Side-by-side technical data
Xiaomi Mi A3 vs Xiaomi Redmi Note 9
Comparison between Xiaomi Mi A3 and Xiaomi Redmi Note 9: camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi.
The verdict
Neither runs away with it: each wins something.
| Category | Mi A3 | Redmi Note 9 |
|---|---|---|
| Design & display | 6.1 | 4.9 |
| Performance & hardware | 3.8 | 2.6 |
| Camera | 5.1 | 5.1 |
| Connectivity | 4.8 | 5.7 |
| Battery & charging | 3.8 | 6.1 |
Which one is for you?
Xiaomi Mi A3, if you care about…
- Storage Type
- UFS 2.1
- against eMMC 5.1
- Display Technology
- Super AMOLED
- against IPS LCD
- Weight
- 173.8 g
- against 199 g
- Body Thickness
- 8.5 mm
- against 8.9 mm
Xiaomi Redmi Note 9, if you care about…
- Battery Capacity
- 5,020 mAh
- against 4,030 mAh
- Display Pixel Density
- 395 ppi
- against 282 ppi
- Battery Features
- Non-Removable, Rechargeable, Fast Charging, Reverse Charging, Charger Included, Battery Level Indicator
- against Fast Charging, Battery Level Indicator, Charger Included, Rechargeable
- Display Diagonal
- 6.53″
- against 6.09″
Specification comparison
Performance
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Processor Model | Qualcomm Snapdragon 665 | MediaTek Helio G85 |
| Processor Process Size | 11 nm Best value | 12 nm |
| Graphics GPU | Qualcomm Adreno 610 | Mali-G52 MC2 |
| Storage Type | UFS 2.1 Best value | eMMC 5.1 |
| Maximum CPU Clock | 2 GHz | 2 GHz |
| Maximum Storage Capacity | 128 GB | 128 GB |
| AnTuTu Score | 143,000 | 225,154 |
| Geekbench 6 Single-Core | — | 424 |
| Geekbench 6 Multi-Core | — | 1,322 |
| CPU Description | Octa-core: 4 × 2.0 GHz Kryo 260 Gold and 4 × 1.8 GHz Kryo 260 Silver | Octa-core processor with 2 Cortex-A75 cores at 2.0 GHz and 6 Cortex-A55 cores at 1.8 GHz. |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 6 GB | 6 GB |
| RAM Type | DDR4 | LPDDR4X |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | v10 |
| Maximum memory card | 256 GB | — |
Design
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Body Colors | Grey, Blue, White | Green, Grey, White, Blue |
| Body Thickness | 8.5 mm Best value | 8.9 mm |
| Body Width | 71.9 mm | 77.2 mm |
| Body Height | 153.5 mm | 162.3 mm |
| Weight | 173.8 g Best value | 199 g |
| Usable Surface | 82.5 % | 83.5 % Best value |
| Body Materials | Glass, Plastic | Glass, Plastic, P2i Nano Coating |
| Resistance Features | — | IP53 |
Battery
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Battery Capacity | 4,030 mAh | 5,020 mAh Best value |
| Battery Type | Li-Po | Li-Polymer |
| Fast Charge Power | 18 W | 18 W |
| Battery Features | Fast Charging, Battery Level Indicator, Charger Included, Rechargeable | Non-Removable, Rechargeable, Fast Charging, Reverse Charging, Charger Included, Battery Level Indicator Best value |
Display
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Display Aspect Ratio | 19.5:9 | 19.5:9 |
| Display Technology | Super AMOLED Best value | IPS LCD |
| Peak Display Brightness | — | 450 nits |
| Display Diagonal | 6.09″ | 6.53″ Best value |
| Display Horizontal Resolution | 720 px | 1,080 px Best value |
| Display Vertical Resolution | 1,560 px | 2,340 px Best value |
| Display Pixel Density | 282 ppi | 395 ppi Best value |
| Display Refresh Rate | 60 Hz | 60 Hz |
| Display Contrast Ratio | — | 1,500 :1 |
| Display Features | Gorilla Glass 5, Always-On Display, Touchscreen | Gorilla Glass 5, Hole-Punch Notch, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless, TÜV Rheinland Eye Comfort Certification |
Sensors
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Fingerprint Sensor Placement | Under Display | Rear |
Sensor
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Light Sensor, Virtual Proximity Sensing |
Software
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Operating System | Android 9 | Android 10 |
| OS Family | Android | — |
| OS Version | 9 | — |
| Google Services | — | Yes |
Connectivity
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| 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 B20, LTE B28, 4G LTE B38, 4G LTE B40 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 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 B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | GSM, 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 | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE, aptX HD | A2DP, LE |
| Navigation Systems | GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo Best value |
| Connectivity Features | 3.5 mm Audio Jack, Infrared, FM Radio, USB Type-C | USB Charging, USB Mass Storage, USB OTG, USB Type-C, NFC, 3.5 mm Audio Jack, FM Radio, Infrared, Computer Sync, OTA Sync, Tethering, VoLTE, VoWiFi |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | 0.53 W/kg Best value | 0.84 W/kg |
| SAR American Body | 0.72 W/kg Best value | 0.9 W/kg |
| SAR (EU) head | 0.3 W/kg Best value | 0.8 W/kg |
| SAR (EU) body | 1.1 W/kg Best value | 1.14 W/kg |
| Max. download speed | 450 Mbps Best value | 300 Mbps |
| Max. upload speed | 50 Mbps | 100 Mbps Best value |
Audio
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Microphone Count | 2 | 2 |
| Audio Features | A2DP, LE, aptX HD, Loudspeaker | A2DP, LE, Loudspeaker |
Technical
| Specification | Mi A3 | Redmi Note 9 |
|---|---|---|
| Model numbers | M1906F9SH, M1906F9SI | M2003J15SC, M2003J15SG, M2003J15SS |
