In depth comparison and review of Xiaomi MI 4i and Xiaomi Redmi 9A. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 138.1 mm | 164.9 mm | Xiaomi Redmi 9A has greater height than Xiaomi MI 4i. |
| Width | 69.6 mm | 77.07 mm | Xiaomi Redmi 9A has greater width than Xiaomi MI 4i. |
| Depth | 7.8 mm | 9 mm | Xiaomi MI 4i is narrower than Xiaomi MI 4i. |
| Weight | 130 g | 196 g | Xiaomi MI 4i is lighter than Xiaomi MI 4i. |
| Body Colour | Black | Dark grey | White | Sky blue | Granite grey | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.29 W/kg | 0.398 W/kg (head), 1.186 W/kg (body), 2.526 W/kg (limb) | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 5" | 6.53" | Xiaomi Redmi 9A has larger screen size than Xiaomi MI 4i. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | Xiaomi MI 4i has better screen resolution than Xiaomi Redmi 9A. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 441 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 400 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | - | Blue light filter, Sunlight mode | |
| Display Features | - | Reading mode, Colour temperature adjustment, Dot Drop display | |
| Display Protection (Screen Protector) | Corning Concore Glass | - |
| PROCESSOR | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | MediaTek Helio G25 | |
|---|---|---|---|
| Clock Speed | 1.7 GHz | 2 GHz | Xiaomi Redmi 9A has higher clock speed than Xiaomi MI 4i. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | PowerVR GE8320 |
| MEMORY | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 2 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Xiaomi Redmi 9A has more internal memory than Xiaomi MI 4i. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Lens Aperture | F/2.0 | - | |
| Lens Construction | 5-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR, Kaleidoscope | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, manual mode | AI portrait mode, AI Beautify 5.0 | |
| Face Recognition (Face ID) | Face detection, smile detection | Face recognition | Both phones have face detection. |
| Light Source | Dual LED flash | Single tone LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF), AI scene detection |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.8 | F/2.2 | Xiaomi MI 4i has better front lens aperture than Xiaomi MI 4i. |
| Lens Element Qty (Front) | 5-element | - | |
| Pixel Size (Front) | - | 1.12 μm | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | AI portrait mode, Portrait, AI Beautify 5.0 | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 9A has face detection. |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | - | Self-timer, Palm shutter |
| BATTERY AND CHARGING | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Battery Capacity (Battery Size) | 3120 mAh | 5000 mAh | Xiaomi Redmi 9A has larger battery capacity than Xiaomi MI 4i. |
|---|---|---|---|
| Standby Time | - | 816 hours | |
| Talk Time | 2100 minutes | 2280 minutes | Xiaomi Redmi 9A has longer battery life when making calls than Xiaomi MI 4i. |
| Run Time Details | Talk (WCDMA): up to 2100 min | Standby: up to 816 hrs Playback (audio): up to 168 hrs Talk: up to 2280 min Playback (video): up to 19 hrs Gaming: up to 14 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0.2 (Lollipop) | - | |
| User Interface | MIUI V6 | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 3, Band 7, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 1800+, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP, HID | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, DivX, H.264 | MKV, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP | |
| Sound Enhancements | - | 0.64cc Sound Chamber |
| FEATURES | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor | Accelerometer, ambient light sensor, distance sensor | |
| Security Devices | - | Face recognition | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | AI face unlock, HyperEngine technology |
| OTHERS | Xiaomi MI 4i | Xiaomi Redmi 9A |
|---|
| Included Accessories | Power adapter | USB cable, SIM card removal tool, 10W charger |
|---|
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