Side by side comparison and review of Samsung Galaxy A40 and Xiaomi Redmi 7A. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A405FN/DS | - | |
| Form Factor | Touch | Touch | |
| Height | 144.4 mm | 146.3 mm | Xiaomi Redmi 7A has greater height than Samsung Galaxy A40. |
| Width | 69.2 mm | 70.41 mm | Xiaomi Redmi 7A has greater width than Samsung Galaxy A40. |
| Depth | 7.9 mm | 9.55 mm | Samsung Galaxy A40 is narrower than Samsung Galaxy A40. |
| Weight | 140 g | 165 g | Samsung Galaxy A40 is lighter than Samsung Galaxy A40. |
| Body Colour | Blue | Coral | White | Black | Matte black | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.34 W/kg (body), 0.49 W/kg (head) | 1.166 W/kg (body), 0.557 W/kg (head), 2.88 W/kg (limb) | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Super AMOLED | - | |
| Screen Size (Display Size) | 5.9" | 5.45" | Samsung Galaxy A40 has larger screen size than Xiaomi Redmi 7A. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1440 x 720 pixels | Samsung Galaxy A40 has better screen resolution than Xiaomi Redmi 7A. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 439 ppi | 295 ppi | Samsung Galaxy A40 has better pixel density than Xiaomi Redmi 7A. |
| Aspect Ratio | - | 18:9 | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1000:1 | |
| Display Enhancement Technology | Blue light filter | Sunlight mode | |
| Display Features | Always-on display, Infinity Display, Edge-to-Edge screen | Reading mode, Colour temperature adjustment, night mode |
| PROCESSOR | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Processor Type (CPU) | Samsung Exynos | Qualcomm Snapdragon 439 | |
|---|---|---|---|
| Processor Number | 7904 | - | |
| Clock Speed | 1.8 GHz | 2 GHz | Xiaomi Redmi 7A has higher clock speed than Samsung Galaxy A40. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | - | Yes | Xiaomi Redmi 7A has 64-bit architecture. |
| Graphics System (GPU) | - | Qualcomm ADRENO 505 |
| MEMORY | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| RAM | 4 GB | 2 GB | Samsung Galaxy A40 has more RAM than Xiaomi Redmi 7A. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 16 GB | Samsung Galaxy A40 has more internal memory than Xiaomi Redmi 7A. |
| User Memory | 49.4 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSDXC - up to 256 GB |
| CAMERA | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 12 Megapixel | Samsung Galaxy A40 has better camera resolution than Xiaomi Redmi 7A. |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.7 | F/2.2 | Samsung Galaxy A40 has better lens aperture than Samsung Galaxy A40. |
| Pixel Size | - | 1.25 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| HDR Mode | - | Auto HDR mode | |
| Camera Modes | 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 | AI portrait mode, AI Beautify 4.0 | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 7A has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | AR sticker, Scene Optimiser, 20 different scenes, Smart professional framing, fault detection | Phase Detect Auto-Focus (PDAF) |
| 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) | 25 Megapixel | 5 Megapixel | Samsung Galaxy A40 has better front camera resolution than Xiaomi Redmi 7A. |
| Lens Aperture (Front) | F/2.0 | - | |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | Portrait mode, AR Emoji, Motion Photos | AI portrait mode, AI Beautify 4.0 | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 7A has face detection. |
| Light Source (Front) | Display flash | Display flash | |
| Camera Features (Front) | Floating camera button | Selfie countdown |
| BATTERY AND CHARGING | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Battery Capacity (Battery Size) | 3100 mAh | 4000 mAh | Xiaomi Redmi 7A has larger battery capacity than Samsung Galaxy A40. |
|---|---|---|---|
| Fast Charging Technology | Samsung Fast Charging | - | Samsung Galaxy A40 has fast charging technology. |
| Talk Time | 1080 minutes | - | |
| Run Time Details | 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 |
- |
| CELLULAR | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 9.0 Pie | Android 9.0 Pie | |
| User Interface | Samsung One UI | MIUI 9 | |
| Intelligent Assistant | Bixby | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1900 GSM, 2100 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+ | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 4.2 | |
| NFC | Yes | - | Samsung Galaxy A40 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, PCM, AMR, MP3, FLAC, AAC +, MP4, AMR-WB, AMR-NB, WAVE | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | FLV, H.263, H.264 AVC Main Profile (MP), H.264 AVC Baseline Profile(BP) | |
| Sound Enhancements | Dolby Atmos sound technology | - |
| FEATURES | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Face recognition, fingerprint reader | Face recognition | |
| Security Technology | - | A.I. face recognition | |
| Additional Phone Features | Alarm Clock, Fast Charging | AI face unlock |
| OTHERS | Samsung Galaxy A40 | Xiaomi Redmi 7A |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TÜV Rheinland Certified Eye-Care |
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