In depth comparison and review of Xiaomi MI 4i and Samsung Galaxy A40. 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 | Samsung Galaxy A40 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A405FN/DS | |
| Form Factor | Touch | Touch | |
| Height | 138.1 mm | 144.4 mm | Samsung Galaxy A40 has greater height than Xiaomi MI 4i. |
| Width | 69.6 mm | 69.2 mm | Xiaomi MI 4i has greater width than Samsung Galaxy A40. |
| Depth | 7.8 mm | 7.9 mm | Xiaomi MI 4i is narrower than Xiaomi MI 4i. |
| Weight | 130 g | 140 g | Xiaomi MI 4i is lighter than Xiaomi MI 4i. |
| Body Colour | Black | Dark grey | White | Blue | Coral | White | Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.29 W/kg | 1.34 W/kg (body), 0.49 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | Super AMOLED | |
| Screen Size (Display Size) | 5" | 5.9" | Samsung Galaxy A40 has larger screen size than Xiaomi MI 4i. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2340 x 1080 pixels | Samsung Galaxy A40 has better screen resolution than Xiaomi MI 4i. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 441 ppi | 439 ppi | Xiaomi MI 4i has better pixel density than Samsung Galaxy A40. |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Enhancement Technology | - | Blue light filter | |
| Display Features | - | Always-on display, Infinity Display, Edge-to-Edge screen | |
| Display Protection (Screen Protector) | Corning Concore Glass | - |
| PROCESSOR | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Samsung Exynos | |
|---|---|---|---|
| Processor Number | - | 7904 | |
| Clock Speed | 1.7 GHz | 1.8 GHz | Samsung Galaxy A40 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 | - | Xiaomi MI 4i has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | - |
| MEMORY | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| RAM | 2 GB | 4 GB | Samsung Galaxy A40 has more RAM than Xiaomi MI 4i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Samsung Galaxy A40 has more internal memory than Xiaomi MI 4i. |
| User Memory | - | 49.4 GB | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 16 Megapixel | Samsung Galaxy A40 has better camera resolution than Xiaomi MI 4i. |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.7 | Samsung Galaxy A40 has better lens aperture than Xiaomi MI 4i. |
| Lens Construction | 5-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, manual mode | Panorama, Pro mode, HYPERLAPSE, portrait mode, AR Emoji, Flowers, Animals, Landscapes, Trees, Sky, Mountains, Beaches, Street scenes, Waterfalls, Snow, Birds, Text, Food, Indoor, Night view, Sunsets, Portaits, Green, Sunrises, Shore | |
| Face Recognition (Face ID) | Face detection, smile detection | - | Xiaomi MI 4i has face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | - | AR sticker, Scene Optimiser, 20 different scenes, Smart professional framing, fault detection |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 123 degree(s) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 25 Megapixel | Samsung Galaxy A40 has better front camera resolution than Xiaomi MI 4i. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.8 | F/2.0 | Xiaomi MI 4i has better front lens aperture than Xiaomi MI 4i. |
| Lens Element Qty (Front) | 5-element | - | |
| Focus Adjustment | - | Automatic | |
| Camera Modes (Front) | - | Portrait mode, AR Emoji, Motion Photos | |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | - | Floating camera button |
| BATTERY AND CHARGING | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| Battery Capacity (Battery Size) | 3120 mAh | 3100 mAh | Xiaomi MI 4i has larger battery capacity than Samsung Galaxy A40. |
|---|---|---|---|
| Fast Charging Technology | - | Samsung Fast Charging | Samsung Galaxy A40 has fast charging technology. |
| Talk Time | 2100 minutes | 1080 minutes | Xiaomi MI 4i has longer battery life when making calls than Samsung Galaxy A40. |
| Run Time Details | Talk (WCDMA): up to 2100 min | Active online usage (3G): up to 9 hrs Active online usage (4G): up to 11 hrs Active online usage (Wi-Fi): up to 11 hrs Playback (video): up to 14 hrs Playback (audio): up to 62 hrs Talk (3G): up to 1080 min |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| 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) | Android 9.0 Pie | |
| User Interface | MIUI V6 | Samsung One UI | |
| Intelligent Assistant | - | Bixby | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 3, Band 7, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 1800+, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+ | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | A2DP, HID | - | |
| NFC | - | Yes | Samsung Galaxy A40 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, DivX, H.264 | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | |
| Sound Enhancements | - | Dolby Atmos sound technology |
| FEATURES | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| 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, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | Alarm Clock, Fast Charging |
| OTHERS | Xiaomi MI 4i | Samsung Galaxy A40 |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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