| Display Technology | Super AMOLED | AMOLED |
| Peak Display Brightness | 417 nits | 420 nits Best value |
| Display Diagonal | 6.39″ | 6.4″ Best value |
| Display Horizontal Resolution | 1,080 px | 1,080 px |
| Display Vertical Resolution | 2,340 px | 2,340 px |
| Display Pixel Density | 403 ppi | 403 ppi |
| Display Refresh Rate | 60 Hz | 60 Hz |
| Display Contrast Ratio | 3.921 :1 | — |
| Display Features | Gorilla Glass, Gorilla Glass 6, HDR10, Always-On Display, Capacitive Touch | Gorilla Glass 3, AMOLED, Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless, Always-On Display |
Sensors
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Fingerprint Sensor Placement | Under Display | Rear |
Sensor
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Compass | Fingerprint Sensor, Accelerometer, Gyroscope, Compass, Proximity Sensor |
Software
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Operating System | Android 9 | Android 10 |
| OS Family | Android | Android |
| OS Version | 9 | 10 Best value |
| OS Update Support | — | 2 years |
| Google Services | — | Yes |
| Widevine L1 | — | Yes |
Connectivity
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM | Dual Nano-SIM, Dual SIM Dual Standby |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B20, LTE B28, 4G LTE B38, 4G LTE B39, 4G LTE B40 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 3G UMTS B850, 3G UMTS B900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B17, 4G LTE B20, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41, 4G LTE B66 |
| Cellular Technologies | GSM, CDMA, HSPA, LTE, 4G | GSM, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Dual Band, Wi-Fi Direct, DLNA | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE, aptX HD | A2DP, LE, AVRCP, DIP, HFP, HID, HSP, MAP, PAN, OPP, PBAP/PAB, HOGP |
| Navigation Systems | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, A-GPS, GLONASS, Galileo, BeiDou |
| Connectivity Features | Virtual Proximity Sensing, Infrared, NFC, USB Type-C, USB OTG, DLNA | 3.5 mm Audio Jack, Virtual Proximity Sensing, NFC, FM Radio, USB Charging, USB Mass Storage, USB OTG, USB Type-C, Computer Sync, OTA Sync, Tethering, VoLTE, ANT+ |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | 0.99 W/kg | 0.52 W/kg Best value |
| SAR American Body | 1.04 W/kg | 0.69 W/kg Best value |
| SAR (EU) head | 1.39 W/kg | 0.48 W/kg Best value |
| SAR (EU) body | 1.3 W/kg | 1.13 W/kg Best value |
| Max. download speed | 1,200 Mbps Best value | 600 Mbps |
| Max. upload speed | 150 Mbps | 150 Mbps |
Audio
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Microphone Count | 2 | 2 |
| Audio Features | A2DP, LE, aptX HD, Loudspeaker | A2DP, LE, Loudspeaker, AVRCP, DIP, HFP, HID, HSP, MAP, PAN, OPP, PBAP/PAB, HOGP |
Technical
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Model numbers | M1902F1G | SM-M315F, SM-M315F/DS, SM-M315F/DSN |
Features
| Specification | Mi 9 | Galaxy M31 |
|---|---|---|
| Built-in functions | Virtual proximity sensing | — |
