Side-by-side technical data
Microsoft Surface Duo vs Xiaomi Redmi 9 Power
Comparison between Microsoft Surface Duo and Xiaomi Redmi 9 Power: camera, battery, fast charging, display, performance and colors, side by side. More phones from Microsoft and Xiaomi.
The verdict
Your pick: Microsoft Surface Duo, ahead on Design & display, Performance & hardware and Connectivity. Unless Camera or Battery & charging decides it for you.
| Category | Surface Duo | Redmi 9 Power |
|---|---|---|
| Design & display | 6.5 | 4.8 |
| Performance & hardware | 5.4 | 3.3 |
| Camera | 3.7 | 4.6 |
| Connectivity | 5.7 | 4.9 |
| Battery & charging | 3.2 | 6.6 |
Which one is for you?
Microsoft Surface Duo, if you care about…
- AnTuTu Score
- 572,200
- against 184,000
- Wi-Fi Standards
- Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 802.11a/b/g/n/ac
- against Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
- Storage Type
- UFS 3.0
- against UFS 2.2
- Display Technology
- AMOLED
- against IPS LCD
Xiaomi Redmi 9 Power, if you care about…
- Battery Capacity
- 6,000 mAh
- against 3,577 mAh
- Weight
- 198 g
- against 250 g
- Battery Features
- Non-Removable, Fast Charging, Reverse Charging, Rechargeable, Battery Level Indicator, Charger Included
- against Fast Charging, Non-Removable, Rechargeable, Battery Level Indicator
- Usable Surface
- 83.4 %
- against 80 %
Specification comparison
Performance
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Processor Model | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 662 |
| Processor Process Size | 7 nm Best value | 11 nm |
| Graphics GPU | Qualcomm Adreno 640 | Qualcomm Adreno 610 |
| Storage Type | UFS 3.0 Best value | UFS 2.2 |
| Maximum CPU Clock | 2.84 GHz Best value | 2 GHz |
| Maximum Storage Capacity | 256 GB Best value | 128 GB |
| AnTuTu Score | 572,200 Best value | 184,000 |
| Geekbench 6 Single-Core | — | 339 |
| Geekbench 6 Multi-Core | — | 1,208 |
| CPU Description | 1x Kryo 485 at 2.84 GHz + 3x Kryo 485 at 2.4 GHz + 4x Kryo 485 at 1.8 GHz | Octa-core CPU with 4 Kryo 260 Gold cores at 2.0 GHz and 4 Kryo 260 Silver cores at 1.8 GHz |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 6 GB | 6 GB |
| RAM Type | LPDDR4X | LPDDR4X |
| Expandable Storage | No | Yes Best value |
| AnTuTu version | v10 | v8 |
Design
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Body Colors | White | Black, White, Red, Green, Blue |
| Body Thickness | 4.8 mm Best value | 9.6 mm |
| Body Width | 93.3 mm | 77.3 mm |
| Body Height | 145.2 mm | 162.3 mm |
| Weight | 250 g | 198 g Best value |
| Usable Surface | 80 % | 83.4 % Best value |
| Body Materials | — | Glass, Plastic, P2i Nano Coating |
| Resistance Features | — | IP52 |
| Foldable | Yes | No |
Battery
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Battery Capacity | 3,577 mAh | 6,000 mAh Best value |
| Battery Type | Li-Polymer | Li-Polymer |
| Fast Charge Power | 18 W | 18 W |
| Battery Features | Fast Charging, Non-Removable, Rechargeable, Battery Level Indicator | Non-Removable, Fast Charging, Reverse Charging, Rechargeable, Battery Level Indicator, Charger Included Best value |
Display
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Display Aspect Ratio | 4:3 | 19.5:9 |
| Display Technology | AMOLED Best value | IPS LCD |
| Peak Display Brightness | — | 400 nits |
| Display Diagonal | 5.6″ | 6.53″ Best value |
| Display Horizontal Resolution | 1,350 px Best value | 1,080 px |
| Display Vertical Resolution | 1,800 px | 2,340 px Best value |
| Display Pixel Density | 401 ppi Best value | 395 ppi |
| Display Refresh Rate | — | 60 Hz |
| Touch Sampling Rate | — | 120 Hz |
| Display Contrast Ratio | — | 1,500 :1 |
| Display Features | Water Drop Notch, HDR10, Scratch Resistant, Gorilla Glass, Capacitive Touch, Multi-Touch, Frameless, Foldable Display, Touchscreen | Gorilla Glass 3, Water Drop Notch, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless, TÜV Rheinland Eye Comfort Certification |
Sensors
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Fingerprint Sensor Placement | Side | Side |
Sensor
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Hall Sensor, Light Sensor, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gravity Sensor, Light Sensor, Gyroscope |
Software
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Operating System | Android 11 | Android 10 |
| OS Family | Android | Android |
| OS Version | 11 | — |
| Google Services | Yes | Yes |
Connectivity
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| SIM Configurations | Dual SIM Dual Standby, Nano-SIM + eSIM, Single SIM | Dual Nano-SIM, Dual SIM Dual Standby, Dual SIM |
| Cellular Bands | 2G GSM 1900, 2G GSM 1800, 2G GSM 850, 2G GSM 900, 3G UMTS B1, 3G UMTS B2, 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 B14, 4G LTE B19, 4G LTE B20, 4G LTE B25, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B29, 4G LTE B30, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B46, 4G LTE B66 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B38, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | 4G, LTE, 5G Best value | GSM, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 802.11a/b/g/n/ac Best value | Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, HFP, HID, HS, LE, MAP, PAN, OPP, PBAP/PAB, HOGP, aptX | A2DP, LE |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, QZSS, Galileo Best value | GPS, A-GPS, GLONASS, BeiDou |
| Connectivity Features | 3.5 mm Audio Jack, Computer Sync, DLNA, eSIM, OTA Sync, Tethering, USB Charging, USB Mass Storage, USB OTG, USB Type-C | 3.5 mm Audio Jack, Infrared, FM Radio, USB Charging, USB Mass Storage, USB OTG, USB Type-C, Computer Sync, OTA Sync, Tethering, VoLTE |
| USB Version | — | USB 2.0 |
| SAR American Head | — | 0.87 W/kg |
| SAR American Body | — | 0.86 W/kg |
| Max. download speed | 1,200 Mbps Best value | 390 Mbps |
| Max. upload speed | 150 Mbps | 150 Mbps |
Audio
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Microphone Count | 2 Best value | 1 |
| Audio Features | A2DP, HFP, HID, HS, LE, MAP, PAN, OPP, PBAP/PAB, HOGP, aptX | A2DP, LE, Stereo Speakers, Hi-Res Audio |
Technical
| Specification | Surface Duo | Redmi 9 Power |
|---|---|---|
| Model numbers | — | M2010J19SI, M2010J19SL |
